Update Azure SDK and support additional authentication schemes

Microsoft has updated the golang Azure SDK significantly.  Update the
azure storage driver to use the new SDK.  Add support for client
secret and MSI authentication schemes in addition to shared key
authentication.

Implement rootDirectory support for the azure storage driver to mirror
the S3 driver.

Signed-off-by: Kirat Singh <kirat.singh@beacon.io>

Co-authored-by: Cory Snider <corhere@gmail.com>

docs/configuration.md

@@ -97,6 +97,12 @@ storage:
     accountname: accountname
     accountkey: base64encodedaccountkey
     container: containername
+    rootdirectory: /az/object/name/prefix
+    credentials:
+      type: client_secret
+      clientid: client_id_string
+      tenantid: tenant_id_string
+      secret: secret_string
   gcs:
     bucket: bucketname
     keyfile: /path/to/keyfile

go.mod

@@ -3,7 +3,9 @@ module github.com/distribution/distribution/v3
 go 1.18
 
 require (
-	github.com/Azure/azure-sdk-for-go v56.3.0+incompatible
+	github.com/Azure/azure-sdk-for-go/sdk/azcore v1.3.0
+	github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.2.1
+	github.com/Azure/azure-sdk-for-go/sdk/storage/azblob v1.0.0
 	github.com/Shopify/logrus-bugsnag v0.0.0-20171204204709-577dee27f20d
 	github.com/aws/aws-sdk-go v1.43.16
 	github.com/bshuster-repo/logrus-logstash-hook v1.0.0
@@ -24,7 +26,7 @@ require (
 	github.com/sirupsen/logrus v1.8.1
 	github.com/spf13/cobra v1.6.1
 	github.com/yvasiyarov/gorelic v0.0.0-20141212073537-a9bba5b9ab50
-	golang.org/x/crypto v0.0.0-20211215153901-e495a2d5b3d3
+	golang.org/x/crypto v0.0.0-20220511200225-c6db032c6c88
 	golang.org/x/oauth2 v0.0.0-20210514164344-f6687ab2804c
 	google.golang.org/api v0.30.0
 	google.golang.org/cloud v0.0.0-20151119220103-975617b05ea8
@@ -34,31 +36,27 @@ require (
 
 require (
 	cloud.google.com/go v0.65.0 // indirect
-	github.com/Azure/go-autorest v14.2.0+incompatible // indirect
+	github.com/Azure/azure-sdk-for-go/sdk/internal v1.1.1 // indirect
-	github.com/Azure/go-autorest/autorest v0.11.24 // indirect
+	github.com/AzureAD/microsoft-authentication-library-for-go v0.8.1 // indirect
-	github.com/Azure/go-autorest/autorest/adal v0.9.18 // indirect
-	github.com/Azure/go-autorest/autorest/date v0.3.0 // indirect
-	github.com/Azure/go-autorest/autorest/to v0.4.0 // indirect
-	github.com/Azure/go-autorest/logger v0.2.1 // indirect
-	github.com/Azure/go-autorest/tracing v0.6.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/bitly/go-simplejson v0.5.0 // indirect
 	github.com/bugsnag/osext v0.0.0-20130617224835-0dd3f918b21b // indirect
 	github.com/bugsnag/panicwrap v0.0.0-20151223152923-e2c28503fcd0 // indirect
 	github.com/cespare/xxhash/v2 v2.1.2 // indirect
-	github.com/dnaeon/go-vcr v1.0.1 // indirect
 	github.com/felixge/httpsnoop v1.0.1 // indirect
-	github.com/gofrs/uuid v4.0.0+incompatible // indirect
+	github.com/golang-jwt/jwt/v4 v4.4.2 // indirect
-	github.com/golang-jwt/jwt/v4 v4.2.0 // indirect
 	github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/google/uuid v1.1.1 // indirect
 	github.com/googleapis/gax-go/v2 v2.0.5 // indirect
 	github.com/inconshreveable/mousetrap v1.0.1 // indirect
 	github.com/jmespath/go-jmespath v0.4.0 // indirect
 	github.com/kr/pretty v0.1.0 // indirect
 	github.com/kr/text v0.1.0 // indirect
+	github.com/kylelemons/godebug v1.1.0 // indirect
 	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
 	github.com/mitchellh/osext v0.0.0-20151018003038-5e2d6d41470f // indirect
+	github.com/pkg/browser v0.0.0-20210115035449-ce105d075bb4 // indirect
 	github.com/prometheus/client_model v0.2.0 // indirect
 	github.com/prometheus/common v0.32.1 // indirect
 	github.com/prometheus/procfs v0.7.3 // indirect

go.sum

@@ -32,24 +32,16 @@ cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohl
 cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RXyy7KQOVs=
 cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9ullr3+Kg0=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
-github.com/Azure/azure-sdk-for-go v56.3.0+incompatible h1:DmhwMrUIvpeoTDiWRDtNHqelNUd3Og8JCkrLHQK795c=
+github.com/Azure/azure-sdk-for-go/sdk/azcore v1.3.0 h1:VuHAcMq8pU1IWNT/m5yRaGqbK0BiQKHT8X4DTp9CHdI=
-github.com/Azure/azure-sdk-for-go v56.3.0+incompatible/go.mod h1:9XXNKU+eRnpl9moKnB4QOLf1HestfXbmab5FXxiDBjc=
+github.com/Azure/azure-sdk-for-go/sdk/azcore v1.3.0/go.mod h1:tZoQYdDZNOiIjdSn0dVWVfl0NEPGOJqVLzSrcFk4Is0=
-github.com/Azure/go-autorest v14.2.0+incompatible h1:V5VMDjClD3GiElqLWO7mz2MxNAK/vTfRHdAubSIPRgs=
+github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.2.1 h1:T8quHYlUGyb/oqtSTwqlCr1ilJHrDv+ZtpSfo+hm1BU=
-github.com/Azure/go-autorest v14.2.0+incompatible/go.mod h1:r+4oMnoxhatjLLJ6zxSWATqVooLgysK6ZNox3g/xq24=
+github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.2.1/go.mod h1:gLa1CL2RNE4s7M3yopJ/p0iq5DdY6Yv5ZUt9MTRZOQM=
-github.com/Azure/go-autorest/autorest v0.11.24 h1:1fIGgHKqVm54KIPT+q8Zmd1QlVsmHqeUGso5qm2BqqE=
+github.com/Azure/azure-sdk-for-go/sdk/internal v1.1.1 h1:Oj853U9kG+RLTCQXpjvOnrv0WaZHxgmZz1TlLywgOPY=
-github.com/Azure/go-autorest/autorest v0.11.24/go.mod h1:G6kyRlFnTuSbEYkQGawPfsCswgme4iYf6rfSKUDzbCc=
+github.com/Azure/azure-sdk-for-go/sdk/internal v1.1.1/go.mod h1:eWRD7oawr1Mu1sLCawqVc0CUiF43ia3qQMxLscsKQ9w=
-github.com/Azure/go-autorest/autorest/adal v0.9.18 h1:kLnPsRjzZZUF3K5REu/Kc+qMQrvuza2bwSnNdhmzLfQ=
+github.com/Azure/azure-sdk-for-go/sdk/storage/azblob v1.0.0 h1:u/LLAOFgsMv7HmNL4Qufg58y+qElGOt5qv0z1mURkRY=
-github.com/Azure/go-autorest/autorest/adal v0.9.18/go.mod h1:XVVeme+LZwABT8K5Lc3hA4nAe8LDBVle26gTrguhhPQ=
+github.com/Azure/azure-sdk-for-go/sdk/storage/azblob v1.0.0/go.mod h1:2e8rMJtl2+2j+HXbTBwnyGpm5Nou7KhvSfxOq8JpTag=
-github.com/Azure/go-autorest/autorest/date v0.3.0 h1:7gUk1U5M/CQbp9WoqinNzJar+8KY+LPI6wiWrP/myHw=
+github.com/AzureAD/microsoft-authentication-library-for-go v0.8.1 h1:oPdPEZFSbl7oSPEAIPMPBMUmiL+mqgzBJwM/9qYcwNg=
-github.com/Azure/go-autorest/autorest/date v0.3.0/go.mod h1:BI0uouVdmngYNUzGWeSYnokU+TrmwEsOqdt8Y6sso74=
+github.com/AzureAD/microsoft-authentication-library-for-go v0.8.1/go.mod h1:4qFor3D/HDsvBME35Xy9rwW9DecL+M2sNw1ybjPtwA0=
-github.com/Azure/go-autorest/autorest/mocks v0.4.1 h1:K0laFcLE6VLTOwNgSxaGbUcLPuGXlNkbVvq4cW4nIHk=
-github.com/Azure/go-autorest/autorest/mocks v0.4.1/go.mod h1:LTp+uSrOhSkaKrUy935gNZuuIPPVsHlr9DSOxSayd+k=
-github.com/Azure/go-autorest/autorest/to v0.4.0 h1:oXVqrxakqqV1UZdSazDOPOLvOIz+XA683u8EctwboHk=
-github.com/Azure/go-autorest/autorest/to v0.4.0/go.mod h1:fE8iZBn7LQR7zH/9XU2NcPR4o9jEImooCeWJcYV/zLE=
-github.com/Azure/go-autorest/logger v0.2.1 h1:IG7i4p/mDa2Ce4TRyAO8IHnVhAVF3RFU+ZtXWSmf4Tg=
-github.com/Azure/go-autorest/logger v0.2.1/go.mod h1:T9E3cAhj2VqvPOtCYAvby9aBXkZmbF5NWuPV8+WeEW8=
-github.com/Azure/go-autorest/tracing v0.6.0 h1:TYi4+3m5t6K48TGI9AUdb+IzbnSxvnvUMfuitfgcfuo=
-github.com/Azure/go-autorest/tracing v0.6.0/go.mod h1:+vhtPC754Xsa23ID7GlGsrdKBpUA79WCAKPPZVC2DeU=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/Shopify/logrus-bugsnag v0.0.0-20171204204709-577dee27f20d h1:UrqY+r/OJnIp5u0s1SbQ8dVfLCZJsnvazdBP5hS4iRs=
@@ -90,8 +82,7 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/denverdino/aliyungo v0.0.0-20190125010748-a747050bb1ba h1:p6poVbjHDkKa+wtC8frBMwQtT3BmqGYBjzMwJ63tuR4=
 github.com/denverdino/aliyungo v0.0.0-20190125010748-a747050bb1ba/go.mod h1:dV8lFg6daOBZbT6/BDGIz6Y3WFGn8juu6G+CQ6LHtl0=
-github.com/dnaeon/go-vcr v1.0.1 h1:r8L/HqC0Hje5AXMu1ooW8oyQyOFv4GxqpL0nRP7SLLY=
+github.com/dnaeon/go-vcr v1.1.0 h1:ReYa/UBrRyQdant9B4fNHGoCNKw6qh6P0fsdGmZpR7c=
-github.com/dnaeon/go-vcr v1.0.1/go.mod h1:aBB1+wY4s93YsC3HHjMBMrwTj2R9FHDzUr9KyGc8n1E=
 github.com/docker/go-events v0.0.0-20190806004212-e31b211e4f1c h1:+pKlWGMw7gf6bQ+oDZB4KHQFypsfjYlq/C4rfL7D3g8=
 github.com/docker/go-events v0.0.0-20190806004212-e31b211e4f1c/go.mod h1:Uw6UezgYA44ePAFQYUehOuCzmy5zmg/+nl2ZfMWGkpA=
 github.com/docker/go-metrics v0.0.1 h1:AgB/0SvBxihN0X8OR4SjsblXkbMvalQ8cjmtKQ2rQV8=
@@ -114,12 +105,9 @@ github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
-github.com/gofrs/uuid v4.0.0+incompatible h1:1SD/1F5pU8p29ybwgQSwpQk+mwdRrXCYuPhW6m+TnJw=
-github.com/gofrs/uuid v4.0.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
-github.com/golang-jwt/jwt/v4 v4.0.0/go.mod h1:/xlHOz8bRuivTWchD4jCa+NbatV+wEUSzwAxVc6locg=
+github.com/golang-jwt/jwt/v4 v4.4.2 h1:rcc4lwaZgFMCZ5jxF9ABolDcIHdBytAFgqFPbSJQAYs=
-github.com/golang-jwt/jwt/v4 v4.2.0 h1:besgBTC8w8HjP6NzQdxwKH9Z5oQMZ24ThTrHp3cZ8eU=
+github.com/golang-jwt/jwt/v4 v4.4.2/go.mod h1:m21LjoU+eqJr34lmDMbreY2eSTRJ1cv77w39/MY0Ch0=
-github.com/golang-jwt/jwt/v4 v4.2.0/go.mod h1:/xlHOz8bRuivTWchD4jCa+NbatV+wEUSzwAxVc6locg=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/groupcache v0.0.0-20191227052852-215e87163ea7/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
@@ -174,6 +162,8 @@ github.com/google/pprof v0.0.0-20200229191704-1ebb73c60ed3/go.mod h1:ZgVRPoUq/hf
 github.com/google/pprof v0.0.0-20200430221834-fc25d7d30c6d/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
 github.com/google/pprof v0.0.0-20200708004538-1a94d8640e99/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
 github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
+github.com/google/uuid v1.1.1 h1:Gkbcsh/GbpXz7lPftLA3P6TYMwjCLYm83jiFQZF/3gY=
+github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+vpHVxEJEs9eg=
 github.com/googleapis/gax-go/v2 v2.0.5 h1:sjZBwGj9Jlw33ImPtvFviGYvseOtDM7hkSKB7+Tv3SM=
 github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5mhpdKc/us6bOk=
@@ -211,6 +201,8 @@ github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORN
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc=
+github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw=
 github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
 github.com/mitchellh/mapstructure v1.1.2 h1:fmNYVwqnSfB9mZU6OS2O6GsXM+wcskZDuKQzvN1EDeE=
@@ -230,6 +222,8 @@ github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8
 github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
 github.com/opencontainers/image-spec v1.0.2 h1:9yCKha/T5XdGtO0q9Q9a6T5NUCsTn/DrBg0D7ufOcFM=
 github.com/opencontainers/image-spec v1.0.2/go.mod h1:BtxoFyWECRxE4U/7sNtV5W15zMzWCbyJoFRP3s7yZA0=
+github.com/pkg/browser v0.0.0-20210115035449-ce105d075bb4 h1:Qj1ukM4GlMWXNdMBuXcXfz/Kw9s1qm0CLY32QxuSImI=
+github.com/pkg/browser v0.0.0-20210115035449-ce105d075bb4/go.mod h1:N6UoU20jOqggOuDwUaBQpluzLNDqif3kq9z2wpdYEfQ=
 github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
@@ -276,8 +270,8 @@ github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
-github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
+github.com/stretchr/testify v1.7.1 h1:5TQK59W5E3v0r2duFAb7P95B6hEeOyEnHRa8MjYSMTY=
 github.com/yuin/goldmark v1.1.25/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.1.32/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
@@ -299,9 +293,8 @@ golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8U
 golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
+golang.org/x/crypto v0.0.0-20220511200225-c6db032c6c88 h1:Tgea0cVUD0ivh5ADBX4WwuI12DUd2to3nCYe2eayMIw=
-golang.org/x/crypto v0.0.0-20211215153901-e495a2d5b3d3 h1:0es+/5331RGQPcXlMfP+WrnIIS6dNnNRe0WB02W0F4M=
+golang.org/x/crypto v0.0.0-20220511200225-c6db032c6c88/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
-golang.org/x/crypto v0.0.0-20211215153901-e495a2d5b3d3/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
@@ -360,9 +353,7 @@ golang.org/x/net v0.0.0-20200520182314-0ba52f642ac2/go.mod h1:qpuaurCH72eLCgpAm/
 golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
-golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20210525063256-abc453219eb5/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
-golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20220127200216-cd36cc0744dd/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
 golang.org/x/net v0.7.0 h1:rJrUqqhjsgNp7KqAIc25s9pZnjU7TUcSY7HcVZjdn1g=
 golang.org/x/net v0.7.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
@@ -579,6 +570,7 @@ gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

registry/storage/blobwriter.go

@@ -94,7 +94,7 @@ func (bw *blobWriter) Commit(ctx context.Context, desc distribution.Descriptor)
 // the writer and canceling the operation.
 func (bw *blobWriter) Cancel(ctx context.Context) error {
 	dcontext.GetLogger(ctx).Debug("(*blobWriter).Cancel")
-	if err := bw.fileWriter.Cancel(); err != nil {
+	if err := bw.fileWriter.Cancel(ctx); err != nil {
 		return err
 	}
 

registry/storage/driver/azure/azure.go

@@ -8,7 +8,6 @@ import (
 	"context"
 	"fmt"
 	"io"
-	"net/http"
 	"strings"
 	"time"
 
@@ -16,22 +15,22 @@ import (
 	"github.com/distribution/distribution/v3/registry/storage/driver/base"
 	"github.com/distribution/distribution/v3/registry/storage/driver/factory"
 
-	azure "github.com/Azure/azure-sdk-for-go/storage"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/streaming"
+	"github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/blob"
+	"github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/bloberror"
+	"github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/container"
 )
 
 const driverName = "azure"
 
 const (
-	paramAccountName = "accountname"
-	paramAccountKey  = "accountkey"
-	paramContainer   = "container"
-	paramRealm       = "realm"
 	maxChunkSize = 4 * 1024 * 1024
 )
 
 type driver struct {
-	client    azure.BlobStorageClient
+	azClient      *azureClient
-	container string
+	client        *container.Client
+	rootDirectory string
 }
 
 type baseEmbed struct{ base.Base }
@@ -47,53 +46,24 @@ func init() {
 type azureDriverFactory struct{}
 
 func (factory *azureDriverFactory) Create(parameters map[string]interface{}) (storagedriver.StorageDriver, error) {
-	return FromParameters(parameters)
+	params, err := NewParameters(parameters)
-}
-
-// FromParameters constructs a new Driver with a given parameters map.
-func FromParameters(parameters map[string]interface{}) (*Driver, error) {
-	accountName, ok := parameters[paramAccountName]
-	if !ok || fmt.Sprint(accountName) == "" {
-		return nil, fmt.Errorf("no %s parameter provided", paramAccountName)
-	}
-
-	accountKey, ok := parameters[paramAccountKey]
-	if !ok || fmt.Sprint(accountKey) == "" {
-		return nil, fmt.Errorf("no %s parameter provided", paramAccountKey)
-	}
-
-	container, ok := parameters[paramContainer]
-	if !ok || fmt.Sprint(container) == "" {
-		return nil, fmt.Errorf("no %s parameter provided", paramContainer)
-	}
-
-	realm, ok := parameters[paramRealm]
-	if !ok || fmt.Sprint(realm) == "" {
-		realm = azure.DefaultBaseURL
-	}
-
-	return New(fmt.Sprint(accountName), fmt.Sprint(accountKey), fmt.Sprint(container), fmt.Sprint(realm))
-}
-
-// New constructs a new Driver with the given Azure Storage Account credentials
-func New(accountName, accountKey, container, realm string) (*Driver, error) {
-	api, err := azure.NewClient(accountName, accountKey, realm, azure.DefaultAPIVersion, true)
 	if err != nil {
 		return nil, err
 	}
+	return New(params)
+}
 
-	blobClient := api.GetBlobService()
+// New constructs a new Driver from parameters
-
+func New(params *Parameters) (*Driver, error) {
-	// Create registry container
+	azClient, err := newAzureClient(params)
-	containerRef := blobClient.GetContainerReference(container)
+	if err != nil {
-	if _, err = containerRef.CreateIfNotExists(nil); err != nil {
 		return nil, err
 	}
-
+	client := azClient.ContainerClient()
 	d := &driver{
-		client:    blobClient,
+		azClient:      azClient,
-		container: container,
+		client:        client,
-	}
+		rootDirectory: params.RootDirectory}
 	return &Driver{baseEmbed: baseEmbed{Base: base.Base{StorageDriver: d}}}, nil
 }
 
@@ -104,17 +74,16 @@ func (d *driver) Name() string {
 
 // GetContent retrieves the content stored at "path" as a []byte.
 func (d *driver) GetContent(ctx context.Context, path string) ([]byte, error) {
-	blobRef := d.client.GetContainerReference(d.container).GetBlobReference(path)
+	downloadResponse, err := d.client.NewBlobClient(d.blobName(path)).DownloadStream(ctx, nil)
-	blob, err := blobRef.Get(nil)
 	if err != nil {
 		if is404(err) {
 			return nil, storagedriver.PathNotFoundError{Path: path}
 		}
 		return nil, err
 	}
-
+	body := downloadResponse.Body
-	defer blob.Close()
+	defer body.Close()
-	return io.ReadAll(blob)
+	return io.ReadAll(body)
 }
 
 // PutContent stores the []byte content at a location designated by "path".
@@ -137,75 +106,80 @@ func (d *driver) PutContent(ctx context.Context, path string, contents []byte) e
 	// losing the existing data while migrating it to BlockBlob type. However,
 	// expectation is the clients pushing will be retrying when they get an error
 	// response.
-	blobRef := d.client.GetContainerReference(d.container).GetBlobReference(path)
+	blobName := d.blobName(path)
-	err := blobRef.GetProperties(nil)
+	blobRef := d.client.NewBlobClient(blobName)
+	props, err := blobRef.GetProperties(ctx, nil)
 	if err != nil && !is404(err) {
 		return fmt.Errorf("failed to get blob properties: %v", err)
 	}
-	if err == nil && blobRef.Properties.BlobType != azure.BlobTypeBlock {
+	if err == nil && props.BlobType != nil && *props.BlobType != blob.BlobTypeBlockBlob {
-		if err := blobRef.Delete(nil); err != nil {
+		if _, err := blobRef.Delete(ctx, nil); err != nil {
-			return fmt.Errorf("failed to delete legacy blob (%s): %v", blobRef.Properties.BlobType, err)
+			return fmt.Errorf("failed to delete legacy blob (%v): %v", *props.BlobType, err)
 		}
 	}
 
-	r := bytes.NewReader(contents)
+	_, err = d.client.NewBlockBlobClient(blobName).UploadBuffer(ctx, contents, nil)
-	// reset properties to empty before doing overwrite
+	return err
-	blobRef.Properties = azure.BlobProperties{}
-	return blobRef.CreateBlockBlobFromReader(r, nil)
 }
 
 // Reader retrieves an io.ReadCloser for the content stored at "path" with a
 // given byte offset.
 func (d *driver) Reader(ctx context.Context, path string, offset int64) (io.ReadCloser, error) {
-	blobRef := d.client.GetContainerReference(d.container).GetBlobReference(path)
+	blobRef := d.client.NewBlobClient(d.blobName(path))
-	if ok, err := blobRef.Exists(); err != nil {
+	options := blob.DownloadStreamOptions{
-		return nil, err
+		Range: blob.HTTPRange{
-	} else if !ok {
+			Offset: offset,
+		},
+	}
+	props, err := blobRef.GetProperties(ctx, nil)
+	if err != nil {
+		if is404(err) {
 			return nil, storagedriver.PathNotFoundError{Path: path}
 		}
-
+		return nil, fmt.Errorf("failed to get blob properties: %v", err)
-	err := blobRef.GetProperties(nil)
-	if err != nil {
-		return nil, err
 	}
-	info := blobRef.Properties
+	if props.ContentLength == nil {
-	size := info.ContentLength
+		return nil, fmt.Errorf("failed to get ContentLength for path: %s", path)
+	}
+	size := *props.ContentLength
 	if offset >= size {
 		return io.NopCloser(bytes.NewReader(nil)), nil
 	}
 
-	resp, err := blobRef.GetRange(&azure.GetBlobRangeOptions{
+	resp, err := blobRef.DownloadStream(ctx, &options)
-		Range: &azure.BlobRange{
-			Start: uint64(offset),
-			End:   0,
-		},
-	})
 	if err != nil {
+		if is404(err) {
+			return nil, storagedriver.PathNotFoundError{Path: path}
+		}
 		return nil, err
 	}
-	return resp, nil
+	return resp.Body, nil
 }
 
 // Writer returns a FileWriter which will store the content written to it
 // at the location designated by "path" after the call to Commit.
 func (d *driver) Writer(ctx context.Context, path string, append bool) (storagedriver.FileWriter, error) {
-	blobRef := d.client.GetContainerReference(d.container).GetBlobReference(path)
+	blobName := d.blobName(path)
-	blobExists, err := blobRef.Exists()
+	blobRef := d.client.NewBlobClient(blobName)
+
+	props, err := blobRef.GetProperties(ctx, nil)
+	blobExists := true
 	if err != nil {
+		if !is404(err) {
 			return nil, err
 		}
+		blobExists = false
+	}
+
 	var size int64
 	if blobExists {
 		if append {
-			err = blobRef.GetProperties(nil)
+			if props.ContentLength == nil {
-			if err != nil {
+				return nil, fmt.Errorf("cannot append to blob because no ContentLength property was returned for: %s", blobName)
-				return nil, err
 			}
-			blobProperties := blobRef.Properties
+			size = *props.ContentLength
-			size = blobProperties.ContentLength
 		} else {
-			err = blobRef.Delete(nil)
+			if _, err := blobRef.Delete(ctx, nil); err != nil {
-			if err != nil {
 				return nil, err
 			}
 		}
@@ -213,58 +187,68 @@ func (d *driver) Writer(ctx context.Context, path string, append bool) (storaged
 		if append {
 			return nil, storagedriver.PathNotFoundError{Path: path}
 		}
-		err = blobRef.PutAppendBlob(nil)
+		if _, err = d.client.NewAppendBlobClient(blobName).Create(ctx, nil); err != nil {
-		if err != nil {
 			return nil, err
 		}
 	}
 
-	return d.newWriter(path, size), nil
+	return d.newWriter(ctx, blobName, size), nil
 }
 
 // Stat retrieves the FileInfo for the given path, including the current size
 // in bytes and the creation time.
 func (d *driver) Stat(ctx context.Context, path string) (storagedriver.FileInfo, error) {
-	blobRef := d.client.GetContainerReference(d.container).GetBlobReference(path)
+	blobName := d.blobName(path)
+	blobRef := d.client.NewBlobClient(blobName)
 	// Check if the path is a blob
-	if ok, err := blobRef.Exists(); err != nil {
+	props, err := blobRef.GetProperties(ctx, nil)
-		return nil, err
+	if err != nil && !is404(err) {
-	} else if ok {
-		err = blobRef.GetProperties(nil)
-		if err != nil {
 		return nil, err
 	}
-		blobProperties := blobRef.Properties
+	if err == nil {
+		var missing []string
+		if props.ContentLength == nil {
+			missing = append(missing, "ContentLength")
+		}
+		if props.LastModified == nil {
+			missing = append(missing, "LastModified")
+		}
 
+		if len(missing) > 0 {
+			return nil, fmt.Errorf("required blob properties %s are missing for blob: %s", missing, blobName)
+		}
 		return storagedriver.FileInfoInternal{FileInfoFields: storagedriver.FileInfoFields{
 			Path:    path,
-			Size:    blobProperties.ContentLength,
+			Size:    *props.ContentLength,
-			ModTime: time.Time(blobProperties.LastModified),
+			ModTime: *props.LastModified,
 			IsDir:   false,
 		}}, nil
 	}
 
 	// Check if path is a virtual container
-	virtContainerPath := path
+	virtContainerPath := blobName
 	if !strings.HasSuffix(virtContainerPath, "/") {
 		virtContainerPath += "/"
 	}
 
-	containerRef := d.client.GetContainerReference(d.container)
+	maxResults := int32(1)
-	blobs, err := containerRef.ListBlobs(azure.ListBlobsParameters{
+	pager := d.client.NewListBlobsFlatPager(&container.ListBlobsFlatOptions{
-		Prefix:     virtContainerPath,
+		MaxResults: &maxResults,
-		MaxResults: 1,
+		Prefix:     &virtContainerPath,
 	})
+	for pager.More() {
+		resp, err := pager.NextPage(ctx)
 		if err != nil {
 			return nil, err
 		}
-	if len(blobs.Blobs) > 0 {
+		if len(resp.Segment.BlobItems) > 0 {
 			// path is a virtual container
 			return storagedriver.FileInfoInternal{FileInfoFields: storagedriver.FileInfoFields{
 				Path:  path,
 				IsDir: true,
 			}}, nil
 		}
+	}
 
 	// path is not a blob or virtual container
 	return nil, storagedriver.PathNotFoundError{Path: path}
@@ -277,7 +261,7 @@ func (d *driver) List(ctx context.Context, path string) ([]string, error) {
 		path = ""
 	}
 
-	blobs, err := d.listBlobs(d.container, path)
+	blobs, err := d.listBlobs(ctx, path)
 	if err != nil {
 		return blobs, err
 	}
@@ -292,10 +276,12 @@ func (d *driver) List(ctx context.Context, path string) ([]string, error) {
 // Move moves an object stored at sourcePath to destPath, removing the original
 // object.
 func (d *driver) Move(ctx context.Context, sourcePath string, destPath string) error {
-	srcBlobRef := d.client.GetContainerReference(d.container).GetBlobReference(sourcePath)
+	sourceBlobURL, err := d.URLFor(ctx, sourcePath, nil)
-	sourceBlobURL := srcBlobRef.GetURL()
+	if err != nil {
-	destBlobRef := d.client.GetContainerReference(d.container).GetBlobReference(destPath)
+		return err
-	err := destBlobRef.Copy(sourceBlobURL, nil)
+	}
+	destBlobRef := d.client.NewBlockBlobClient(d.blobName(destPath))
+	_, err = destBlobRef.CopyFromURL(ctx, sourceBlobURL, nil)
 	if err != nil {
 		if is404(err) {
 			return storagedriver.PathNotFoundError{Path: sourcePath}
@@ -303,29 +289,30 @@ func (d *driver) Move(ctx context.Context, sourcePath string, destPath string) e
 		return err
 	}
 
-	return srcBlobRef.Delete(nil)
+	_, err = d.client.NewBlobClient(d.blobName(sourcePath)).Delete(ctx, nil)
+	return err
 }
 
 // Delete recursively deletes all objects stored at "path" and its subpaths.
 func (d *driver) Delete(ctx context.Context, path string) error {
-	blobRef := d.client.GetContainerReference(d.container).GetBlobReference(path)
+	blobRef := d.client.NewBlobClient(d.blobName(path))
-	ok, err := blobRef.DeleteIfExists(nil)
+	_, err := blobRef.Delete(ctx, nil)
-	if err != nil {
+	if err == nil {
+		// was a blob and deleted, return
+		return nil
+	} else if !is404(err) {
 		return err
 	}
-	if ok {
-		return nil // was a blob and deleted, return
-	}
 
 	// Not a blob, see if path is a virtual container with blobs
-	blobs, err := d.listBlobs(d.container, path)
+	blobs, err := d.listBlobs(ctx, path)
 	if err != nil {
 		return err
 	}
 
 	for _, b := range blobs {
-		blobRef = d.client.GetContainerReference(d.container).GetBlobReference(b)
+		blobRef := d.client.NewBlobClient(d.blobName(b))
-		if err = blobRef.Delete(nil); err != nil {
+		if _, err := blobRef.Delete(ctx, nil); err != nil {
 			return err
 		}
 	}
@@ -348,15 +335,9 @@ func (d *driver) URLFor(ctx context.Context, path string, options map[string]int
 			expiresTime = t
 		}
 	}
-	blobRef := d.client.GetContainerReference(d.container).GetBlobReference(path)
+	blobName := d.blobName(path)
-	return blobRef.GetSASURI(azure.BlobSASOptions{
+	blobRef := d.client.NewBlobClient(blobName)
-		BlobServiceSASPermissions: azure.BlobServiceSASPermissions{
+	return d.azClient.SignBlobURL(ctx, blobRef.URL(), expiresTime)
-			Read: true,
-		},
-		SASOptions: azure.SASOptions{
-			Expiry: expiresTime,
-		},
-	})
 }
 
 // Walk traverses a filesystem defined within driver, starting
@@ -399,38 +380,51 @@ func directDescendants(blobs []string, prefix string) []string {
 	return keys
 }
 
-func (d *driver) listBlobs(container, virtPath string) ([]string, error) {
+func (d *driver) listBlobs(ctx context.Context, virtPath string) ([]string, error) {
 	if virtPath != "" && !strings.HasSuffix(virtPath, "/") { // containerify the path
 		virtPath += "/"
 	}
 
+	// we will replace the root directory prefix before returning blob names
+	blobPrefix := d.blobName("")
+
+	// This is to cover for the cases when the rootDirectory of the driver is either "" or "/".
+	// In those cases, there is no root prefix to replace and we must actually add a "/" to all
+	// results in order to keep them as valid paths as recognized by storagedriver.PathRegexp
+	prefix := ""
+	if blobPrefix == "" {
+		prefix = "/"
+	}
+
 	out := []string{}
-	marker := ""
+
-	containerRef := d.client.GetContainerReference(d.container)
+	listPrefix := d.blobName(virtPath)
-	for {
+	pager := d.client.NewListBlobsFlatPager(&container.ListBlobsFlatOptions{
-		resp, err := containerRef.ListBlobs(azure.ListBlobsParameters{
+		Prefix: &listPrefix,
-			Marker: marker,
-			Prefix: virtPath,
 	})
+	for pager.More() {
+		resp, err := pager.NextPage(ctx)
 		if err != nil {
-			return out, err
+			return nil, err
+		}
+		for _, blob := range resp.Segment.BlobItems {
+			if blob.Name == nil {
+				return nil, fmt.Errorf("required blob property Name is missing while listing blobs under: %s", listPrefix)
+			}
+			name := *blob.Name
+			out = append(out, strings.Replace(name, blobPrefix, prefix, 1))
+		}
 	}
 
-		for _, b := range resp.Blobs {
-			out = append(out, b.Name)
-		}
-
-		if len(resp.Blobs) == 0 || resp.NextMarker == "" {
-			break
-		}
-		marker = resp.NextMarker
-	}
 	return out, nil
 }
 
+func (d *driver) blobName(path string) string {
+	return strings.TrimLeft(strings.TrimRight(d.rootDirectory, "/")+path, "/")
+}
+
 func is404(err error) bool {
-	statusCodeErr, ok := err.(azure.AzureStorageServiceError)
+	return bloberror.HasCode(err, bloberror.BlobNotFound, bloberror.ContainerNotFound, bloberror.ResourceNotFound)
-	return ok && statusCodeErr.StatusCode == http.StatusNotFound
 }
 
 type writer struct {
@@ -443,14 +437,14 @@ type writer struct {
 	cancelled bool
 }
 
-func (d *driver) newWriter(path string, size int64) storagedriver.FileWriter {
+func (d *driver) newWriter(ctx context.Context, path string, size int64) storagedriver.FileWriter {
 	return &writer{
 		driver: d,
 		path:   path,
 		size:   size,
 		bw: bufio.NewWriterSize(&blockWriter{
+			ctx:    ctx,
 			client: d.client,
-			container: d.container,
 			path:   path,
 		}, maxChunkSize),
 	}
@@ -482,15 +476,16 @@ func (w *writer) Close() error {
 	return w.bw.Flush()
 }
 
-func (w *writer) Cancel() error {
+func (w *writer) Cancel(ctx context.Context) error {
 	if w.closed {
 		return fmt.Errorf("already closed")
 	} else if w.committed {
 		return fmt.Errorf("already committed")
 	}
 	w.cancelled = true
-	blobRef := w.driver.client.GetContainerReference(w.driver.container).GetBlobReference(w.path)
+	blobRef := w.driver.client.NewBlobClient(w.path)
-	return blobRef.Delete(nil)
+	_, err := blobRef.Delete(ctx, nil)
+	return err
 }
 
 func (w *writer) Commit() error {
@@ -506,26 +501,18 @@ func (w *writer) Commit() error {
 }
 
 type blockWriter struct {
-	client    azure.BlobStorageClient
+	// We construct transient blockWriter objects to encapsulate a write
-	container string
+	// and need to keep the context passed in to the original FileWriter.Write
+	ctx    context.Context
+	client *container.Client
 	path   string
 }
 
 func (bw *blockWriter) Write(p []byte) (int, error) {
-	n := 0
+	blobRef := bw.client.NewAppendBlobClient(bw.path)
-	blobRef := bw.client.GetContainerReference(bw.container).GetBlobReference(bw.path)
+	_, err := blobRef.AppendBlock(bw.ctx, streaming.NopCloser(bytes.NewReader(p)), nil)
-	for offset := 0; offset < len(p); offset += maxChunkSize {
-		chunkSize := maxChunkSize
-		if offset+chunkSize > len(p) {
-			chunkSize = len(p) - offset
-		}
-		err := blobRef.AppendBlock(p[offset:offset+chunkSize], nil)
 	if err != nil {
-			return n, err
+		return 0, err
 	}
-
+	return len(p), nil
-		n += chunkSize
-	}
-
-	return n, nil
 }

registry/storage/driver/azure/azure_auth.go

@@ -0,0 +1,152 @@
+package azure
+
+import (
+	"context"
+	"sync"
+	"time"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/to"
+	"github.com/Azure/azure-sdk-for-go/sdk/azidentity"
+	"github.com/Azure/azure-sdk-for-go/sdk/storage/azblob"
+	"github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/container"
+	"github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/sas"
+	"github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/service"
+)
+
+const (
+	UDCGracePeriod = 30.0 * time.Minute
+	UDCExpiryTime  = 48.0 * time.Hour
+)
+
+// signer abstracts the specifics of a blob SAS and is specialized
+// for the different authentication credentials
+type signer interface {
+	Sign(context.Context, *sas.BlobSignatureValues) (sas.QueryParameters, error)
+}
+
+type sharedKeySigner struct {
+	cred *azblob.SharedKeyCredential
+}
+
+type clientTokenSigner struct {
+	client    *azblob.Client
+	cred      azcore.TokenCredential
+	udcMutex  sync.Mutex
+	udc       *service.UserDelegationCredential
+	udcExpiry time.Time
+}
+
+// azureClient abstracts signing blob urls for a container since the
+// azure apis have completely different underlying authentication apis
+type azureClient struct {
+	container string
+	client    *azblob.Client
+	signer    signer
+}
+
+func newAzureClient(params *Parameters) (*azureClient, error) {
+	if params.AccountKey != "" {
+		cred, err := azblob.NewSharedKeyCredential(params.AccountName, params.AccountKey)
+		if err != nil {
+			return nil, err
+		}
+		client, err := azblob.NewClientWithSharedKeyCredential(params.ServiceURL, cred, nil)
+		if err != nil {
+			return nil, err
+		}
+		signer := &sharedKeySigner{
+			cred: cred,
+		}
+		return &azureClient{
+			container: params.Container,
+			client:    client,
+			signer:    signer,
+		}, nil
+	}
+
+	var cred azcore.TokenCredential
+	var err error
+	if params.Credentials.Type == "client_secret" {
+		creds := &params.Credentials
+		if cred, err = azidentity.NewClientSecretCredential(creds.TenantID, creds.ClientID, creds.Secret, nil); err != nil {
+			return nil, err
+		}
+	} else if cred, err = azidentity.NewDefaultAzureCredential(nil); err != nil {
+		return nil, err
+	}
+
+	client, err := azblob.NewClient(params.ServiceURL, cred, nil)
+	if err != nil {
+		return nil, err
+	}
+	signer := &clientTokenSigner{
+		client: client,
+		cred:   cred,
+	}
+	return &azureClient{
+		container: params.Container,
+		client:    client,
+		signer:    signer,
+	}, nil
+}
+
+func (a *azureClient) ContainerClient() *container.Client {
+	return a.client.ServiceClient().NewContainerClient(a.container)
+}
+
+func (a *azureClient) SignBlobURL(ctx context.Context, blobURL string, expires time.Time) (string, error) {
+	urlParts, err := sas.ParseURL(blobURL)
+	if err != nil {
+		return "", err
+	}
+	perms := sas.BlobPermissions{Read: true}
+	signatureValues := sas.BlobSignatureValues{
+		Protocol:      sas.ProtocolHTTPS,
+		StartTime:     time.Now().UTC().Add(-10 * time.Second),
+		ExpiryTime:    expires,
+		Permissions:   perms.String(),
+		ContainerName: urlParts.ContainerName,
+		BlobName:      urlParts.BlobName,
+	}
+	urlParts.SAS, err = a.signer.Sign(ctx, &signatureValues)
+	if err != nil {
+		return "", err
+	}
+	return urlParts.String(), nil
+}
+
+func (s *sharedKeySigner) Sign(ctx context.Context, signatureValues *sas.BlobSignatureValues) (sas.QueryParameters, error) {
+	return signatureValues.SignWithSharedKey(s.cred)
+}
+
+func (s *clientTokenSigner) refreshUDC(ctx context.Context) (*service.UserDelegationCredential, error) {
+	s.udcMutex.Lock()
+	defer s.udcMutex.Unlock()
+
+	now := time.Now().UTC()
+	if s.udc == nil || s.udcExpiry.Sub(now) < UDCGracePeriod {
+		// reissue user delegation credential
+		startTime := now.Add(-10 * time.Second)
+		expiryTime := startTime.Add(UDCExpiryTime)
+		info := service.KeyInfo{
+			Start:  to.Ptr(startTime.UTC().Format(sas.TimeFormat)),
+			Expiry: to.Ptr(expiryTime.UTC().Format(sas.TimeFormat)),
+		}
+		udc, err := s.client.ServiceClient().GetUserDelegationCredential(ctx, info, nil)
+		if err != nil {
+			return nil, err
+		}
+		s.udc = udc
+		s.udcExpiry = expiryTime
+	}
+	return s.udc, nil
+}
+
+func (s *clientTokenSigner) Sign(ctx context.Context, signatureValues *sas.BlobSignatureValues) (sas.QueryParameters, error) {
+	udc, err := s.refreshUDC(ctx)
+	if err != nil {
+		return sas.QueryParameters{}, err
+	}
+	return signatureValues.SignWithUserDelegation(udc)
+}

registry/storage/driver/azure/azure_test.go

@@ -16,6 +16,7 @@ const (
 	envAccountKey    = "AZURE_STORAGE_ACCOUNT_KEY"
 	envContainer     = "AZURE_STORAGE_CONTAINER"
 	envRealm         = "AZURE_STORAGE_REALM"
+	envRootDirectory = "AZURE_ROOT_DIRECTORY"
 )
 
 // Hook up gocheck into the "go test" runner.
@@ -27,28 +28,38 @@ func init() {
 		accountKey    string
 		container     string
 		realm         string
+		rootDirectory string
 	)
 
 	config := []struct {
 		env       string
 		value     *string
+		missingOk bool
 	}{
-		{envAccountName, &accountName},
+		{envAccountName, &accountName, false},
-		{envAccountKey, &accountKey},
+		{envAccountKey, &accountKey, false},
-		{envContainer, &container},
+		{envContainer, &container, false},
-		{envRealm, &realm},
+		{envRealm, &realm, false},
+		{envRootDirectory, &rootDirectory, true},
 	}
 
 	missing := []string{}
 	for _, v := range config {
 		*v.value = os.Getenv(v.env)
-		if *v.value == "" {
+		if *v.value == "" && !v.missingOk {
 			missing = append(missing, v.env)
 		}
 	}
 
 	azureDriverConstructor := func() (storagedriver.StorageDriver, error) {
-		return New(accountName, accountKey, container, realm)
+		params := Parameters{
+			Container:     container,
+			AccountName:   accountName,
+			AccountKey:    accountKey,
+			Realm:         realm,
+			RootDirectory: rootDirectory,
+		}
+		return New(&params)
 	}
 
 	// Skip Azure storage driver tests if environment variable parameters are not provided
@@ -61,3 +72,44 @@ func init() {
 
 	testsuites.RegisterSuite(azureDriverConstructor, skipCheck)
 }
+
+func TestParamParsing(t *testing.T) {
+	expectErrors := []map[string]interface{}{
+		{},
+		{"accountname": "acc1"},
+	}
+	for _, parameters := range expectErrors {
+		if _, err := NewParameters(parameters); err == nil {
+			t.Fatalf("Expected an error for parameter set: %v", parameters)
+		}
+	}
+	input := []map[string]interface{}{
+		{"accountname": "acc1", "accountkey": "k1", "container": "c1"},
+		{"accountname": "acc1", "container": "c1", "credentials": map[string]interface{}{"type": "default"}},
+		{"accountname": "acc1", "container": "c1", "credentials": map[string]interface{}{"type": "client_secret", "clientid": "c1", "tenantid": "t1", "secret": "s1"}},
+	}
+	expecteds := []Parameters{
+		{
+			Container: "c1", AccountName: "acc1", AccountKey: "k1",
+			Realm: "core.windows.net", ServiceURL: "https://acc1.blob.core.windows.net",
+		},
+		{
+			Container: "c1", AccountName: "acc1", Credentials: Credentials{Type: "default"},
+			Realm: "core.windows.net", ServiceURL: "https://acc1.blob.core.windows.net",
+		},
+		{
+			Container: "c1", AccountName: "acc1",
+			Credentials: Credentials{Type: "client_secret", ClientID: "c1", TenantID: "t1", Secret: "s1"},
+			Realm:       "core.windows.net", ServiceURL: "https://acc1.blob.core.windows.net",
+		},
+	}
+	for i, expected := range expecteds {
+		actual, err := NewParameters(input[i])
+		if err != nil {
+			t.Fatalf("Failed to parse: %v", input[i])
+		}
+		if *actual != expected {
+			t.Fatalf("Expected: %v != %v", *actual, expected)
+		}
+	}
+}

registry/storage/driver/azure/parser.go

@@ -0,0 +1,49 @@
+package azure
+
+import (
+	"errors"
+	"fmt"
+
+	"github.com/mitchellh/mapstructure"
+)
+
+const (
+	defaultRealm = "core.windows.net"
+)
+
+type Credentials struct {
+	Type     string `mapstructure:"type"`
+	ClientID string `mapstructure:"clientid"`
+	TenantID string `mapstructure:"tenantid"`
+	Secret   string `mapstructure:"secret"`
+}
+
+type Parameters struct {
+	Container        string      `mapstructure:"container"`
+	AccountName      string      `mapstructure:"accountname"`
+	AccountKey       string      `mapstructure:"accountkey"`
+	Credentials      Credentials `mapstructure:"credentials"`
+	ConnectionString string      `mapstructure:"connectionstring"`
+	Realm            string      `mapstructure:"realm"`
+	RootDirectory    string      `mapstructure:"rootdirectory"`
+	ServiceURL       string      `mapstructure:"serviceurl"`
+}
+
+func NewParameters(parameters map[string]interface{}) (*Parameters, error) {
+	params := Parameters{
+		Realm: defaultRealm,
+	}
+	if err := mapstructure.Decode(parameters, &params); err != nil {
+		return nil, err
+	}
+	if params.AccountName == "" {
+		return nil, errors.New("no accountname parameter provided")
+	}
+	if params.Container == "" {
+		return nil, errors.New("no container parameter provider")
+	}
+	if params.ServiceURL == "" {
+		params.ServiceURL = fmt.Sprintf("https://%s.blob.%s", params.AccountName, params.Realm)
+	}
+	return &params, nil
+}

registry/storage/driver/filesystem/driver.go

@@ -139,7 +139,7 @@ func (d *driver) PutContent(ctx context.Context, subPath string, contents []byte
 	defer writer.Close()
 	_, err = io.Copy(writer, bytes.NewReader(contents))
 	if err != nil {
-		writer.Cancel()
+		writer.Cancel(ctx)
 		return err
 	}
 	return writer.Commit()
@@ -387,7 +387,7 @@ func (fw *fileWriter) Close() error {
 	return nil
 }
 
-func (fw *fileWriter) Cancel() error {
+func (fw *fileWriter) Cancel(ctx context.Context) error {
 	if fw.closed {
 		return fmt.Errorf("already closed")
 	}

registry/storage/driver/inmemory/driver.go

@@ -293,7 +293,7 @@ func (w *writer) Close() error {
 	return nil
 }
 
-func (w *writer) Cancel() error {
+func (w *writer) Cancel(ctx context.Context) error {
 	if w.closed {
 		return fmt.Errorf("already closed")
 	} else if w.committed {

registry/storage/driver/s3-aws/s3.go

@@ -1425,7 +1425,7 @@ func (w *writer) Close() error {
 	return w.flushPart()
 }
 
-func (w *writer) Cancel() error {
+func (w *writer) Cancel(ctx context.Context) error {
 	if w.closed {
 		return fmt.Errorf("already closed")
 	} else if w.committed {

registry/storage/driver/storagedriver.go

@@ -103,7 +103,7 @@ type FileWriter interface {
 	Size() int64
 
 	// Cancel removes any written content from this FileWriter.
-	Cancel() error
+	Cancel(context.Context) error
 
 	// Commit flushes all content written to this FileWriter and makes it
 	// available for future calls to StorageDriver.GetContent and

registry/storage/driver/swift/swift.go

@@ -850,14 +850,14 @@ func (w *writer) Close() error {
 	return nil
 }
 
-func (w *writer) Cancel() error {
+func (w *writer) Cancel(ctx context.Context) error {
 	if w.closed {
 		return fmt.Errorf("already closed")
 	} else if w.committed {
 		return fmt.Errorf("already committed")
 	}
 	w.cancelled = true
-	return w.driver.Delete(context.Background(), w.path)
+	return w.driver.Delete(ctx, w.path)
 }
 
 func (w *writer) Commit() error {

registry/storage/driver/testdriver/testdriver.go

@@ -61,9 +61,9 @@ func (tfw *testFileWriter) Close() error {
 	return tfw.FileWriter.Close()
 }
 
-func (tfw *testFileWriter) Cancel() error {
+func (tfw *testFileWriter) Cancel(ctx context.Context) error {
 	tfw.Write(nil)
-	return tfw.FileWriter.Cancel()
+	return tfw.FileWriter.Cancel(ctx)
 }
 
 func (tfw *testFileWriter) Commit() error {

vendor/github.com/Azure/azure-sdk-for-go/NOTICE.txt

@@ -1,29 +0,0 @@
-NOTICES AND INFORMATION
-Do Not Translate or Localize
-
-This software incorporates material from third parties. Microsoft makes certain
-open source code available at https://3rdpartysource.microsoft.com, or you may
-send a check or money order for US $5.00, including the product name, the open
-source component name, and version number, to:
-
-Source Code Compliance Team
-Microsoft Corporation
-One Microsoft Way
-Redmond, WA 98052
-USA
-
-Notwithstanding any other terms, you may reverse engineer this software to the
-extent required to debug changes to any libraries licensed under the GNU Lesser
-General Public License.
-
-------------------------------------------------------------------------------
-
-Azure SDK for Go uses third-party libraries or other resources that may be
-distributed under licenses different than the Azure SDK for Go software.
-
-In the event that we accidentally failed to list a required notice, please
-bring it to our attention. Post an issue or email us:
-
-           azgosdkhelp@microsoft.com
-
-The attached notices are provided for information only.

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/CHANGELOG.md

@@ -0,0 +1,514 @@
+# Release History
+
+## 1.3.0 (2023-01-06)
+
+### Features Added
+* Added `BearerTokenOptions.AuthorizationHandler` to enable extending `runtime.BearerTokenPolicy`
+  with custom authorization logic
+* Added `Client` types and matching constructors to the `azcore` and `arm` packages.  These represent a basic client for HTTP and ARM respectively.
+
+### Other Changes
+* Updated `internal` module to latest version.
+* `policy/Request.SetBody()` allows replacing a request's body with an empty one
+
+## 1.2.0 (2022-11-04)
+
+### Features Added
+* Added `ClientOptions.APIVersion` field, which overrides the default version a client
+  requests of the service, if the client supports this (all ARM clients do).
+* Added package `tracing` that contains the building blocks for distributed tracing.
+* Added field `TracingProvider` to type `policy.ClientOptions` that will be used to set the per-client tracing implementation.
+
+### Bugs Fixed
+* Fixed an issue in `runtime.SetMultipartFormData` to properly handle slices of `io.ReadSeekCloser`.
+* Fixed the MaxRetryDelay default to be 60s.
+* Failure to poll the state of an LRO will now return an `*azcore.ResponseError` for poller types that require this behavior.
+* Fixed a bug in `runtime.NewPipeline` that would cause pipeline-specified allowed headers and query parameters to be lost.
+
+### Other Changes
+* Retain contents of read-only fields when sending requests.
+
+## 1.1.4 (2022-10-06)
+
+### Bugs Fixed
+* Don't retry a request if the `Retry-After` delay is greater than the configured `RetryOptions.MaxRetryDelay`.
+* `runtime.JoinPaths`: do not unconditionally add a forward slash before the query string
+
+### Other Changes
+* Removed logging URL from retry policy as it's redundant.
+* Retry policy logs when it exits due to a non-retriable status code.
+
+## 1.1.3 (2022-09-01)
+
+### Bugs Fixed
+* Adjusted the initial retry delay to 800ms per the Azure SDK guidelines.
+
+## 1.1.2 (2022-08-09)
+
+### Other Changes
+* Fixed various doc bugs.
+
+## 1.1.1 (2022-06-30)
+
+### Bugs Fixed
+* Avoid polling when a RELO LRO synchronously terminates.
+
+## 1.1.0 (2022-06-03)
+
+### Other Changes
+* The one-second floor for `Frequency` when calling `PollUntilDone()` has been removed when running tests.
+
+## 1.0.0 (2022-05-12)
+
+### Features Added
+* Added interface `runtime.PollingHandler` to support custom poller implementations.
+  * Added field `PollingHandler` of this type to `runtime.NewPollerOptions[T]` and `runtime.NewPollerFromResumeTokenOptions[T]`.
+
+### Breaking Changes
+* Renamed `cloud.Configuration.LoginEndpoint` to `.ActiveDirectoryAuthorityHost`
+* Renamed `cloud.AzurePublicCloud` to `cloud.AzurePublic`
+* Removed `AuxiliaryTenants` field from `arm/ClientOptions` and `arm/policy/BearerTokenOptions`
+* Removed `TokenRequestOptions.TenantID`
+* `Poller[T].PollUntilDone()` now takes an `options *PollUntilDoneOptions` param instead of `freq time.Duration`
+* Removed `arm/runtime.Poller[T]`, `arm/runtime.NewPoller[T]()` and `arm/runtime.NewPollerFromResumeToken[T]()`
+* Removed `arm/runtime.FinalStateVia` and related `const` values
+* Renamed `runtime.PageProcessor` to `runtime.PagingHandler`
+* The `arm/runtime.ProviderRepsonse` and `arm/runtime.Provider` types are no longer exported.
+* Renamed `NewRequestIdPolicy()` to `NewRequestIDPolicy()`
+* `TokenCredential.GetToken` now returns `AccessToken` by value.
+
+### Bugs Fixed
+* When per-try timeouts are enabled, only cancel the context after the body has been read and closed.
+* The `Operation-Location` poller now properly handles `final-state-via` values.
+* Improvements in `runtime.Poller[T]`
+  * `Poll()` shouldn't cache errors, allowing for additional retries when in a non-terminal state.
+  * `Result()` will cache the terminal result or error but not transient errors, allowing for additional retries.
+
+### Other Changes
+* Updated to latest `internal` module and absorbed breaking changes.
+  * Use `temporal.Resource` and deleted copy.
+* The internal poller implementation has been refactored.
+  * The implementation in `internal/pollers/poller.go` has been merged into `runtime/poller.go` with some slight modification.
+  * The internal poller types had their methods updated to conform to the `runtime.PollingHandler` interface.
+  * The creation of resume tokens has been refactored so that implementers of `runtime.PollingHandler` don't need to know about it.
+* `NewPipeline()` places policies from `ClientOptions` after policies from `PipelineOptions`
+* Default User-Agent headers no longer include `azcore` version information
+
+## 0.23.1 (2022-04-14)
+
+### Bugs Fixed
+* Include XML header when marshalling XML content.
+* Handle XML namespaces when searching for error code.
+* Handle `odata.error` when searching for error code.
+
+## 0.23.0 (2022-04-04)
+
+### Features Added
+* Added `runtime.Pager[T any]` and `runtime.Poller[T any]` supporting types for central, generic, implementations.
+* Added `cloud` package with a new API for cloud configuration
+* Added `FinalStateVia` field to `runtime.NewPollerOptions[T any]` type.
+
+### Breaking Changes
+* Removed the `Poller` type-alias to the internal poller implementation.
+* Added `Ptr[T any]` and `SliceOfPtrs[T any]` in the `to` package and removed all non-generic implementations.
+* `NullValue` and `IsNullValue` now take a generic type parameter instead of an interface func parameter.
+* Replaced `arm.Endpoint` with `cloud` API
+  * Removed the `endpoint` parameter from `NewRPRegistrationPolicy()`
+  * `arm/runtime.NewPipeline()` and `.NewRPRegistrationPolicy()` now return an `error`
+* Refactored `NewPoller` and `NewPollerFromResumeToken` funcs in `arm/runtime` and `runtime` packages.
+  * Removed the `pollerID` parameter as it's no longer required.
+  * Created optional parameter structs and moved optional parameters into them.
+* Changed `FinalStateVia` field to a `const` type.
+
+### Other Changes
+* Converted expiring resource and dependent types to use generics.
+
+## 0.22.0 (2022-03-03)
+
+### Features Added
+* Added header `WWW-Authenticate` to the default allow-list of headers for logging.
+* Added a pipeline policy that enables the retrieval of HTTP responses from API calls.
+  * Added `runtime.WithCaptureResponse` to enable the policy at the API level (off by default).
+
+### Breaking Changes
+* Moved `WithHTTPHeader` and `WithRetryOptions` from the `policy` package to the `runtime` package.
+
+## 0.21.1 (2022-02-04)
+
+### Bugs Fixed
+* Restore response body after reading in `Poller.FinalResponse()`. (#16911)
+* Fixed bug in `NullValue` that could lead to incorrect comparisons for empty maps/slices (#16969)
+
+### Other Changes
+* `BearerTokenPolicy` is more resilient to transient authentication failures. (#16789)
+
+## 0.21.0 (2022-01-11)
+
+### Features Added
+* Added `AllowedHeaders` and `AllowedQueryParams` to `policy.LogOptions` to control which headers and query parameters are written to the logger.
+* Added `azcore.ResponseError` type which is returned from APIs when a non-success HTTP status code is received.
+
+### Breaking Changes
+* Moved `[]policy.Policy` parameters of `arm/runtime.NewPipeline` and `runtime.NewPipeline` into a new struct, `runtime.PipelineOptions`
+* Renamed `arm/ClientOptions.Host` to `.Endpoint`
+* Moved `Request.SkipBodyDownload` method to function `runtime.SkipBodyDownload`
+* Removed `azcore.HTTPResponse` interface type
+* `arm.NewPoller()` and `runtime.NewPoller()` no longer require an `eu` parameter
+* `runtime.NewResponseError()` no longer requires an `error` parameter
+
+## 0.20.0 (2021-10-22)
+
+### Breaking Changes
+* Removed `arm.Connection`
+* Removed `azcore.Credential` and `.NewAnonymousCredential()`
+  * `NewRPRegistrationPolicy` now requires an `azcore.TokenCredential`
+* `runtime.NewPipeline` has a new signature that simplifies implementing custom authentication
+* `arm/runtime.RegistrationOptions` embeds `policy.ClientOptions`
+* Contents in the `log` package have been slightly renamed.
+* Removed `AuthenticationOptions` in favor of `policy.BearerTokenOptions`
+* Changed parameters for `NewBearerTokenPolicy()`
+* Moved policy config options out of `arm/runtime` and into `arm/policy`
+
+### Features Added
+* Updating Documentation
+* Added string typdef `arm.Endpoint` to provide a hint toward expected ARM client endpoints
+* `azcore.ClientOptions` contains common pipeline configuration settings
+* Added support for multi-tenant authorization in `arm/runtime`
+* Require one second minimum when calling `PollUntilDone()`
+
+### Bug Fixes
+* Fixed a potential panic when creating the default Transporter.
+* Close LRO initial response body when creating a poller.
+* Fixed a panic when recursively cloning structs that contain time.Time.
+
+## 0.19.0 (2021-08-25)
+
+### Breaking Changes
+* Split content out of `azcore` into various packages.  The intent is to separate content based on its usage (common, uncommon, SDK authors).
+  * `azcore` has all core functionality.
+  * `log` contains facilities for configuring in-box logging.
+  * `policy` is used for configuring pipeline options and creating custom pipeline policies.
+  * `runtime` contains various helpers used by SDK authors and generated content.
+  * `streaming` has helpers for streaming IO operations.
+* `NewTelemetryPolicy()` now requires module and version parameters and the `Value` option has been removed.
+  * As a result, the `Request.Telemetry()` method has been removed.
+* The telemetry policy now includes the SDK prefix `azsdk-go-` so callers no longer need to provide it.
+* The `*http.Request` in `runtime.Request` is no longer anonymously embedded.  Use the `Raw()` method to access it.
+* The `UserAgent` and `Version` constants have been made internal, `Module` and `Version` respectively.
+
+### Bug Fixes
+* Fixed an issue in the retry policy where the request body could be overwritten after a rewind.
+
+### Other Changes
+* Moved modules `armcore` and `to` content into `arm` and `to` packages respectively.
+  * The `Pipeline()` method on `armcore.Connection` has been replaced by `NewPipeline()` in `arm.Connection`.  It takes module and version parameters used by the telemetry policy.
+* Poller logic has been consolidated across ARM and core implementations.
+  * This required some changes to the internal interfaces for core pollers.
+* The core poller types have been improved, including more logging and test coverage.
+
+## 0.18.1 (2021-08-20)
+
+### Features Added
+* Adds an `ETag` type for comparing etags and handling etags on requests
+* Simplifies the `requestBodyProgess` and `responseBodyProgress` into a single `progress` object
+
+### Bugs Fixed
+* `JoinPaths` will preserve query parameters encoded in the `root` url.
+
+### Other Changes
+* Bumps dependency on `internal` module to the latest version (v0.7.0)
+
+## 0.18.0 (2021-07-29)
+### Features Added
+* Replaces methods from Logger type with two package methods for interacting with the logging functionality.
+* `azcore.SetClassifications` replaces `azcore.Logger().SetClassifications`
+* `azcore.SetListener` replaces `azcore.Logger().SetListener`
+
+### Breaking Changes
+* Removes `Logger` type from `azcore`
+
+
+## 0.17.0 (2021-07-27)
+### Features Added
+* Adding TenantID to TokenRequestOptions (https://github.com/Azure/azure-sdk-for-go/pull/14879)
+* Adding AuxiliaryTenants to AuthenticationOptions (https://github.com/Azure/azure-sdk-for-go/pull/15123)
+
+### Breaking Changes
+* Rename `AnonymousCredential` to `NewAnonymousCredential` (https://github.com/Azure/azure-sdk-for-go/pull/15104)
+* rename `AuthenticationPolicyOptions` to `AuthenticationOptions` (https://github.com/Azure/azure-sdk-for-go/pull/15103)
+* Make Header constants private (https://github.com/Azure/azure-sdk-for-go/pull/15038)
+
+
+## 0.16.2 (2021-05-26)
+### Features Added
+* Improved support for byte arrays [#14715](https://github.com/Azure/azure-sdk-for-go/pull/14715)
+
+
+## 0.16.1 (2021-05-19)
+### Features Added
+* Add license.txt to azcore module [#14682](https://github.com/Azure/azure-sdk-for-go/pull/14682)
+
+
+## 0.16.0 (2021-05-07)
+### Features Added
+* Remove extra `*` in UnmarshalAsByteArray() [#14642](https://github.com/Azure/azure-sdk-for-go/pull/14642)
+
+
+## 0.15.1 (2021-05-06)
+### Features Added
+* Cache the original request body on Request [#14634](https://github.com/Azure/azure-sdk-for-go/pull/14634)
+
+
+## 0.15.0 (2021-05-05)
+### Features Added
+* Add support for null map and slice
+* Export `Response.Payload` method
+
+### Breaking Changes
+* remove `Response.UnmarshalError` as it's no longer required
+
+
+## 0.14.5 (2021-04-23)
+### Features Added
+* Add `UnmarshalError()` on `azcore.Response`
+
+
+## 0.14.4 (2021-04-22)
+### Features Added
+* Support for basic LRO polling
+* Added type `LROPoller` and supporting types for basic polling on long running operations.
+* rename poller param and added doc comment
+
+### Bugs Fixed
+* Fixed content type detection bug in logging.
+
+
+## 0.14.3 (2021-03-29)
+### Features Added
+* Add support for multi-part form data
+* Added method `WriteMultipartFormData()` to Request.
+
+
+## 0.14.2 (2021-03-17)
+### Features Added
+* Add support for encoding JSON null values
+* Adds `NullValue()` and `IsNullValue()` functions for setting and detecting sentinel values used for encoding a JSON null.
+* Documentation fixes
+
+### Bugs Fixed
+* Fixed improper error wrapping
+
+
+## 0.14.1 (2021-02-08)
+### Features Added
+* Add `Pager` and `Poller` interfaces to azcore
+
+
+## 0.14.0 (2021-01-12)
+### Features Added
+* Accept zero-value options for default values
+* Specify zero-value options structs to accept default values.
+* Remove `DefaultXxxOptions()` methods.
+* Do not silently change TryTimeout on negative values
+* make per-try timeout opt-in
+
+
+## 0.13.4 (2020-11-20)
+### Features Added
+* Include telemetry string in User Agent
+
+
+## 0.13.3 (2020-11-20)
+### Features Added
+* Updating response body handling on `azcore.Response`
+
+
+## 0.13.2 (2020-11-13)
+### Features Added
+* Remove implementation of stateless policies as first-class functions.
+
+
+## 0.13.1 (2020-11-05)
+### Features Added
+* Add `Telemetry()` method to `azcore.Request()`
+
+
+## 0.13.0 (2020-10-14)
+### Features Added
+* Rename `log` to `logger` to avoid name collision with the log package.
+* Documentation improvements
+* Simplified `DefaultHTTPClientTransport()` implementation
+
+
+## 0.12.1 (2020-10-13)
+### Features Added
+* Update `internal` module dependence to `v0.5.0`
+
+
+## 0.12.0 (2020-10-08)
+### Features Added
+* Removed storage specific content
+* Removed internal content to prevent API clutter
+* Refactored various policy options to conform with our options pattern
+
+
+## 0.11.0 (2020-09-22)
+### Features Added
+
+* Removed `LogError` and `LogSlowResponse`.
+* Renamed `options` in `RequestLogOptions`.
+* Updated `NewRequestLogPolicy()` to follow standard pattern for options.
+* Refactored `requestLogPolicy.Do()` per above changes.
+* Cleaned up/added logging in retry policy.
+* Export `NewResponseError()`
+* Fix `RequestLogOptions` comment
+
+
+## 0.10.1 (2020-09-17)
+### Features Added
+* Add default console logger
+* Default console logger writes to stderr. To enable it, set env var `AZURE_SDK_GO_LOGGING` to the value 'all'.
+* Added `Logger.Writef()` to reduce the need for `ShouldLog()` checks.
+* Add `LogLongRunningOperation`
+
+
+## 0.10.0 (2020-09-10)
+### Features Added
+* The `request` and `transport` interfaces have been refactored to align with the patterns in the standard library.
+* `NewRequest()` now uses `http.NewRequestWithContext()` and performs additional validation, it also requires a context parameter.
+* The `Policy` and `Transport` interfaces have had their context parameter removed as the context is associated with the underlying `http.Request`.
+* `Pipeline.Do()` will validate the HTTP request before sending it through the pipeline, avoiding retries on a malformed request.
+* The `Retrier` interface has been replaced with the `NonRetriableError` interface, and the retry policy updated to test for this.
+* `Request.SetBody()` now requires a content type parameter for setting the request's MIME type.
+* moved path concatenation into `JoinPaths()` func
+
+
+## 0.9.6 (2020-08-18)
+### Features Added
+* Improvements to body download policy
+* Always download the response body for error responses, i.e. HTTP status codes >= 400.
+* Simplify variable declarations
+
+
+## 0.9.5 (2020-08-11)
+### Features Added
+* Set the Content-Length header in `Request.SetBody`
+
+
+## 0.9.4 (2020-08-03)
+### Features Added
+* Fix cancellation of per try timeout
+* Per try timeout is used to ensure that an HTTP operation doesn't take too long, e.g. that a GET on some URL doesn't take an inordinant amount of time.
+* Once the HTTP request returns, the per try timeout should be cancelled, not when the response has been read to completion.
+* Do not drain response body if there are no more retries
+* Do not retry non-idempotent operations when body download fails
+
+
+## 0.9.3 (2020-07-28)
+### Features Added
+* Add support for custom HTTP request headers
+* Inserts an internal policy into the pipeline that can extract HTTP header values from the caller's context, adding them to the request.
+* Use `azcore.WithHTTPHeader` to add HTTP headers to a context.
+* Remove method specific to Go 1.14
+
+
+## 0.9.2 (2020-07-28)
+### Features Added
+* Omit read-only content from request payloads
+* If any field in a payload's object graph contains `azure:"ro"`, make a clone of the object graph, omitting all fields with this annotation.
+* Verify no fields were dropped
+* Handle embedded struct types
+* Added test for cloning by value
+* Add messages to failures
+
+
+## 0.9.1 (2020-07-22)
+### Features Added
+* Updated dependency on internal module to fix race condition.
+
+
+## 0.9.0 (2020-07-09)
+### Features Added
+* Add `HTTPResponse` interface to be used by callers to access the raw HTTP response from an error in the event of an API call failure.
+* Updated `sdk/internal` dependency to latest version.
+* Rename package alias
+
+
+## 0.8.2 (2020-06-29)
+### Features Added
+* Added missing documentation comments
+
+### Bugs Fixed
+* Fixed a bug in body download policy.
+
+
+## 0.8.1 (2020-06-26)
+### Features Added
+* Miscellaneous clean-up reported by linters
+
+
+## 0.8.0 (2020-06-01)
+### Features Added
+* Differentiate between standard and URL encoding.
+
+
+## 0.7.1 (2020-05-27)
+### Features Added
+* Add support for for base64 encoding and decoding of payloads.
+
+
+## 0.7.0 (2020-05-12)
+### Features Added
+* Change `RetryAfter()` to a function.
+
+
+## 0.6.0 (2020-04-29)
+### Features Added
+* Updating `RetryAfter` to only return the detaion in the RetryAfter header
+
+
+## 0.5.0 (2020-03-23)
+### Features Added
+* Export `TransportFunc`
+
+### Breaking Changes
+* Removed `IterationDone`
+
+
+## 0.4.1 (2020-02-25)
+### Features Added
+* Ensure per-try timeout is properly cancelled
+* Explicitly call cancel the per-try timeout when the response body has been read/closed by the body download policy.
+* When the response body is returned to the caller for reading/closing, wrap it in a `responseBodyReader` that will cancel the timeout when the body is closed.
+* `Logger.Should()` will return false if no listener is set.
+
+
+## 0.4.0 (2020-02-18)
+### Features Added
+* Enable custom `RetryOptions` to be specified per API call
+* Added `WithRetryOptions()` that adds a custom `RetryOptions` to the provided context, allowing custom settings per API call.
+* Remove 429 from the list of default HTTP status codes for retry.
+* Change StatusCodesForRetry to a slice so consumers can append to it.
+* Added support for retry-after in HTTP-date format.
+* Cleaned up some comments specific to storage.
+* Remove `Request.SetQueryParam()`
+* Renamed `MaxTries` to `MaxRetries`
+
+## 0.3.0 (2020-01-16)
+### Features Added
+* Added `DefaultRetryOptions` to create initialized default options.
+
+### Breaking Changes
+* Removed `Response.CheckStatusCode()`
+
+
+## 0.2.0 (2020-01-15)
+### Features Added
+* Add support for marshalling and unmarshalling JSON
+* Removed `Response.Payload` field
+* Exit early when unmarsahlling if there is no payload
+
+
+## 0.1.0 (2020-01-10)
+### Features Added
+* Initial release

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/LICENSE.txt

@@ -1,6 +1,6 @@
-The MIT License (MIT)
+MIT License
 
-Copyright (c) 2021 Microsoft
+Copyright (c) Microsoft Corporation.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -18,4 +18,4 @@ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+SOFTWARE

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/README.md

@@ -0,0 +1,39 @@
+# Azure Core Client Module for Go
+
+[![PkgGoDev](https://pkg.go.dev/badge/github.com/Azure/azure-sdk-for-go/sdk/azcore)](https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/azcore)
+[![Build Status](https://dev.azure.com/azure-sdk/public/_apis/build/status/go/go%20-%20azcore%20-%20ci?branchName=main)](https://dev.azure.com/azure-sdk/public/_build/latest?definitionId=1843&branchName=main)
+[![Code Coverage](https://img.shields.io/azure-devops/coverage/azure-sdk/public/1843/main)](https://img.shields.io/azure-devops/coverage/azure-sdk/public/1843/main)
+
+The `azcore` module provides a set of common interfaces and types for Go SDK client modules.
+These modules follow the [Azure SDK Design Guidelines for Go](https://azure.github.io/azure-sdk/golang_introduction.html).
+
+## Getting started
+
+This project uses [Go modules](https://github.com/golang/go/wiki/Modules) for versioning and dependency management.
+
+Typically, you will not need to explicitly install `azcore` as it will be installed as a client module dependency.
+To add the latest version to your `go.mod` file, execute the following command.
+
+```bash
+go get github.com/Azure/azure-sdk-for-go/sdk/azcore
+```
+
+General documentation and examples can be found on [pkg.go.dev](https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/azcore).
+
+## Contributing
+This project welcomes contributions and suggestions. Most contributions require
+you to agree to a Contributor License Agreement (CLA) declaring that you have
+the right to, and actually do, grant us the rights to use your contribution.
+For details, visit [https://cla.microsoft.com](https://cla.microsoft.com).
+
+When you submit a pull request, a CLA-bot will automatically determine whether
+you need to provide a CLA and decorate the PR appropriately (e.g., label,
+comment). Simply follow the instructions provided by the bot. You will only
+need to do this once across all repos using our CLA.
+
+This project has adopted the
+[Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/).
+For more information, see the
+[Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/)
+or contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any
+additional questions or comments.

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/ci.yml

@@ -0,0 +1,29 @@
+# NOTE: Please refer to https://aka.ms/azsdk/engsys/ci-yaml before editing this file.
+trigger:
+  branches:
+    include:
+      - main
+      - feature/*
+      - hotfix/*
+      - release/*
+  paths:
+    include:
+    - sdk/azcore/
+    - eng/
+
+pr:
+  branches:
+    include:
+      - main
+      - feature/*
+      - hotfix/*
+      - release/*
+  paths:
+    include:
+    - sdk/azcore/
+    - eng/
+
+stages:
+- template: /eng/pipelines/templates/jobs/archetype-sdk-client.yml
+  parameters:
+    ServiceDirectory: azcore

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/cloud/cloud.go

@@ -0,0 +1,44 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package cloud
+
+var (
+	// AzureChina contains configuration for Azure China.
+	AzureChina = Configuration{
+		ActiveDirectoryAuthorityHost: "https://login.chinacloudapi.cn/", Services: map[ServiceName]ServiceConfiguration{},
+	}
+	// AzureGovernment contains configuration for Azure Government.
+	AzureGovernment = Configuration{
+		ActiveDirectoryAuthorityHost: "https://login.microsoftonline.us/", Services: map[ServiceName]ServiceConfiguration{},
+	}
+	// AzurePublic contains configuration for Azure Public Cloud.
+	AzurePublic = Configuration{
+		ActiveDirectoryAuthorityHost: "https://login.microsoftonline.com/", Services: map[ServiceName]ServiceConfiguration{},
+	}
+)
+
+// ServiceName identifies a cloud service.
+type ServiceName string
+
+// ResourceManager is a global constant identifying Azure Resource Manager.
+const ResourceManager ServiceName = "resourceManager"
+
+// ServiceConfiguration configures a specific cloud service such as Azure Resource Manager.
+type ServiceConfiguration struct {
+	// Audience is the audience the client will request for its access tokens.
+	Audience string
+	// Endpoint is the service's base URL.
+	Endpoint string
+}
+
+// Configuration configures a cloud.
+type Configuration struct {
+	// ActiveDirectoryAuthorityHost is the base URL of the cloud's Azure Active Directory.
+	ActiveDirectoryAuthorityHost string
+	// Services contains configuration for the cloud's services.
+	Services map[ServiceName]ServiceConfiguration
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/cloud/doc.go

@@ -0,0 +1,53 @@
+//go:build go1.16
+// +build go1.16
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+/*
+Package cloud implements a configuration API for applications deployed to sovereign or private Azure clouds.
+
+Azure SDK client configuration defaults are appropriate for Azure Public Cloud (sometimes referred to as
+"Azure Commercial" or simply "Microsoft Azure"). This package enables applications deployed to other
+Azure Clouds to configure clients appropriately.
+
+This package contains predefined configuration for well-known sovereign clouds such as Azure Government and
+Azure China. Azure SDK clients accept this configuration via the Cloud field of azcore.ClientOptions. For
+example, configuring a credential and ARM client for Azure Government:
+
+	opts := azcore.ClientOptions{Cloud: cloud.AzureGovernment}
+	cred, err := azidentity.NewDefaultAzureCredential(
+		&azidentity.DefaultAzureCredentialOptions{ClientOptions: opts},
+	)
+	handle(err)
+
+	client, err := armsubscription.NewClient(
+		cred, &arm.ClientOptions{ClientOptions: opts},
+	)
+	handle(err)
+
+Applications deployed to a private cloud such as Azure Stack create a Configuration object with
+appropriate values:
+
+	c := cloud.Configuration{
+		ActiveDirectoryAuthorityHost: "https://...",
+		Services: map[cloud.ServiceName]cloud.ServiceConfiguration{
+			cloud.ResourceManager: {
+				Audience: "...",
+				Endpoint: "https://...",
+			},
+		},
+	}
+	opts := azcore.ClientOptions{Cloud: c}
+
+	cred, err := azidentity.NewDefaultAzureCredential(
+		&azidentity.DefaultAzureCredentialOptions{ClientOptions: opts},
+	)
+	handle(err)
+
+	client, err := armsubscription.NewClient(
+		cred, &arm.ClientOptions{ClientOptions: opts},
+	)
+	handle(err)
+*/
+package cloud

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/core.go

@@ -0,0 +1,113 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package azcore
+
+import (
+	"reflect"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/exported"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/shared"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/tracing"
+)
+
+// AccessToken represents an Azure service bearer access token with expiry information.
+type AccessToken = exported.AccessToken
+
+// TokenCredential represents a credential capable of providing an OAuth token.
+type TokenCredential = exported.TokenCredential
+
+// holds sentinel values used to send nulls
+var nullables map[reflect.Type]interface{} = map[reflect.Type]interface{}{}
+
+// NullValue is used to send an explicit 'null' within a request.
+// This is typically used in JSON-MERGE-PATCH operations to delete a value.
+func NullValue[T any]() T {
+	t := shared.TypeOfT[T]()
+	v, found := nullables[t]
+	if !found {
+		var o reflect.Value
+		if k := t.Kind(); k == reflect.Map {
+			o = reflect.MakeMap(t)
+		} else if k == reflect.Slice {
+			// empty slices appear to all point to the same data block
+			// which causes comparisons to become ambiguous.  so we create
+			// a slice with len/cap of one which ensures a unique address.
+			o = reflect.MakeSlice(t, 1, 1)
+		} else {
+			o = reflect.New(t.Elem())
+		}
+		v = o.Interface()
+		nullables[t] = v
+	}
+	// return the sentinel object
+	return v.(T)
+}
+
+// IsNullValue returns true if the field contains a null sentinel value.
+// This is used by custom marshallers to properly encode a null value.
+func IsNullValue[T any](v T) bool {
+	// see if our map has a sentinel object for this *T
+	t := reflect.TypeOf(v)
+	if o, found := nullables[t]; found {
+		o1 := reflect.ValueOf(o)
+		v1 := reflect.ValueOf(v)
+		// we found it; return true if v points to the sentinel object.
+		// NOTE: maps and slices can only be compared to nil, else you get
+		// a runtime panic.  so we compare addresses instead.
+		return o1.Pointer() == v1.Pointer()
+	}
+	// no sentinel object for this *t
+	return false
+}
+
+// ClientOptions contains configuration settings for a client's pipeline.
+type ClientOptions = policy.ClientOptions
+
+// Client is a basic HTTP client.  It consists of a pipeline and tracing provider.
+type Client struct {
+	pl runtime.Pipeline
+	tr tracing.Tracer
+}
+
+// NewClient creates a new Client instance with the provided values.
+//   - clientName - the fully qualified name of the client ("package.Client"); this is used by the tracing provider when creating spans
+//   - moduleVersion - the semantic version of the containing module; used by the telemetry policy
+//   - plOpts - pipeline configuration options; can be the zero-value
+//   - options - optional client configurations; pass nil to accept the default values
+func NewClient(clientName, moduleVersion string, plOpts runtime.PipelineOptions, options *ClientOptions) (*Client, error) {
+	pkg, err := shared.ExtractPackageName(clientName)
+	if err != nil {
+		return nil, err
+	}
+
+	if options == nil {
+		options = &ClientOptions{}
+	}
+
+	if !options.Telemetry.Disabled {
+		if err := shared.ValidateModVer(moduleVersion); err != nil {
+			return nil, err
+		}
+	}
+
+	pl := runtime.NewPipeline(pkg, moduleVersion, plOpts, options)
+
+	tr := options.TracingProvider.NewTracer(clientName, moduleVersion)
+	return &Client{pl: pl, tr: tr}, nil
+}
+
+// Pipeline returns the pipeline for this client.
+func (c *Client) Pipeline() runtime.Pipeline {
+	return c.pl
+}
+
+// Tracer returns the tracer for this client.
+func (c *Client) Tracer() tracing.Tracer {
+	return c.tr
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/doc.go

@@ -0,0 +1,257 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright 2017 Microsoft Corporation. All rights reserved.
+// Use of this source code is governed by an MIT
+// license that can be found in the LICENSE file.
+
+/*
+Package azcore implements an HTTP request/response middleware pipeline used by Azure SDK clients.
+
+The middleware consists of three components.
+
+  - One or more Policy instances.
+  - A Transporter instance.
+  - A Pipeline instance that combines the Policy and Transporter instances.
+
+# Implementing the Policy Interface
+
+A Policy can be implemented in two ways; as a first-class function for a stateless Policy, or as
+a method on a type for a stateful Policy.  Note that HTTP requests made via the same pipeline share
+the same Policy instances, so if a Policy mutates its state it MUST be properly synchronized to
+avoid race conditions.
+
+A Policy's Do method is called when an HTTP request wants to be sent over the network. The Do method can
+perform any operation(s) it desires. For example, it can log the outgoing request, mutate the URL, headers,
+and/or query parameters, inject a failure, etc.  Once the Policy has successfully completed its request
+work, it must call the Next() method on the *policy.Request instance in order to pass the request to the
+next Policy in the chain.
+
+When an HTTP response comes back, the Policy then gets a chance to process the response/error.  The Policy instance
+can log the response, retry the operation if it failed due to a transient error or timeout, unmarshal the response
+body, etc.  Once the Policy has successfully completed its response work, it must return the *http.Response
+and error instances to its caller.
+
+Template for implementing a stateless Policy:
+
+	type policyFunc func(*policy.Request) (*http.Response, error)
+
+	// Do implements the Policy interface on policyFunc.
+	func (pf policyFunc) Do(req *policy.Request) (*http.Response, error) {
+		return pf(req)
+	}
+
+	func NewMyStatelessPolicy() policy.Policy {
+		return policyFunc(func(req *policy.Request) (*http.Response, error) {
+			// TODO: mutate/process Request here
+
+			// forward Request to next Policy & get Response/error
+			resp, err := req.Next()
+
+			// TODO: mutate/process Response/error here
+
+			// return Response/error to previous Policy
+			return resp, err
+		})
+	}
+
+Template for implementing a stateful Policy:
+
+	type MyStatefulPolicy struct {
+		// TODO: add configuration/setting fields here
+	}
+
+	// TODO: add initialization args to NewMyStatefulPolicy()
+	func NewMyStatefulPolicy() policy.Policy {
+		return &MyStatefulPolicy{
+			// TODO: initialize configuration/setting fields here
+		}
+	}
+
+	func (p *MyStatefulPolicy) Do(req *policy.Request) (resp *http.Response, err error) {
+		// TODO: mutate/process Request here
+
+		// forward Request to next Policy & get Response/error
+		resp, err := req.Next()
+
+		// TODO: mutate/process Response/error here
+
+		// return Response/error to previous Policy
+		return resp, err
+	}
+
+# Implementing the Transporter Interface
+
+The Transporter interface is responsible for sending the HTTP request and returning the corresponding
+HTTP response or error.  The Transporter is invoked by the last Policy in the chain.  The default Transporter
+implementation uses a shared http.Client from the standard library.
+
+The same stateful/stateless rules for Policy implementations apply to Transporter implementations.
+
+# Using Policy and Transporter Instances Via a Pipeline
+
+To use the Policy and Transporter instances, an application passes them to the runtime.NewPipeline function.
+
+	func NewPipeline(transport Transporter, policies ...Policy) Pipeline
+
+The specified Policy instances form a chain and are invoked in the order provided to NewPipeline
+followed by the Transporter.
+
+Once the Pipeline has been created, create a runtime.Request instance and pass it to Pipeline's Do method.
+
+	func NewRequest(ctx context.Context, httpMethod string, endpoint string) (*Request, error)
+
+	func (p Pipeline) Do(req *Request) (*http.Request, error)
+
+The Pipeline.Do method sends the specified Request through the chain of Policy and Transporter
+instances.  The response/error is then sent through the same chain of Policy instances in reverse
+order.  For example, assuming there are Policy types PolicyA, PolicyB, and PolicyC along with
+TransportA.
+
+	pipeline := NewPipeline(TransportA, PolicyA, PolicyB, PolicyC)
+
+The flow of Request and Response looks like the following:
+
+	policy.Request -> PolicyA -> PolicyB -> PolicyC -> TransportA -----+
+	                                                                   |
+	                                                            HTTP(S) endpoint
+	                                                                   |
+	caller <--------- PolicyA <- PolicyB <- PolicyC <- http.Response-+
+
+# Creating a Request Instance
+
+The Request instance passed to Pipeline's Do method is a wrapper around an *http.Request.  It also
+contains some internal state and provides various convenience methods.  You create a Request instance
+by calling the runtime.NewRequest function:
+
+	func NewRequest(ctx context.Context, httpMethod string, endpoint string) (*Request, error)
+
+If the Request should contain a body, call the SetBody method.
+
+	func (req *Request) SetBody(body ReadSeekCloser, contentType string) error
+
+A seekable stream is required so that upon retry, the retry Policy instance can seek the stream
+back to the beginning before retrying the network request and re-uploading the body.
+
+# Sending an Explicit Null
+
+Operations like JSON-MERGE-PATCH send a JSON null to indicate a value should be deleted.
+
+	{
+		"delete-me": null
+	}
+
+This requirement conflicts with the SDK's default marshalling that specifies "omitempty" as
+a means to resolve the ambiguity between a field to be excluded and its zero-value.
+
+	type Widget struct {
+		Name  *string `json:",omitempty"`
+		Count *int    `json:",omitempty"`
+	}
+
+In the above example, Name and Count are defined as pointer-to-type to disambiguate between
+a missing value (nil) and a zero-value (0) which might have semantic differences.
+
+In a PATCH operation, any fields left as nil are to have their values preserved.  When updating
+a Widget's count, one simply specifies the new value for Count, leaving Name nil.
+
+To fulfill the requirement for sending a JSON null, the NullValue() function can be used.
+
+	w := Widget{
+		Count: azcore.NullValue[*int](),
+	}
+
+This sends an explict "null" for Count, indicating that any current value for Count should be deleted.
+
+# Processing the Response
+
+When the HTTP response is received, the *http.Response is returned directly. Each Policy instance
+can inspect/mutate the *http.Response.
+
+# Built-in Logging
+
+To enable logging, set environment variable AZURE_SDK_GO_LOGGING to "all" before executing your program.
+
+By default the logger writes to stderr.  This can be customized by calling log.SetListener, providing
+a callback that writes to the desired location.  Any custom logging implementation MUST provide its
+own synchronization to handle concurrent invocations.
+
+See the docs for the log package for further details.
+
+# Pageable Operations
+
+Pageable operations return potentially large data sets spread over multiple GET requests.  The result of
+each GET is a "page" of data consisting of a slice of items.
+
+Pageable operations can be identified by their New*Pager naming convention and return type of *runtime.Pager[T].
+
+	func (c *WidgetClient) NewListWidgetsPager(o *Options) *runtime.Pager[PageResponse]
+
+The call to WidgetClient.NewListWidgetsPager() returns an instance of *runtime.Pager[T] for fetching pages
+and determining if there are more pages to fetch.  No IO calls are made until the NextPage() method is invoked.
+
+	pager := widgetClient.NewListWidgetsPager(nil)
+	for pager.More() {
+		page, err := pager.NextPage(context.TODO())
+		// handle err
+		for _, widget := range page.Values {
+			// process widget
+		}
+	}
+
+# Long-Running Operations
+
+Long-running operations (LROs) are operations consisting of an initial request to start the operation followed
+by polling to determine when the operation has reached a terminal state.  An LRO's terminal state is one
+of the following values.
+
+  - Succeeded - the LRO completed successfully
+  - Failed - the LRO failed to complete
+  - Canceled - the LRO was canceled
+
+LROs can be identified by their Begin* prefix and their return type of *runtime.Poller[T].
+
+	func (c *WidgetClient) BeginCreateOrUpdate(ctx context.Context, w Widget, o *Options) (*runtime.Poller[Response], error)
+
+When a call to WidgetClient.BeginCreateOrUpdate() returns a nil error, it means that the LRO has started.
+It does _not_ mean that the widget has been created or updated (or failed to be created/updated).
+
+The *runtime.Poller[T] provides APIs for determining the state of the LRO.  To wait for the LRO to complete,
+call the PollUntilDone() method.
+
+	poller, err := widgetClient.BeginCreateOrUpdate(context.TODO(), Widget{}, nil)
+	// handle err
+	result, err := poller.PollUntilDone(context.TODO(), nil)
+	// handle err
+	// use result
+
+The call to PollUntilDone() will block the current goroutine until the LRO has reached a terminal state or the
+context is canceled/timed out.
+
+Note that LROs can take anywhere from several seconds to several minutes.  The duration is operation-dependent.  Due to
+this variant behavior, pollers do _not_ have a preconfigured time-out.  Use a context with the appropriate cancellation
+mechanism as required.
+
+# Resume Tokens
+
+Pollers provide the ability to serialize their state into a "resume token" which can be used by another process to
+recreate the poller.  This is achieved via the runtime.Poller[T].ResumeToken() method.
+
+	token, err := poller.ResumeToken()
+	// handle error
+
+Note that a token can only be obtained for a poller that's in a non-terminal state.  Also note that any subsequent calls
+to poller.Poll() might change the poller's state.  In this case, a new token should be created.
+
+After the token has been obtained, it can be used to recreate an instance of the originating poller.
+
+	poller, err := widgetClient.BeginCreateOrUpdate(nil, Widget{}, &Options{
+		ResumeToken: token,
+	})
+
+When resuming a poller, no IO is performed, and zero-value arguments can be used for everything but the Options.ResumeToken.
+
+Resume tokens are unique per service client and operation.  Attempting to resume a poller for LRO BeginB() with a token from LRO
+BeginA() will result in an error.
+*/
+package azcore

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/errors.go

@@ -0,0 +1,14 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package azcore
+
+import "github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/exported"
+
+// ResponseError is returned when a request is made to a service and
+// the service returns a non-success HTTP status code.
+// Use errors.As() to access this type in the error chain.
+type ResponseError = exported.ResponseError

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/etag.go

@@ -0,0 +1,48 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package azcore
+
+import (
+	"strings"
+)
+
+// ETag is a property used for optimistic concurrency during updates
+// ETag is a validator based on https://tools.ietf.org/html/rfc7232#section-2.3.2
+// An ETag can be empty ("").
+type ETag string
+
+// ETagAny is an ETag that represents everything, the value is "*"
+const ETagAny ETag = "*"
+
+// Equals does a strong comparison of two ETags. Equals returns true when both
+// ETags are not weak and the values of the underlying strings are equal.
+func (e ETag) Equals(other ETag) bool {
+	return !e.IsWeak() && !other.IsWeak() && e == other
+}
+
+// WeakEquals does a weak comparison of two ETags. Two ETags are equivalent if their opaque-tags match
+// character-by-character, regardless of either or both being tagged as "weak".
+func (e ETag) WeakEquals(other ETag) bool {
+	getStart := func(e1 ETag) int {
+		if e1.IsWeak() {
+			return 2
+		}
+		return 0
+	}
+	aStart := getStart(e)
+	bStart := getStart(other)
+
+	aVal := e[aStart:]
+	bVal := other[bStart:]
+
+	return aVal == bVal
+}
+
+// IsWeak specifies whether the ETag is strong or weak.
+func (e ETag) IsWeak() bool {
+	return len(e) >= 4 && strings.HasPrefix(string(e), "W/\"") && strings.HasSuffix(string(e), "\"")
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/exported/exported.go

@@ -0,0 +1,83 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package exported
+
+import (
+	"context"
+	"io"
+	"net/http"
+	"time"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/shared"
+)
+
+type nopCloser struct {
+	io.ReadSeeker
+}
+
+func (n nopCloser) Close() error {
+	return nil
+}
+
+// NopCloser returns a ReadSeekCloser with a no-op close method wrapping the provided io.ReadSeeker.
+// Exported as streaming.NopCloser().
+func NopCloser(rs io.ReadSeeker) io.ReadSeekCloser {
+	return nopCloser{rs}
+}
+
+// HasStatusCode returns true if the Response's status code is one of the specified values.
+// Exported as runtime.HasStatusCode().
+func HasStatusCode(resp *http.Response, statusCodes ...int) bool {
+	if resp == nil {
+		return false
+	}
+	for _, sc := range statusCodes {
+		if resp.StatusCode == sc {
+			return true
+		}
+	}
+	return false
+}
+
+// Payload reads and returns the response body or an error.
+// On a successful read, the response body is cached.
+// Subsequent reads will access the cached value.
+// Exported as runtime.Payload().
+func Payload(resp *http.Response) ([]byte, error) {
+	// r.Body won't be a nopClosingBytesReader if downloading was skipped
+	if buf, ok := resp.Body.(*shared.NopClosingBytesReader); ok {
+		return buf.Bytes(), nil
+	}
+	bytesBody, err := io.ReadAll(resp.Body)
+	resp.Body.Close()
+	if err != nil {
+		return nil, err
+	}
+	resp.Body = shared.NewNopClosingBytesReader(bytesBody)
+	return bytesBody, nil
+}
+
+// AccessToken represents an Azure service bearer access token with expiry information.
+// Exported as azcore.AccessToken.
+type AccessToken struct {
+	Token     string
+	ExpiresOn time.Time
+}
+
+// TokenRequestOptions contain specific parameter that may be used by credentials types when attempting to get a token.
+// Exported as policy.TokenRequestOptions.
+type TokenRequestOptions struct {
+	// Scopes contains the list of permission scopes required for the token.
+	Scopes []string
+}
+
+// TokenCredential represents a credential capable of providing an OAuth token.
+// Exported as azcore.TokenCredential.
+type TokenCredential interface {
+	// GetToken requests an access token for the specified set of scopes.
+	GetToken(ctx context.Context, options TokenRequestOptions) (AccessToken, error)
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/exported/pipeline.go

@@ -0,0 +1,97 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package exported
+
+import (
+	"errors"
+	"fmt"
+	"net/http"
+
+	"golang.org/x/net/http/httpguts"
+)
+
+// Policy represents an extensibility point for the Pipeline that can mutate the specified
+// Request and react to the received Response.
+// Exported as policy.Policy.
+type Policy interface {
+	// Do applies the policy to the specified Request.  When implementing a Policy, mutate the
+	// request before calling req.Next() to move on to the next policy, and respond to the result
+	// before returning to the caller.
+	Do(req *Request) (*http.Response, error)
+}
+
+// Pipeline represents a primitive for sending HTTP requests and receiving responses.
+// Its behavior can be extended by specifying policies during construction.
+// Exported as runtime.Pipeline.
+type Pipeline struct {
+	policies []Policy
+}
+
+// Transporter represents an HTTP pipeline transport used to send HTTP requests and receive responses.
+// Exported as policy.Transporter.
+type Transporter interface {
+	// Do sends the HTTP request and returns the HTTP response or error.
+	Do(req *http.Request) (*http.Response, error)
+}
+
+// used to adapt a TransportPolicy to a Policy
+type transportPolicy struct {
+	trans Transporter
+}
+
+func (tp transportPolicy) Do(req *Request) (*http.Response, error) {
+	if tp.trans == nil {
+		return nil, errors.New("missing transporter")
+	}
+	resp, err := tp.trans.Do(req.Raw())
+	if err != nil {
+		return nil, err
+	} else if resp == nil {
+		// there was no response and no error (rare but can happen)
+		// this ensures the retry policy will retry the request
+		return nil, errors.New("received nil response")
+	}
+	return resp, nil
+}
+
+// NewPipeline creates a new Pipeline object from the specified Policies.
+// Not directly exported, but used as part of runtime.NewPipeline().
+func NewPipeline(transport Transporter, policies ...Policy) Pipeline {
+	// transport policy must always be the last in the slice
+	policies = append(policies, transportPolicy{trans: transport})
+	return Pipeline{
+		policies: policies,
+	}
+}
+
+// Do is called for each and every HTTP request. It passes the request through all
+// the Policy objects (which can transform the Request's URL/query parameters/headers)
+// and ultimately sends the transformed HTTP request over the network.
+func (p Pipeline) Do(req *Request) (*http.Response, error) {
+	if req == nil {
+		return nil, errors.New("request cannot be nil")
+	}
+	// check copied from Transport.roundTrip()
+	for k, vv := range req.Raw().Header {
+		if !httpguts.ValidHeaderFieldName(k) {
+			if req.Raw().Body != nil {
+				req.Raw().Body.Close()
+			}
+			return nil, fmt.Errorf("invalid header field name %q", k)
+		}
+		for _, v := range vv {
+			if !httpguts.ValidHeaderFieldValue(v) {
+				if req.Raw().Body != nil {
+					req.Raw().Body.Close()
+				}
+				return nil, fmt.Errorf("invalid header field value %q for key %v", v, k)
+			}
+		}
+	}
+	req.policies = p.policies
+	return req.Next()
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/exported/request.go

@@ -0,0 +1,170 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package exported
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"reflect"
+	"strconv"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/shared"
+)
+
+// Request is an abstraction over the creation of an HTTP request as it passes through the pipeline.
+// Don't use this type directly, use NewRequest() instead.
+// Exported as policy.Request.
+type Request struct {
+	req      *http.Request
+	body     io.ReadSeekCloser
+	policies []Policy
+	values   opValues
+}
+
+type opValues map[reflect.Type]interface{}
+
+// Set adds/changes a value
+func (ov opValues) set(value interface{}) {
+	ov[reflect.TypeOf(value)] = value
+}
+
+// Get looks for a value set by SetValue first
+func (ov opValues) get(value interface{}) bool {
+	v, ok := ov[reflect.ValueOf(value).Elem().Type()]
+	if ok {
+		reflect.ValueOf(value).Elem().Set(reflect.ValueOf(v))
+	}
+	return ok
+}
+
+// NewRequest creates a new Request with the specified input.
+// Exported as runtime.NewRequest().
+func NewRequest(ctx context.Context, httpMethod string, endpoint string) (*Request, error) {
+	req, err := http.NewRequestWithContext(ctx, httpMethod, endpoint, nil)
+	if err != nil {
+		return nil, err
+	}
+	if req.URL.Host == "" {
+		return nil, errors.New("no Host in request URL")
+	}
+	if !(req.URL.Scheme == "http" || req.URL.Scheme == "https") {
+		return nil, fmt.Errorf("unsupported protocol scheme %s", req.URL.Scheme)
+	}
+	return &Request{req: req}, nil
+}
+
+// Body returns the original body specified when the Request was created.
+func (req *Request) Body() io.ReadSeekCloser {
+	return req.body
+}
+
+// Raw returns the underlying HTTP request.
+func (req *Request) Raw() *http.Request {
+	return req.req
+}
+
+// Next calls the next policy in the pipeline.
+// If there are no more policies, nil and an error are returned.
+// This method is intended to be called from pipeline policies.
+// To send a request through a pipeline call Pipeline.Do().
+func (req *Request) Next() (*http.Response, error) {
+	if len(req.policies) == 0 {
+		return nil, errors.New("no more policies")
+	}
+	nextPolicy := req.policies[0]
+	nextReq := *req
+	nextReq.policies = nextReq.policies[1:]
+	return nextPolicy.Do(&nextReq)
+}
+
+// SetOperationValue adds/changes a mutable key/value associated with a single operation.
+func (req *Request) SetOperationValue(value interface{}) {
+	if req.values == nil {
+		req.values = opValues{}
+	}
+	req.values.set(value)
+}
+
+// OperationValue looks for a value set by SetOperationValue().
+func (req *Request) OperationValue(value interface{}) bool {
+	if req.values == nil {
+		return false
+	}
+	return req.values.get(value)
+}
+
+// SetBody sets the specified ReadSeekCloser as the HTTP request body, and sets Content-Type and Content-Length
+// accordingly. If the ReadSeekCloser is nil or empty, Content-Length won't be set. If contentType is "",
+// Content-Type won't be set.
+func (req *Request) SetBody(body io.ReadSeekCloser, contentType string) error {
+	var err error
+	var size int64
+	if body != nil {
+		size, err = body.Seek(0, io.SeekEnd) // Seek to the end to get the stream's size
+		if err != nil {
+			return err
+		}
+	}
+	if size == 0 {
+		// treat an empty stream the same as a nil one: assign req a nil body
+		body = nil
+		// RFC 9110 specifies a client shouldn't set Content-Length on a request containing no content
+		// (Del is a no-op when the header has no value)
+		req.req.Header.Del(shared.HeaderContentLength)
+	} else {
+		_, err = body.Seek(0, io.SeekStart)
+		if err != nil {
+			return err
+		}
+		req.req.Header.Set(shared.HeaderContentLength, strconv.FormatInt(size, 10))
+		req.Raw().GetBody = func() (io.ReadCloser, error) {
+			_, err := body.Seek(0, io.SeekStart) // Seek back to the beginning of the stream
+			return body, err
+		}
+	}
+	// keep a copy of the body argument.  this is to handle cases
+	// where req.Body is replaced, e.g. httputil.DumpRequest and friends.
+	req.body = body
+	req.req.Body = body
+	req.req.ContentLength = size
+	if contentType == "" {
+		// Del is a no-op when the header has no value
+		req.req.Header.Del(shared.HeaderContentType)
+	} else {
+		req.req.Header.Set(shared.HeaderContentType, contentType)
+	}
+	return nil
+}
+
+// RewindBody seeks the request's Body stream back to the beginning so it can be resent when retrying an operation.
+func (req *Request) RewindBody() error {
+	if req.body != nil {
+		// Reset the stream back to the beginning and restore the body
+		_, err := req.body.Seek(0, io.SeekStart)
+		req.req.Body = req.body
+		return err
+	}
+	return nil
+}
+
+// Close closes the request body.
+func (req *Request) Close() error {
+	if req.body == nil {
+		return nil
+	}
+	return req.body.Close()
+}
+
+// Clone returns a deep copy of the request with its context changed to ctx.
+func (req *Request) Clone(ctx context.Context) *Request {
+	r2 := *req
+	r2.req = req.req.Clone(ctx)
+	return &r2
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/exported/response_error.go

@@ -0,0 +1,142 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package exported
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"regexp"
+)
+
+// NewResponseError creates a new *ResponseError from the provided HTTP response.
+// Exported as runtime.NewResponseError().
+func NewResponseError(resp *http.Response) error {
+	respErr := &ResponseError{
+		StatusCode:  resp.StatusCode,
+		RawResponse: resp,
+	}
+
+	// prefer the error code in the response header
+	if ec := resp.Header.Get("x-ms-error-code"); ec != "" {
+		respErr.ErrorCode = ec
+		return respErr
+	}
+
+	// if we didn't get x-ms-error-code, check in the response body
+	body, err := Payload(resp)
+	if err != nil {
+		return err
+	}
+
+	if len(body) > 0 {
+		if code := extractErrorCodeJSON(body); code != "" {
+			respErr.ErrorCode = code
+		} else if code := extractErrorCodeXML(body); code != "" {
+			respErr.ErrorCode = code
+		}
+	}
+
+	return respErr
+}
+
+func extractErrorCodeJSON(body []byte) string {
+	var rawObj map[string]interface{}
+	if err := json.Unmarshal(body, &rawObj); err != nil {
+		// not a JSON object
+		return ""
+	}
+
+	// check if this is a wrapped error, i.e. { "error": { ... } }
+	// if so then unwrap it
+	if wrapped, ok := rawObj["error"]; ok {
+		unwrapped, ok := wrapped.(map[string]interface{})
+		if !ok {
+			return ""
+		}
+		rawObj = unwrapped
+	} else if wrapped, ok := rawObj["odata.error"]; ok {
+		// check if this a wrapped odata error, i.e. { "odata.error": { ... } }
+		unwrapped, ok := wrapped.(map[string]any)
+		if !ok {
+			return ""
+		}
+		rawObj = unwrapped
+	}
+
+	// now check for the error code
+	code, ok := rawObj["code"]
+	if !ok {
+		return ""
+	}
+	codeStr, ok := code.(string)
+	if !ok {
+		return ""
+	}
+	return codeStr
+}
+
+func extractErrorCodeXML(body []byte) string {
+	// regular expression is much easier than dealing with the XML parser
+	rx := regexp.MustCompile(`<(?:\w+:)?[c|C]ode>\s*(\w+)\s*<\/(?:\w+:)?[c|C]ode>`)
+	res := rx.FindStringSubmatch(string(body))
+	if len(res) != 2 {
+		return ""
+	}
+	// first submatch is the entire thing, second one is the captured error code
+	return res[1]
+}
+
+// ResponseError is returned when a request is made to a service and
+// the service returns a non-success HTTP status code.
+// Use errors.As() to access this type in the error chain.
+// Exported as azcore.ResponseError.
+type ResponseError struct {
+	// ErrorCode is the error code returned by the resource provider if available.
+	ErrorCode string
+
+	// StatusCode is the HTTP status code as defined in https://pkg.go.dev/net/http#pkg-constants.
+	StatusCode int
+
+	// RawResponse is the underlying HTTP response.
+	RawResponse *http.Response
+}
+
+// Error implements the error interface for type ResponseError.
+// Note that the message contents are not contractual and can change over time.
+func (e *ResponseError) Error() string {
+	// write the request method and URL with response status code
+	msg := &bytes.Buffer{}
+	fmt.Fprintf(msg, "%s %s://%s%s\n", e.RawResponse.Request.Method, e.RawResponse.Request.URL.Scheme, e.RawResponse.Request.URL.Host, e.RawResponse.Request.URL.Path)
+	fmt.Fprintln(msg, "--------------------------------------------------------------------------------")
+	fmt.Fprintf(msg, "RESPONSE %d: %s\n", e.RawResponse.StatusCode, e.RawResponse.Status)
+	if e.ErrorCode != "" {
+		fmt.Fprintf(msg, "ERROR CODE: %s\n", e.ErrorCode)
+	} else {
+		fmt.Fprintln(msg, "ERROR CODE UNAVAILABLE")
+	}
+	fmt.Fprintln(msg, "--------------------------------------------------------------------------------")
+	body, err := Payload(e.RawResponse)
+	if err != nil {
+		// this really shouldn't fail at this point as the response
+		// body is already cached (it was read in NewResponseError)
+		fmt.Fprintf(msg, "Error reading response body: %v", err)
+	} else if len(body) > 0 {
+		if err := json.Indent(msg, body, "", "  "); err != nil {
+			// failed to pretty-print so just dump it verbatim
+			fmt.Fprint(msg, string(body))
+		}
+		// the standard library doesn't have a pretty-printer for XML
+		fmt.Fprintln(msg)
+	} else {
+		fmt.Fprintln(msg, "Response contained no body")
+	}
+	fmt.Fprintln(msg, "--------------------------------------------------------------------------------")
+
+	return msg.String()
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/log/log.go

@@ -0,0 +1,38 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+// This is an internal helper package to combine the complete logging APIs.
+package log
+
+import (
+	azlog "github.com/Azure/azure-sdk-for-go/sdk/azcore/log"
+	"github.com/Azure/azure-sdk-for-go/sdk/internal/log"
+)
+
+type Event = log.Event
+
+const (
+	EventRequest     = azlog.EventRequest
+	EventResponse    = azlog.EventResponse
+	EventRetryPolicy = azlog.EventRetryPolicy
+	EventLRO         = azlog.EventLRO
+)
+
+func Write(cls log.Event, msg string) {
+	log.Write(cls, msg)
+}
+
+func Writef(cls log.Event, format string, a ...interface{}) {
+	log.Writef(cls, format, a...)
+}
+
+func SetListener(lst func(Event, string)) {
+	log.SetListener(lst)
+}
+
+func Should(cls log.Event) bool {
+	return log.Should(cls)
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/pollers/async/async.go

@@ -0,0 +1,158 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package async
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"net/http"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/exported"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/log"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/pollers"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/shared"
+)
+
+// see https://github.com/Azure/azure-resource-manager-rpc/blob/master/v1.0/async-api-reference.md
+
+// Applicable returns true if the LRO is using Azure-AsyncOperation.
+func Applicable(resp *http.Response) bool {
+	return resp.Header.Get(shared.HeaderAzureAsync) != ""
+}
+
+// CanResume returns true if the token can rehydrate this poller type.
+func CanResume(token map[string]interface{}) bool {
+	_, ok := token["asyncURL"]
+	return ok
+}
+
+// Poller is an LRO poller that uses the Azure-AsyncOperation pattern.
+type Poller[T any] struct {
+	pl exported.Pipeline
+
+	resp *http.Response
+
+	// The URL from Azure-AsyncOperation header.
+	AsyncURL string `json:"asyncURL"`
+
+	// The URL from Location header.
+	LocURL string `json:"locURL"`
+
+	// The URL from the initial LRO request.
+	OrigURL string `json:"origURL"`
+
+	// The HTTP method from the initial LRO request.
+	Method string `json:"method"`
+
+	// The value of final-state-via from swagger, can be the empty string.
+	FinalState pollers.FinalStateVia `json:"finalState"`
+
+	// The LRO's current state.
+	CurState string `json:"state"`
+}
+
+// New creates a new Poller from the provided initial response and final-state type.
+// Pass nil for response to create an empty Poller for rehydration.
+func New[T any](pl exported.Pipeline, resp *http.Response, finalState pollers.FinalStateVia) (*Poller[T], error) {
+	if resp == nil {
+		log.Write(log.EventLRO, "Resuming Azure-AsyncOperation poller.")
+		return &Poller[T]{pl: pl}, nil
+	}
+	log.Write(log.EventLRO, "Using Azure-AsyncOperation poller.")
+	asyncURL := resp.Header.Get(shared.HeaderAzureAsync)
+	if asyncURL == "" {
+		return nil, errors.New("response is missing Azure-AsyncOperation header")
+	}
+	if !pollers.IsValidURL(asyncURL) {
+		return nil, fmt.Errorf("invalid polling URL %s", asyncURL)
+	}
+	// check for provisioning state.  if the operation is a RELO
+	// and terminates synchronously this will prevent extra polling.
+	// it's ok if there's no provisioning state.
+	state, _ := pollers.GetProvisioningState(resp)
+	if state == "" {
+		state = pollers.StatusInProgress
+	}
+	p := &Poller[T]{
+		pl:         pl,
+		resp:       resp,
+		AsyncURL:   asyncURL,
+		LocURL:     resp.Header.Get(shared.HeaderLocation),
+		OrigURL:    resp.Request.URL.String(),
+		Method:     resp.Request.Method,
+		FinalState: finalState,
+		CurState:   state,
+	}
+	return p, nil
+}
+
+// Done returns true if the LRO is in a terminal state.
+func (p *Poller[T]) Done() bool {
+	return pollers.IsTerminalState(p.CurState)
+}
+
+// Poll retrieves the current state of the LRO.
+func (p *Poller[T]) Poll(ctx context.Context) (*http.Response, error) {
+	err := pollers.PollHelper(ctx, p.AsyncURL, p.pl, func(resp *http.Response) (string, error) {
+		if !pollers.StatusCodeValid(resp) {
+			p.resp = resp
+			return "", exported.NewResponseError(resp)
+		}
+		state, err := pollers.GetStatus(resp)
+		if err != nil {
+			return "", err
+		} else if state == "" {
+			return "", errors.New("the response did not contain a status")
+		}
+		p.resp = resp
+		p.CurState = state
+		return p.CurState, nil
+	})
+	if err != nil {
+		return nil, err
+	}
+	return p.resp, nil
+}
+
+func (p *Poller[T]) Result(ctx context.Context, out *T) error {
+	if p.resp.StatusCode == http.StatusNoContent {
+		return nil
+	} else if pollers.Failed(p.CurState) {
+		return exported.NewResponseError(p.resp)
+	}
+	var req *exported.Request
+	var err error
+	if p.Method == http.MethodPatch || p.Method == http.MethodPut {
+		// for PATCH and PUT, the final GET is on the original resource URL
+		req, err = exported.NewRequest(ctx, http.MethodGet, p.OrigURL)
+	} else if p.Method == http.MethodPost {
+		if p.FinalState == pollers.FinalStateViaAzureAsyncOp {
+			// no final GET required
+		} else if p.FinalState == pollers.FinalStateViaOriginalURI {
+			req, err = exported.NewRequest(ctx, http.MethodGet, p.OrigURL)
+		} else if p.LocURL != "" {
+			// ideally FinalState would be set to "location" but it isn't always.
+			// must check last due to more permissive condition.
+			req, err = exported.NewRequest(ctx, http.MethodGet, p.LocURL)
+		}
+	}
+	if err != nil {
+		return err
+	}
+
+	// if a final GET request has been created, execute it
+	if req != nil {
+		resp, err := p.pl.Do(req)
+		if err != nil {
+			return err
+		}
+		p.resp = resp
+	}
+
+	return pollers.ResultHelper(p.resp, pollers.Failed(p.CurState), out)
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/pollers/body/body.go

@@ -0,0 +1,134 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package body
+
+import (
+	"context"
+	"errors"
+	"net/http"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/exported"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/log"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/pollers"
+)
+
+// Kind is the identifier of this type in a resume token.
+const kind = "body"
+
+// Applicable returns true if the LRO is using no headers, just provisioning state.
+// This is only applicable to PATCH and PUT methods and assumes no polling headers.
+func Applicable(resp *http.Response) bool {
+	// we can't check for absense of headers due to some misbehaving services
+	// like redis that return a Location header but don't actually use that protocol
+	return resp.Request.Method == http.MethodPatch || resp.Request.Method == http.MethodPut
+}
+
+// CanResume returns true if the token can rehydrate this poller type.
+func CanResume(token map[string]interface{}) bool {
+	t, ok := token["type"]
+	if !ok {
+		return false
+	}
+	tt, ok := t.(string)
+	if !ok {
+		return false
+	}
+	return tt == kind
+}
+
+// Poller is an LRO poller that uses the Body pattern.
+type Poller[T any] struct {
+	pl exported.Pipeline
+
+	resp *http.Response
+
+	// The poller's type, used for resume token processing.
+	Type string `json:"type"`
+
+	// The URL for polling.
+	PollURL string `json:"pollURL"`
+
+	// The LRO's current state.
+	CurState string `json:"state"`
+}
+
+// New creates a new Poller from the provided initial response.
+// Pass nil for response to create an empty Poller for rehydration.
+func New[T any](pl exported.Pipeline, resp *http.Response) (*Poller[T], error) {
+	if resp == nil {
+		log.Write(log.EventLRO, "Resuming Body poller.")
+		return &Poller[T]{pl: pl}, nil
+	}
+	log.Write(log.EventLRO, "Using Body poller.")
+	p := &Poller[T]{
+		pl:      pl,
+		resp:    resp,
+		Type:    kind,
+		PollURL: resp.Request.URL.String(),
+	}
+	// default initial state to InProgress.  depending on the HTTP
+	// status code and provisioning state, we might change the value.
+	curState := pollers.StatusInProgress
+	provState, err := pollers.GetProvisioningState(resp)
+	if err != nil && !errors.Is(err, pollers.ErrNoBody) {
+		return nil, err
+	}
+	if resp.StatusCode == http.StatusCreated && provState != "" {
+		// absense of provisioning state is ok for a 201, means the operation is in progress
+		curState = provState
+	} else if resp.StatusCode == http.StatusOK {
+		if provState != "" {
+			curState = provState
+		} else if provState == "" {
+			// for a 200, absense of provisioning state indicates success
+			curState = pollers.StatusSucceeded
+		}
+	} else if resp.StatusCode == http.StatusNoContent {
+		curState = pollers.StatusSucceeded
+	}
+	p.CurState = curState
+	return p, nil
+}
+
+func (p *Poller[T]) Done() bool {
+	return pollers.IsTerminalState(p.CurState)
+}
+
+func (p *Poller[T]) Poll(ctx context.Context) (*http.Response, error) {
+	err := pollers.PollHelper(ctx, p.PollURL, p.pl, func(resp *http.Response) (string, error) {
+		if !pollers.StatusCodeValid(resp) {
+			p.resp = resp
+			return "", exported.NewResponseError(resp)
+		}
+		if resp.StatusCode == http.StatusNoContent {
+			p.resp = resp
+			p.CurState = pollers.StatusSucceeded
+			return p.CurState, nil
+		}
+		state, err := pollers.GetProvisioningState(resp)
+		if errors.Is(err, pollers.ErrNoBody) {
+			// a missing response body in non-204 case is an error
+			return "", err
+		} else if state == "" {
+			// a response body without provisioning state is considered terminal success
+			state = pollers.StatusSucceeded
+		} else if err != nil {
+			return "", err
+		}
+		p.resp = resp
+		p.CurState = state
+		return p.CurState, nil
+	})
+	if err != nil {
+		return nil, err
+	}
+	return p.resp, nil
+}
+
+func (p *Poller[T]) Result(ctx context.Context, out *T) error {
+	return pollers.ResultHelper(p.resp, pollers.Failed(p.CurState), out)
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/pollers/loc/loc.go

@@ -0,0 +1,118 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package loc
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"net/http"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/exported"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/log"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/pollers"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/shared"
+)
+
+// Kind is the identifier of this type in a resume token.
+const kind = "loc"
+
+// Applicable returns true if the LRO is using Location.
+func Applicable(resp *http.Response) bool {
+	return resp.Header.Get(shared.HeaderLocation) != ""
+}
+
+// CanResume returns true if the token can rehydrate this poller type.
+func CanResume(token map[string]interface{}) bool {
+	t, ok := token["type"]
+	if !ok {
+		return false
+	}
+	tt, ok := t.(string)
+	if !ok {
+		return false
+	}
+	return tt == kind
+}
+
+// Poller is an LRO poller that uses the Location pattern.
+type Poller[T any] struct {
+	pl   exported.Pipeline
+	resp *http.Response
+
+	Type     string `json:"type"`
+	PollURL  string `json:"pollURL"`
+	CurState string `json:"state"`
+}
+
+// New creates a new Poller from the provided initial response.
+// Pass nil for response to create an empty Poller for rehydration.
+func New[T any](pl exported.Pipeline, resp *http.Response) (*Poller[T], error) {
+	if resp == nil {
+		log.Write(log.EventLRO, "Resuming Location poller.")
+		return &Poller[T]{pl: pl}, nil
+	}
+	log.Write(log.EventLRO, "Using Location poller.")
+	locURL := resp.Header.Get(shared.HeaderLocation)
+	if locURL == "" {
+		return nil, errors.New("response is missing Location header")
+	}
+	if !pollers.IsValidURL(locURL) {
+		return nil, fmt.Errorf("invalid polling URL %s", locURL)
+	}
+	// check for provisioning state.  if the operation is a RELO
+	// and terminates synchronously this will prevent extra polling.
+	// it's ok if there's no provisioning state.
+	state, _ := pollers.GetProvisioningState(resp)
+	if state == "" {
+		state = pollers.StatusInProgress
+	}
+	return &Poller[T]{
+		pl:       pl,
+		resp:     resp,
+		Type:     kind,
+		PollURL:  locURL,
+		CurState: state,
+	}, nil
+}
+
+func (p *Poller[T]) Done() bool {
+	return pollers.IsTerminalState(p.CurState)
+}
+
+func (p *Poller[T]) Poll(ctx context.Context) (*http.Response, error) {
+	err := pollers.PollHelper(ctx, p.PollURL, p.pl, func(resp *http.Response) (string, error) {
+		// location polling can return an updated polling URL
+		if h := resp.Header.Get(shared.HeaderLocation); h != "" {
+			p.PollURL = h
+		}
+		// if provisioning state is available, use that.  this is only
+		// for some ARM LRO scenarios (e.g. DELETE with a Location header)
+		// so if it's missing then use HTTP status code.
+		provState, _ := pollers.GetProvisioningState(resp)
+		p.resp = resp
+		if provState != "" {
+			p.CurState = provState
+		} else if resp.StatusCode == http.StatusAccepted {
+			p.CurState = pollers.StatusInProgress
+		} else if resp.StatusCode > 199 && resp.StatusCode < 300 {
+			// any 2xx other than a 202 indicates success
+			p.CurState = pollers.StatusSucceeded
+		} else {
+			p.CurState = pollers.StatusFailed
+		}
+		return p.CurState, nil
+	})
+	if err != nil {
+		return nil, err
+	}
+	return p.resp, nil
+}
+
+func (p *Poller[T]) Result(ctx context.Context, out *T) error {
+	return pollers.ResultHelper(p.resp, pollers.Failed(p.CurState), out)
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/pollers/op/op.go

@@ -0,0 +1,144 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package op
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"net/http"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/exported"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/log"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/pollers"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/shared"
+)
+
+// Applicable returns true if the LRO is using Operation-Location.
+func Applicable(resp *http.Response) bool {
+	return resp.Header.Get(shared.HeaderOperationLocation) != ""
+}
+
+// CanResume returns true if the token can rehydrate this poller type.
+func CanResume(token map[string]interface{}) bool {
+	_, ok := token["oplocURL"]
+	return ok
+}
+
+// Poller is an LRO poller that uses the Operation-Location pattern.
+type Poller[T any] struct {
+	pl   exported.Pipeline
+	resp *http.Response
+
+	OpLocURL   string                `json:"oplocURL"`
+	LocURL     string                `json:"locURL"`
+	OrigURL    string                `json:"origURL"`
+	Method     string                `json:"method"`
+	FinalState pollers.FinalStateVia `json:"finalState"`
+	CurState   string                `json:"state"`
+}
+
+// New creates a new Poller from the provided initial response.
+// Pass nil for response to create an empty Poller for rehydration.
+func New[T any](pl exported.Pipeline, resp *http.Response, finalState pollers.FinalStateVia) (*Poller[T], error) {
+	if resp == nil {
+		log.Write(log.EventLRO, "Resuming Operation-Location poller.")
+		return &Poller[T]{pl: pl}, nil
+	}
+	log.Write(log.EventLRO, "Using Operation-Location poller.")
+	opURL := resp.Header.Get(shared.HeaderOperationLocation)
+	if opURL == "" {
+		return nil, errors.New("response is missing Operation-Location header")
+	}
+	if !pollers.IsValidURL(opURL) {
+		return nil, fmt.Errorf("invalid Operation-Location URL %s", opURL)
+	}
+	locURL := resp.Header.Get(shared.HeaderLocation)
+	// Location header is optional
+	if locURL != "" && !pollers.IsValidURL(locURL) {
+		return nil, fmt.Errorf("invalid Location URL %s", locURL)
+	}
+	// default initial state to InProgress.  if the
+	// service sent us a status then use that instead.
+	curState := pollers.StatusInProgress
+	status, err := pollers.GetStatus(resp)
+	if err != nil && !errors.Is(err, pollers.ErrNoBody) {
+		return nil, err
+	}
+	if status != "" {
+		curState = status
+	}
+
+	return &Poller[T]{
+		pl:         pl,
+		resp:       resp,
+		OpLocURL:   opURL,
+		LocURL:     locURL,
+		OrigURL:    resp.Request.URL.String(),
+		Method:     resp.Request.Method,
+		FinalState: finalState,
+		CurState:   curState,
+	}, nil
+}
+
+func (p *Poller[T]) Done() bool {
+	return pollers.IsTerminalState(p.CurState)
+}
+
+func (p *Poller[T]) Poll(ctx context.Context) (*http.Response, error) {
+	err := pollers.PollHelper(ctx, p.OpLocURL, p.pl, func(resp *http.Response) (string, error) {
+		if !pollers.StatusCodeValid(resp) {
+			p.resp = resp
+			return "", exported.NewResponseError(resp)
+		}
+		state, err := pollers.GetStatus(resp)
+		if err != nil {
+			return "", err
+		} else if state == "" {
+			return "", errors.New("the response did not contain a status")
+		}
+		p.resp = resp
+		p.CurState = state
+		return p.CurState, nil
+	})
+	if err != nil {
+		return nil, err
+	}
+	return p.resp, nil
+}
+
+func (p *Poller[T]) Result(ctx context.Context, out *T) error {
+	var req *exported.Request
+	var err error
+	if p.FinalState == pollers.FinalStateViaLocation && p.LocURL != "" {
+		req, err = exported.NewRequest(ctx, http.MethodGet, p.LocURL)
+	} else if p.FinalState == pollers.FinalStateViaOpLocation && p.Method == http.MethodPost {
+		// no final GET required, terminal response should have it
+	} else if rl, rlErr := pollers.GetResourceLocation(p.resp); rlErr != nil && !errors.Is(rlErr, pollers.ErrNoBody) {
+		return rlErr
+	} else if rl != "" {
+		req, err = exported.NewRequest(ctx, http.MethodGet, rl)
+	} else if p.Method == http.MethodPatch || p.Method == http.MethodPut {
+		req, err = exported.NewRequest(ctx, http.MethodGet, p.OrigURL)
+	} else if p.Method == http.MethodPost && p.LocURL != "" {
+		req, err = exported.NewRequest(ctx, http.MethodGet, p.LocURL)
+	}
+	if err != nil {
+		return err
+	}
+
+	// if a final GET request has been created, execute it
+	if req != nil {
+		resp, err := p.pl.Do(req)
+		if err != nil {
+			return err
+		}
+		p.resp = resp
+	}
+
+	return pollers.ResultHelper(p.resp, pollers.Failed(p.CurState), out)
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/pollers/poller.go

@@ -0,0 +1,24 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package pollers
+
+// FinalStateVia is the enumerated type for the possible final-state-via values.
+type FinalStateVia string
+
+const (
+	// FinalStateViaAzureAsyncOp indicates the final payload comes from the Azure-AsyncOperation URL.
+	FinalStateViaAzureAsyncOp FinalStateVia = "azure-async-operation"
+
+	// FinalStateViaLocation indicates the final payload comes from the Location URL.
+	FinalStateViaLocation FinalStateVia = "location"
+
+	// FinalStateViaOriginalURI indicates the final payload comes from the original URL.
+	FinalStateViaOriginalURI FinalStateVia = "original-uri"
+
+	// FinalStateViaOpLocation indicates the final payload comes from the Operation-Location URL.
+	FinalStateViaOpLocation FinalStateVia = "operation-location"
+)

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/pollers/util.go

@@ -0,0 +1,317 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package pollers
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net/http"
+	"net/url"
+	"reflect"
+	"strings"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/exported"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/log"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/shared"
+)
+
+// the well-known set of LRO status/provisioning state values.
+const (
+	StatusSucceeded  = "Succeeded"
+	StatusCanceled   = "Canceled"
+	StatusFailed     = "Failed"
+	StatusInProgress = "InProgress"
+)
+
+// IsTerminalState returns true if the LRO's state is terminal.
+func IsTerminalState(s string) bool {
+	return strings.EqualFold(s, StatusSucceeded) || strings.EqualFold(s, StatusFailed) || strings.EqualFold(s, StatusCanceled)
+}
+
+// Failed returns true if the LRO's state is terminal failure.
+func Failed(s string) bool {
+	return strings.EqualFold(s, StatusFailed) || strings.EqualFold(s, StatusCanceled)
+}
+
+// Succeeded returns true if the LRO's state is terminal success.
+func Succeeded(s string) bool {
+	return strings.EqualFold(s, StatusSucceeded)
+}
+
+// returns true if the LRO response contains a valid HTTP status code
+func StatusCodeValid(resp *http.Response) bool {
+	return exported.HasStatusCode(resp, http.StatusOK, http.StatusAccepted, http.StatusCreated, http.StatusNoContent)
+}
+
+// IsValidURL verifies that the URL is valid and absolute.
+func IsValidURL(s string) bool {
+	u, err := url.Parse(s)
+	return err == nil && u.IsAbs()
+}
+
+// getTokenTypeName creates a type name from the type parameter T.
+func getTokenTypeName[T any]() (string, error) {
+	tt := shared.TypeOfT[T]()
+	var n string
+	if tt.Kind() == reflect.Pointer {
+		n = "*"
+		tt = tt.Elem()
+	}
+	n += tt.Name()
+	if n == "" {
+		return "", errors.New("nameless types are not allowed")
+	}
+	return n, nil
+}
+
+type resumeTokenWrapper[T any] struct {
+	Type  string `json:"type"`
+	Token T      `json:"token"`
+}
+
+// NewResumeToken creates a resume token from the specified type.
+// An error is returned if the generic type has no name (e.g. struct{}).
+func NewResumeToken[TResult, TSource any](from TSource) (string, error) {
+	n, err := getTokenTypeName[TResult]()
+	if err != nil {
+		return "", err
+	}
+	b, err := json.Marshal(resumeTokenWrapper[TSource]{
+		Type:  n,
+		Token: from,
+	})
+	if err != nil {
+		return "", err
+	}
+	return string(b), nil
+}
+
+// ExtractToken returns the poller-specific token information from the provided token value.
+func ExtractToken(token string) ([]byte, error) {
+	raw := map[string]json.RawMessage{}
+	if err := json.Unmarshal([]byte(token), &raw); err != nil {
+		return nil, err
+	}
+	// this is dependent on the type resumeTokenWrapper[T]
+	tk, ok := raw["token"]
+	if !ok {
+		return nil, errors.New("missing token value")
+	}
+	return tk, nil
+}
+
+// IsTokenValid returns an error if the specified token isn't applicable for generic type T.
+func IsTokenValid[T any](token string) error {
+	raw := map[string]interface{}{}
+	if err := json.Unmarshal([]byte(token), &raw); err != nil {
+		return err
+	}
+	t, ok := raw["type"]
+	if !ok {
+		return errors.New("missing type value")
+	}
+	tt, ok := t.(string)
+	if !ok {
+		return fmt.Errorf("invalid type format %T", t)
+	}
+	n, err := getTokenTypeName[T]()
+	if err != nil {
+		return err
+	}
+	if tt != n {
+		return fmt.Errorf("cannot resume from this poller token. token is for type %s, not %s", tt, n)
+	}
+	return nil
+}
+
+// ErrNoBody is returned if the response didn't contain a body.
+var ErrNoBody = errors.New("the response did not contain a body")
+
+// GetJSON reads the response body into a raw JSON object.
+// It returns ErrNoBody if there was no content.
+func GetJSON(resp *http.Response) (map[string]interface{}, error) {
+	body, err := exported.Payload(resp)
+	if err != nil {
+		return nil, err
+	}
+	if len(body) == 0 {
+		return nil, ErrNoBody
+	}
+	// unmarshall the body to get the value
+	var jsonBody map[string]interface{}
+	if err = json.Unmarshal(body, &jsonBody); err != nil {
+		return nil, err
+	}
+	return jsonBody, nil
+}
+
+// provisioningState returns the provisioning state from the response or the empty string.
+func provisioningState(jsonBody map[string]interface{}) string {
+	jsonProps, ok := jsonBody["properties"]
+	if !ok {
+		return ""
+	}
+	props, ok := jsonProps.(map[string]interface{})
+	if !ok {
+		return ""
+	}
+	rawPs, ok := props["provisioningState"]
+	if !ok {
+		return ""
+	}
+	ps, ok := rawPs.(string)
+	if !ok {
+		return ""
+	}
+	return ps
+}
+
+// status returns the status from the response or the empty string.
+func status(jsonBody map[string]interface{}) string {
+	rawStatus, ok := jsonBody["status"]
+	if !ok {
+		return ""
+	}
+	status, ok := rawStatus.(string)
+	if !ok {
+		return ""
+	}
+	return status
+}
+
+// GetStatus returns the LRO's status from the response body.
+// Typically used for Azure-AsyncOperation flows.
+// If there is no status in the response body the empty string is returned.
+func GetStatus(resp *http.Response) (string, error) {
+	jsonBody, err := GetJSON(resp)
+	if err != nil {
+		return "", err
+	}
+	return status(jsonBody), nil
+}
+
+// GetProvisioningState returns the LRO's state from the response body.
+// If there is no state in the response body the empty string is returned.
+func GetProvisioningState(resp *http.Response) (string, error) {
+	jsonBody, err := GetJSON(resp)
+	if err != nil {
+		return "", err
+	}
+	return provisioningState(jsonBody), nil
+}
+
+// GetResourceLocation returns the LRO's resourceLocation value from the response body.
+// Typically used for Operation-Location flows.
+// If there is no resourceLocation in the response body the empty string is returned.
+func GetResourceLocation(resp *http.Response) (string, error) {
+	jsonBody, err := GetJSON(resp)
+	if err != nil {
+		return "", err
+	}
+	v, ok := jsonBody["resourceLocation"]
+	if !ok {
+		// it might be ok if the field doesn't exist, the caller must make that determination
+		return "", nil
+	}
+	vv, ok := v.(string)
+	if !ok {
+		return "", fmt.Errorf("the resourceLocation value %v was not in string format", v)
+	}
+	return vv, nil
+}
+
+// used if the operation synchronously completed
+type NopPoller[T any] struct {
+	resp   *http.Response
+	result T
+}
+
+// NewNopPoller creates a NopPoller from the provided response.
+// It unmarshals the response body into an instance of T.
+func NewNopPoller[T any](resp *http.Response) (*NopPoller[T], error) {
+	np := &NopPoller[T]{resp: resp}
+	if resp.StatusCode == http.StatusNoContent {
+		return np, nil
+	}
+	payload, err := exported.Payload(resp)
+	if err != nil {
+		return nil, err
+	}
+	if len(payload) == 0 {
+		return np, nil
+	}
+	if err = json.Unmarshal(payload, &np.result); err != nil {
+		return nil, err
+	}
+	return np, nil
+}
+
+func (*NopPoller[T]) Done() bool {
+	return true
+}
+
+func (p *NopPoller[T]) Poll(context.Context) (*http.Response, error) {
+	return p.resp, nil
+}
+
+func (p *NopPoller[T]) Result(ctx context.Context, out *T) error {
+	*out = p.result
+	return nil
+}
+
+// PollHelper creates and executes the request, calling update() with the response.
+// If the request fails, the update func is not called.
+// The update func returns the state of the operation for logging purposes or an error
+// if it fails to extract the required state from the response.
+func PollHelper(ctx context.Context, endpoint string, pl exported.Pipeline, update func(resp *http.Response) (string, error)) error {
+	req, err := exported.NewRequest(ctx, http.MethodGet, endpoint)
+	if err != nil {
+		return err
+	}
+	resp, err := pl.Do(req)
+	if err != nil {
+		return err
+	}
+	state, err := update(resp)
+	if err != nil {
+		return err
+	}
+	log.Writef(log.EventLRO, "State %s", state)
+	return nil
+}
+
+// ResultHelper processes the response as success or failure.
+// In the success case, it unmarshals the payload into either a new instance of T or out.
+// In the failure case, it creates an *azcore.Response error from the response.
+func ResultHelper[T any](resp *http.Response, failed bool, out *T) error {
+	// short-circuit the simple success case with no response body to unmarshal
+	if resp.StatusCode == http.StatusNoContent {
+		return nil
+	}
+
+	defer resp.Body.Close()
+	if !StatusCodeValid(resp) || failed {
+		// the LRO failed.  unmarshall the error and update state
+		return exported.NewResponseError(resp)
+	}
+
+	// success case
+	payload, err := exported.Payload(resp)
+	if err != nil {
+		return err
+	}
+	if len(payload) == 0 {
+		return nil
+	}
+
+	if err = json.Unmarshal(payload, out); err != nil {
+		return err
+	}
+	return nil
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/shared/constants.go

@@ -0,0 +1,34 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package shared
+
+const (
+	ContentTypeAppJSON = "application/json"
+	ContentTypeAppXML  = "application/xml"
+)
+
+const (
+	HeaderAuthorization          = "Authorization"
+	HeaderAuxiliaryAuthorization = "x-ms-authorization-auxiliary"
+	HeaderAzureAsync             = "Azure-AsyncOperation"
+	HeaderContentLength          = "Content-Length"
+	HeaderContentType            = "Content-Type"
+	HeaderLocation               = "Location"
+	HeaderOperationLocation      = "Operation-Location"
+	HeaderRetryAfter             = "Retry-After"
+	HeaderUserAgent              = "User-Agent"
+)
+
+const BearerTokenPrefix = "Bearer "
+
+const (
+	// Module is the name of the calling module used in telemetry data.
+	Module = "azcore"
+
+	// Version is the semantic version (see http://semver.org) of this module.
+	Version = "v1.3.0"
+)

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/shared/shared.go

@@ -0,0 +1,159 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package shared
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"reflect"
+	"regexp"
+	"strconv"
+	"strings"
+	"time"
+)
+
+// CtxWithHTTPHeaderKey is used as a context key for adding/retrieving http.Header.
+type CtxWithHTTPHeaderKey struct{}
+
+// CtxWithRetryOptionsKey is used as a context key for adding/retrieving RetryOptions.
+type CtxWithRetryOptionsKey struct{}
+
+// CtxIncludeResponseKey is used as a context key for retrieving the raw response.
+type CtxIncludeResponseKey struct{}
+
+// Delay waits for the duration to elapse or the context to be cancelled.
+func Delay(ctx context.Context, delay time.Duration) error {
+	select {
+	case <-time.After(delay):
+		return nil
+	case <-ctx.Done():
+		return ctx.Err()
+	}
+}
+
+// RetryAfter returns non-zero if the response contains a Retry-After header value.
+func RetryAfter(resp *http.Response) time.Duration {
+	if resp == nil {
+		return 0
+	}
+	ra := resp.Header.Get(HeaderRetryAfter)
+	if ra == "" {
+		return 0
+	}
+	// retry-after values are expressed in either number of
+	// seconds or an HTTP-date indicating when to try again
+	if retryAfter, _ := strconv.Atoi(ra); retryAfter > 0 {
+		return time.Duration(retryAfter) * time.Second
+	} else if t, err := time.Parse(time.RFC1123, ra); err == nil {
+		return time.Until(t)
+	}
+	return 0
+}
+
+// TypeOfT returns the type of the generic type param.
+func TypeOfT[T any]() reflect.Type {
+	// you can't, at present, obtain the type of
+	// a type parameter, so this is the trick
+	return reflect.TypeOf((*T)(nil)).Elem()
+}
+
+// BytesSetter abstracts replacing a byte slice on some type.
+type BytesSetter interface {
+	Set(b []byte)
+}
+
+// NewNopClosingBytesReader creates a new *NopClosingBytesReader for the specified slice.
+func NewNopClosingBytesReader(data []byte) *NopClosingBytesReader {
+	return &NopClosingBytesReader{s: data}
+}
+
+// NopClosingBytesReader is an io.ReadSeekCloser around a byte slice.
+// It also provides direct access to the byte slice to avoid rereading.
+type NopClosingBytesReader struct {
+	s []byte
+	i int64
+}
+
+// Bytes returns the underlying byte slice.
+func (r *NopClosingBytesReader) Bytes() []byte {
+	return r.s
+}
+
+// Close implements the io.Closer interface.
+func (*NopClosingBytesReader) Close() error {
+	return nil
+}
+
+// Read implements the io.Reader interface.
+func (r *NopClosingBytesReader) Read(b []byte) (n int, err error) {
+	if r.i >= int64(len(r.s)) {
+		return 0, io.EOF
+	}
+	n = copy(b, r.s[r.i:])
+	r.i += int64(n)
+	return
+}
+
+// Set replaces the existing byte slice with the specified byte slice and resets the reader.
+func (r *NopClosingBytesReader) Set(b []byte) {
+	r.s = b
+	r.i = 0
+}
+
+// Seek implements the io.Seeker interface.
+func (r *NopClosingBytesReader) Seek(offset int64, whence int) (int64, error) {
+	var i int64
+	switch whence {
+	case io.SeekStart:
+		i = offset
+	case io.SeekCurrent:
+		i = r.i + offset
+	case io.SeekEnd:
+		i = int64(len(r.s)) + offset
+	default:
+		return 0, errors.New("nopClosingBytesReader: invalid whence")
+	}
+	if i < 0 {
+		return 0, errors.New("nopClosingBytesReader: negative position")
+	}
+	r.i = i
+	return i, nil
+}
+
+var _ BytesSetter = (*NopClosingBytesReader)(nil)
+
+// TransportFunc is a helper to use a first-class func to satisfy the Transporter interface.
+type TransportFunc func(*http.Request) (*http.Response, error)
+
+// Do implements the Transporter interface for the TransportFunc type.
+func (pf TransportFunc) Do(req *http.Request) (*http.Response, error) {
+	return pf(req)
+}
+
+// ValidateModVer verifies that moduleVersion is a valid semver 2.0 string.
+func ValidateModVer(moduleVersion string) error {
+	modVerRegx := regexp.MustCompile(`^v\d+\.\d+\.\d+(?:-[a-zA-Z0-9_.-]+)?$`)
+	if !modVerRegx.MatchString(moduleVersion) {
+		return fmt.Errorf("malformed moduleVersion param value %s", moduleVersion)
+	}
+	return nil
+}
+
+// ExtractPackageName returns "package" from "package.Client".
+// If clientName is malformed, an error is returned.
+func ExtractPackageName(clientName string) (string, error) {
+	pkg, client, ok := strings.Cut(clientName, ".")
+	if !ok {
+		return "", fmt.Errorf("missing . in clientName %s", clientName)
+	} else if pkg == "" || client == "" {
+		return "", fmt.Errorf("malformed clientName %s", clientName)
+	}
+	return pkg, nil
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/log/doc.go

@@ -0,0 +1,10 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright 2017 Microsoft Corporation. All rights reserved.
+// Use of this source code is governed by an MIT
+// license that can be found in the LICENSE file.
+
+// Package log contains functionality for configuring logging behavior.
+// Default logging to stderr can be enabled by setting environment variable AZURE_SDK_GO_LOGGING to "all".
+package log

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/log/log.go

@@ -0,0 +1,50 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+// Package log provides functionality for configuring logging facilities.
+package log
+
+import (
+	"github.com/Azure/azure-sdk-for-go/sdk/internal/log"
+)
+
+// Event is used to group entries.  Each group can be toggled on or off.
+type Event = log.Event
+
+const (
+	// EventRequest entries contain information about HTTP requests.
+	// This includes information like the URL, query parameters, and headers.
+	EventRequest Event = "Request"
+
+	// EventResponse entries contain information about HTTP responses.
+	// This includes information like the HTTP status code, headers, and request URL.
+	EventResponse Event = "Response"
+
+	// EventRetryPolicy entries contain information specific to the retry policy in use.
+	EventRetryPolicy Event = "Retry"
+
+	// EventLRO entries contain information specific to long-running operations.
+	// This includes information like polling location, operation state, and sleep intervals.
+	EventLRO Event = "LongRunningOperation"
+)
+
+// SetEvents is used to control which events are written to
+// the log.  By default all log events are writen.
+// NOTE: this is not goroutine safe and should be called before using SDK clients.
+func SetEvents(cls ...Event) {
+	log.SetEvents(cls...)
+}
+
+// SetListener will set the Logger to write to the specified Listener.
+// NOTE: this is not goroutine safe and should be called before using SDK clients.
+func SetListener(lst func(Event, string)) {
+	log.SetListener(lst)
+}
+
+// for testing purposes
+func resetEvents() {
+	log.TestResetEvents()
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/policy/doc.go

@@ -0,0 +1,10 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright 2017 Microsoft Corporation. All rights reserved.
+// Use of this source code is governed by an MIT
+// license that can be found in the LICENSE file.
+
+// Package policy contains the definitions needed for configuring in-box pipeline policies
+// and creating custom policies.
+package policy

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/policy/policy.go

@@ -0,0 +1,155 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package policy
+
+import (
+	"net/http"
+	"time"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/cloud"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/exported"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/tracing"
+)
+
+// Policy represents an extensibility point for the Pipeline that can mutate the specified
+// Request and react to the received Response.
+type Policy = exported.Policy
+
+// Transporter represents an HTTP pipeline transport used to send HTTP requests and receive responses.
+type Transporter = exported.Transporter
+
+// Request is an abstraction over the creation of an HTTP request as it passes through the pipeline.
+// Don't use this type directly, use runtime.NewRequest() instead.
+type Request = exported.Request
+
+// ClientOptions contains optional settings for a client's pipeline.
+// All zero-value fields will be initialized with default values.
+type ClientOptions struct {
+	// APIVersion overrides the default version requested of the service. Set with caution as this package version has not been tested with arbitrary service versions.
+	APIVersion string
+
+	// Cloud specifies a cloud for the client. The default is Azure Public Cloud.
+	Cloud cloud.Configuration
+
+	// Logging configures the built-in logging policy.
+	Logging LogOptions
+
+	// Retry configures the built-in retry policy.
+	Retry RetryOptions
+
+	// Telemetry configures the built-in telemetry policy.
+	Telemetry TelemetryOptions
+
+	// TracingProvider configures the tracing provider.
+	// It defaults to a no-op tracer.
+	TracingProvider tracing.Provider
+
+	// Transport sets the transport for HTTP requests.
+	Transport Transporter
+
+	// PerCallPolicies contains custom policies to inject into the pipeline.
+	// Each policy is executed once per request.
+	PerCallPolicies []Policy
+
+	// PerRetryPolicies contains custom policies to inject into the pipeline.
+	// Each policy is executed once per request, and for each retry of that request.
+	PerRetryPolicies []Policy
+}
+
+// LogOptions configures the logging policy's behavior.
+type LogOptions struct {
+	// IncludeBody indicates if request and response bodies should be included in logging.
+	// The default value is false.
+	// NOTE: enabling this can lead to disclosure of sensitive information, use with care.
+	IncludeBody bool
+
+	// AllowedHeaders is the slice of headers to log with their values intact.
+	// All headers not in the slice will have their values REDACTED.
+	// Applies to request and response headers.
+	AllowedHeaders []string
+
+	// AllowedQueryParams is the slice of query parameters to log with their values intact.
+	// All query parameters not in the slice will have their values REDACTED.
+	AllowedQueryParams []string
+}
+
+// RetryOptions configures the retry policy's behavior.
+// Zero-value fields will have their specified default values applied during use.
+// This allows for modification of a subset of fields.
+type RetryOptions struct {
+	// MaxRetries specifies the maximum number of attempts a failed operation will be retried
+	// before producing an error.
+	// The default value is three.  A value less than zero means one try and no retries.
+	MaxRetries int32
+
+	// TryTimeout indicates the maximum time allowed for any single try of an HTTP request.
+	// This is disabled by default.  Specify a value greater than zero to enable.
+	// NOTE: Setting this to a small value might cause premature HTTP request time-outs.
+	TryTimeout time.Duration
+
+	// RetryDelay specifies the initial amount of delay to use before retrying an operation.
+	// The value is used only if the HTTP response does not contain a Retry-After header.
+	// The delay increases exponentially with each retry up to the maximum specified by MaxRetryDelay.
+	// The default value is four seconds.  A value less than zero means no delay between retries.
+	RetryDelay time.Duration
+
+	// MaxRetryDelay specifies the maximum delay allowed before retrying an operation.
+	// Typically the value is greater than or equal to the value specified in RetryDelay.
+	// The default Value is 120 seconds.  A value less than zero means there is no cap.
+	MaxRetryDelay time.Duration
+
+	// StatusCodes specifies the HTTP status codes that indicate the operation should be retried.
+	// A nil slice will use the following values.
+	//   http.StatusRequestTimeout      408
+	//   http.StatusTooManyRequests     429
+	//   http.StatusInternalServerError 500
+	//   http.StatusBadGateway          502
+	//   http.StatusServiceUnavailable  503
+	//   http.StatusGatewayTimeout      504
+	// Specifying values will replace the default values.
+	// Specifying an empty slice will disable retries for HTTP status codes.
+	StatusCodes []int
+}
+
+// TelemetryOptions configures the telemetry policy's behavior.
+type TelemetryOptions struct {
+	// ApplicationID is an application-specific identification string to add to the User-Agent.
+	// It has a maximum length of 24 characters and must not contain any spaces.
+	ApplicationID string
+
+	// Disabled will prevent the addition of any telemetry data to the User-Agent.
+	Disabled bool
+}
+
+// TokenRequestOptions contain specific parameter that may be used by credentials types when attempting to get a token.
+type TokenRequestOptions = exported.TokenRequestOptions
+
+// BearerTokenOptions configures the bearer token policy's behavior.
+type BearerTokenOptions struct {
+	// AuthorizationHandler allows SDK developers to run client-specific logic when BearerTokenPolicy must authorize a request.
+	// When this field isn't set, the policy follows its default behavior of authorizing every request with a bearer token from
+	// its given credential.
+	AuthorizationHandler AuthorizationHandler
+}
+
+// AuthorizationHandler allows SDK developers to insert custom logic that runs when BearerTokenPolicy must authorize a request.
+type AuthorizationHandler struct {
+	// OnRequest is called each time the policy receives a request. Its func parameter authorizes the request with a token
+	// from the policy's given credential. Implementations that need to perform I/O should use the Request's context,
+	// available from Request.Raw().Context(). When OnRequest returns an error, the policy propagates that error and doesn't
+	// send the request. When OnRequest is nil, the policy follows its default behavior, authorizing the request with a
+	// token from its credential according to its configuration.
+	OnRequest func(*Request, func(TokenRequestOptions) error) error
+
+	// OnChallenge is called when the policy receives a 401 response, allowing the AuthorizationHandler to re-authorize the
+	// request according to an authentication challenge (the Response's WWW-Authenticate header). OnChallenge is responsible
+	// for parsing parameters from the challenge. Its func parameter will authorize the request with a token from the policy's
+	// given credential. Implementations that need to perform I/O should use the Request's context, available from
+	// Request.Raw().Context(). When OnChallenge returns nil, the policy will send the request again. When OnChallenge is nil,
+	// the policy will return any 401 response to the client.
+	OnChallenge func(*Request, *http.Response, func(TokenRequestOptions) error) error
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime/doc.go

@@ -0,0 +1,10 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright 2017 Microsoft Corporation. All rights reserved.
+// Use of this source code is governed by an MIT
+// license that can be found in the LICENSE file.
+
+// Package runtime contains various facilities for creating requests and handling responses.
+// The content is intended for SDK authors.
+package runtime

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime/errors.go

@@ -0,0 +1,19 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package runtime
+
+import (
+	"net/http"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/exported"
+)
+
+// NewResponseError creates an *azcore.ResponseError from the provided HTTP response.
+// Call this when a service request returns a non-successful status code.
+func NewResponseError(resp *http.Response) error {
+	return exported.NewResponseError(resp)
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime/pager.go

@@ -0,0 +1,77 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package runtime
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+)
+
+// PagingHandler contains the required data for constructing a Pager.
+type PagingHandler[T any] struct {
+	// More returns a boolean indicating if there are more pages to fetch.
+	// It uses the provided page to make the determination.
+	More func(T) bool
+
+	// Fetcher fetches the first and subsequent pages.
+	Fetcher func(context.Context, *T) (T, error)
+}
+
+// Pager provides operations for iterating over paged responses.
+type Pager[T any] struct {
+	current   *T
+	handler   PagingHandler[T]
+	firstPage bool
+}
+
+// NewPager creates an instance of Pager using the specified PagingHandler.
+// Pass a non-nil T for firstPage if the first page has already been retrieved.
+func NewPager[T any](handler PagingHandler[T]) *Pager[T] {
+	return &Pager[T]{
+		handler:   handler,
+		firstPage: true,
+	}
+}
+
+// More returns true if there are more pages to retrieve.
+func (p *Pager[T]) More() bool {
+	if p.current != nil {
+		return p.handler.More(*p.current)
+	}
+	return true
+}
+
+// NextPage advances the pager to the next page.
+func (p *Pager[T]) NextPage(ctx context.Context) (T, error) {
+	var resp T
+	var err error
+	if p.current != nil {
+		if p.firstPage {
+			// we get here if it's an LRO-pager, we already have the first page
+			p.firstPage = false
+			return *p.current, nil
+		} else if !p.handler.More(*p.current) {
+			return *new(T), errors.New("no more pages")
+		}
+		resp, err = p.handler.Fetcher(ctx, p.current)
+	} else {
+		// non-LRO case, first page
+		p.firstPage = false
+		resp, err = p.handler.Fetcher(ctx, nil)
+	}
+	if err != nil {
+		return *new(T), err
+	}
+	p.current = &resp
+	return *p.current, nil
+}
+
+// UnmarshalJSON implements the json.Unmarshaler interface for Pager[T].
+func (p *Pager[T]) UnmarshalJSON(data []byte) error {
+	return json.Unmarshal(data, &p.current)
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime/pipeline.go

@@ -0,0 +1,77 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package runtime
+
+import (
+	"net/http"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/exported"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+)
+
+// PipelineOptions contains Pipeline options for SDK developers
+type PipelineOptions struct {
+	AllowedHeaders, AllowedQueryParameters []string
+	APIVersion                             APIVersionOptions
+	PerCall, PerRetry                      []policy.Policy
+}
+
+// Pipeline represents a primitive for sending HTTP requests and receiving responses.
+// Its behavior can be extended by specifying policies during construction.
+type Pipeline = exported.Pipeline
+
+// NewPipeline creates a pipeline from connection options, with any additional policies as specified.
+// Policies from ClientOptions are placed after policies from PipelineOptions.
+// The module and version parameters are used by the telemetry policy, when enabled.
+func NewPipeline(module, version string, plOpts PipelineOptions, options *policy.ClientOptions) Pipeline {
+	cp := policy.ClientOptions{}
+	if options != nil {
+		cp = *options
+	}
+	if len(plOpts.AllowedHeaders) > 0 {
+		headers := make([]string, len(plOpts.AllowedHeaders)+len(cp.Logging.AllowedHeaders))
+		copy(headers, plOpts.AllowedHeaders)
+		headers = append(headers, cp.Logging.AllowedHeaders...)
+		cp.Logging.AllowedHeaders = headers
+	}
+	if len(plOpts.AllowedQueryParameters) > 0 {
+		qp := make([]string, len(plOpts.AllowedQueryParameters)+len(cp.Logging.AllowedQueryParams))
+		copy(qp, plOpts.AllowedQueryParameters)
+		qp = append(qp, cp.Logging.AllowedQueryParams...)
+		cp.Logging.AllowedQueryParams = qp
+	}
+	// we put the includeResponsePolicy at the very beginning so that the raw response
+	// is populated with the final response (some policies might mutate the response)
+	policies := []policy.Policy{policyFunc(includeResponsePolicy)}
+	if cp.APIVersion != "" {
+		policies = append(policies, newAPIVersionPolicy(cp.APIVersion, &plOpts.APIVersion))
+	}
+	if !cp.Telemetry.Disabled {
+		policies = append(policies, NewTelemetryPolicy(module, version, &cp.Telemetry))
+	}
+	policies = append(policies, plOpts.PerCall...)
+	policies = append(policies, cp.PerCallPolicies...)
+	policies = append(policies, NewRetryPolicy(&cp.Retry))
+	policies = append(policies, plOpts.PerRetry...)
+	policies = append(policies, cp.PerRetryPolicies...)
+	policies = append(policies, NewLogPolicy(&cp.Logging))
+	policies = append(policies, policyFunc(httpHeaderPolicy), policyFunc(bodyDownloadPolicy))
+	transport := cp.Transport
+	if transport == nil {
+		transport = defaultHTTPClient
+	}
+	return exported.NewPipeline(transport, policies...)
+}
+
+// policyFunc is a type that implements the Policy interface.
+// Use this type when implementing a stateless policy as a first-class function.
+type policyFunc func(*policy.Request) (*http.Response, error)
+
+// Do implements the Policy interface on policyFunc.
+func (pf policyFunc) Do(req *policy.Request) (*http.Response, error) {
+	return pf(req)
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime/policy_api_version.go

@@ -0,0 +1,75 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package runtime
+
+import (
+	"errors"
+	"fmt"
+	"net/http"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+)
+
+// APIVersionOptions contains options for API versions
+type APIVersionOptions struct {
+	// Location indicates where to set the version on a request, for example in a header or query param
+	Location APIVersionLocation
+	// Name is the name of the header or query parameter, for example "api-version"
+	Name string
+}
+
+// APIVersionLocation indicates which part of a request identifies the service version
+type APIVersionLocation int
+
+const (
+	// APIVersionLocationQueryParam indicates a query parameter
+	APIVersionLocationQueryParam = 0
+	// APIVersionLocationHeader indicates a header
+	APIVersionLocationHeader = 1
+)
+
+// newAPIVersionPolicy constructs an APIVersionPolicy. If version is "", Do will be a no-op. If version
+// isn't empty and opts.Name is empty, Do will return an error.
+func newAPIVersionPolicy(version string, opts *APIVersionOptions) *apiVersionPolicy {
+	if opts == nil {
+		opts = &APIVersionOptions{}
+	}
+	return &apiVersionPolicy{location: opts.Location, name: opts.Name, version: version}
+}
+
+// apiVersionPolicy enables users to set the API version of every request a client sends.
+type apiVersionPolicy struct {
+	// location indicates whether "name" refers to a query parameter or header.
+	location APIVersionLocation
+
+	// name of the query param or header whose value should be overridden; provided by the client.
+	name string
+
+	// version is the value (provided by the user) that replaces the default version value.
+	version string
+}
+
+// Do sets the request's API version, if the policy is configured to do so, replacing any prior value.
+func (a *apiVersionPolicy) Do(req *policy.Request) (*http.Response, error) {
+	if a.version != "" {
+		if a.name == "" {
+			// user set ClientOptions.APIVersion but the client ctor didn't set PipelineOptions.APIVersionOptions
+			return nil, errors.New("this client doesn't support overriding its API version")
+		}
+		switch a.location {
+		case APIVersionLocationHeader:
+			req.Raw().Header.Set(a.name, a.version)
+		case APIVersionLocationQueryParam:
+			q := req.Raw().URL.Query()
+			q.Set(a.name, a.version)
+			req.Raw().URL.RawQuery = q.Encode()
+		default:
+			return nil, fmt.Errorf("unknown APIVersionLocation %d", a.location)
+		}
+	}
+	return req.Next()
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime/policy_bearer_token.go

@@ -0,0 +1,116 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package runtime
+
+import (
+	"errors"
+	"net/http"
+	"time"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/exported"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/shared"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+	"github.com/Azure/azure-sdk-for-go/sdk/internal/errorinfo"
+	"github.com/Azure/azure-sdk-for-go/sdk/internal/temporal"
+)
+
+// BearerTokenPolicy authorizes requests with bearer tokens acquired from a TokenCredential.
+type BearerTokenPolicy struct {
+	// mainResource is the resource to be retreived using the tenant specified in the credential
+	mainResource *temporal.Resource[exported.AccessToken, acquiringResourceState]
+	// the following fields are read-only
+	authzHandler policy.AuthorizationHandler
+	cred         exported.TokenCredential
+	scopes       []string
+}
+
+type acquiringResourceState struct {
+	req *policy.Request
+	p   *BearerTokenPolicy
+	tro policy.TokenRequestOptions
+}
+
+// acquire acquires or updates the resource; only one
+// thread/goroutine at a time ever calls this function
+func acquire(state acquiringResourceState) (newResource exported.AccessToken, newExpiration time.Time, err error) {
+	tk, err := state.p.cred.GetToken(state.req.Raw().Context(), state.tro)
+	if err != nil {
+		return exported.AccessToken{}, time.Time{}, err
+	}
+	return tk, tk.ExpiresOn, nil
+}
+
+// NewBearerTokenPolicy creates a policy object that authorizes requests with bearer tokens.
+// cred: an azcore.TokenCredential implementation such as a credential object from azidentity
+// scopes: the list of permission scopes required for the token.
+// opts: optional settings. Pass nil to accept default values; this is the same as passing a zero-value options.
+func NewBearerTokenPolicy(cred exported.TokenCredential, scopes []string, opts *policy.BearerTokenOptions) *BearerTokenPolicy {
+	if opts == nil {
+		opts = &policy.BearerTokenOptions{}
+	}
+	return &BearerTokenPolicy{
+		authzHandler: opts.AuthorizationHandler,
+		cred:         cred,
+		scopes:       scopes,
+		mainResource: temporal.NewResource(acquire),
+	}
+}
+
+// authenticateAndAuthorize returns a function which authorizes req with a token from the policy's credential
+func (b *BearerTokenPolicy) authenticateAndAuthorize(req *policy.Request) func(policy.TokenRequestOptions) error {
+	return func(tro policy.TokenRequestOptions) error {
+		as := acquiringResourceState{p: b, req: req, tro: tro}
+		tk, err := b.mainResource.Get(as)
+		if err != nil {
+			return err
+		}
+		req.Raw().Header.Set(shared.HeaderAuthorization, shared.BearerTokenPrefix+tk.Token)
+		return nil
+	}
+}
+
+// Do authorizes a request with a bearer token
+func (b *BearerTokenPolicy) Do(req *policy.Request) (*http.Response, error) {
+	var err error
+	if b.authzHandler.OnRequest != nil {
+		err = b.authzHandler.OnRequest(req, b.authenticateAndAuthorize(req))
+	} else {
+		err = b.authenticateAndAuthorize(req)(policy.TokenRequestOptions{Scopes: b.scopes})
+	}
+	if err != nil {
+		return nil, ensureNonRetriable(err)
+	}
+
+	res, err := req.Next()
+	if err != nil {
+		return nil, err
+	}
+
+	if res.StatusCode == http.StatusUnauthorized {
+		b.mainResource.Expire()
+		if res.Header.Get("WWW-Authenticate") != "" && b.authzHandler.OnChallenge != nil {
+			if err = b.authzHandler.OnChallenge(req, res, b.authenticateAndAuthorize(req)); err == nil {
+				res, err = req.Next()
+			}
+		}
+	}
+	return res, ensureNonRetriable(err)
+}
+
+func ensureNonRetriable(err error) error {
+	var nre errorinfo.NonRetriable
+	if err != nil && !errors.As(err, &nre) {
+		err = btpError{err}
+	}
+	return err
+}
+
+// btpError is a wrapper that ensures RetryPolicy doesn't retry requests BearerTokenPolicy couldn't authorize
+type btpError struct {
+	error
+}
+
+func (btpError) NonRetriable() {}
+
+var _ errorinfo.NonRetriable = (*btpError)(nil)

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime/policy_body_download.go

@@ -0,0 +1,73 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package runtime
+
+import (
+	"fmt"
+	"net/http"
+	"strings"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/exported"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+	"github.com/Azure/azure-sdk-for-go/sdk/internal/errorinfo"
+)
+
+// bodyDownloadPolicy creates a policy object that downloads the response's body to a []byte.
+func bodyDownloadPolicy(req *policy.Request) (*http.Response, error) {
+	resp, err := req.Next()
+	if err != nil {
+		return resp, err
+	}
+	var opValues bodyDownloadPolicyOpValues
+	// don't skip downloading error response bodies
+	if req.OperationValue(&opValues); opValues.Skip && resp.StatusCode < 400 {
+		return resp, err
+	}
+	// Either bodyDownloadPolicyOpValues was not specified (so skip is false)
+	// or it was specified and skip is false: don't skip downloading the body
+	_, err = exported.Payload(resp)
+	if err != nil {
+		return resp, newBodyDownloadError(err, req)
+	}
+	return resp, err
+}
+
+// bodyDownloadPolicyOpValues is the struct containing the per-operation values
+type bodyDownloadPolicyOpValues struct {
+	Skip bool
+}
+
+type bodyDownloadError struct {
+	err error
+}
+
+func newBodyDownloadError(err error, req *policy.Request) error {
+	// on failure, only retry the request for idempotent operations.
+	// we currently identify them as DELETE, GET, and PUT requests.
+	if m := strings.ToUpper(req.Raw().Method); m == http.MethodDelete || m == http.MethodGet || m == http.MethodPut {
+		// error is safe for retry
+		return err
+	}
+	// wrap error to avoid retries
+	return &bodyDownloadError{
+		err: err,
+	}
+}
+
+func (b *bodyDownloadError) Error() string {
+	return fmt.Sprintf("body download policy: %s", b.err.Error())
+}
+
+func (b *bodyDownloadError) NonRetriable() {
+	// marker method
+}
+
+func (b *bodyDownloadError) Unwrap() error {
+	return b.err
+}
+
+var _ errorinfo.NonRetriable = (*bodyDownloadError)(nil)

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime/policy_http_header.go

@@ -0,0 +1,39 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package runtime
+
+import (
+	"context"
+	"net/http"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/shared"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+)
+
+// newHTTPHeaderPolicy creates a policy object that adds custom HTTP headers to a request
+func httpHeaderPolicy(req *policy.Request) (*http.Response, error) {
+	// check if any custom HTTP headers have been specified
+	if header := req.Raw().Context().Value(shared.CtxWithHTTPHeaderKey{}); header != nil {
+		for k, v := range header.(http.Header) {
+			// use Set to replace any existing value
+			// it also canonicalizes the header key
+			req.Raw().Header.Set(k, v[0])
+			// add any remaining values
+			for i := 1; i < len(v); i++ {
+				req.Raw().Header.Add(k, v[i])
+			}
+		}
+	}
+	return req.Next()
+}
+
+// WithHTTPHeader adds the specified http.Header to the parent context.
+// Use this to specify custom HTTP headers at the API-call level.
+// Any overlapping headers will have their values replaced with the values specified here.
+func WithHTTPHeader(parent context.Context, header http.Header) context.Context {
+	return context.WithValue(parent, shared.CtxWithHTTPHeaderKey{}, header)
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime/policy_include_response.go

@@ -0,0 +1,34 @@
+//go:build go1.16
+// +build go1.16
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package runtime
+
+import (
+	"context"
+	"net/http"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/shared"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+)
+
+// includeResponsePolicy creates a policy that retrieves the raw HTTP response upon request
+func includeResponsePolicy(req *policy.Request) (*http.Response, error) {
+	resp, err := req.Next()
+	if resp == nil {
+		return resp, err
+	}
+	if httpOutRaw := req.Raw().Context().Value(shared.CtxIncludeResponseKey{}); httpOutRaw != nil {
+		httpOut := httpOutRaw.(**http.Response)
+		*httpOut = resp
+	}
+	return resp, err
+}
+
+// WithCaptureResponse applies the HTTP response retrieval annotation to the parent context.
+// The resp parameter will contain the HTTP response after the request has completed.
+func WithCaptureResponse(parent context.Context, resp **http.Response) context.Context {
+	return context.WithValue(parent, shared.CtxIncludeResponseKey{}, resp)
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime/policy_logging.go

@@ -0,0 +1,251 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package runtime
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"net/http"
+	"sort"
+	"strings"
+	"time"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/log"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/shared"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+	"github.com/Azure/azure-sdk-for-go/sdk/internal/diag"
+)
+
+type logPolicy struct {
+	includeBody    bool
+	allowedHeaders map[string]struct{}
+	allowedQP      map[string]struct{}
+}
+
+// NewLogPolicy creates a request/response logging policy object configured using the specified options.
+// Pass nil to accept the default values; this is the same as passing a zero-value options.
+func NewLogPolicy(o *policy.LogOptions) policy.Policy {
+	if o == nil {
+		o = &policy.LogOptions{}
+	}
+	// construct default hash set of allowed headers
+	allowedHeaders := map[string]struct{}{
+		"accept":                        {},
+		"cache-control":                 {},
+		"connection":                    {},
+		"content-length":                {},
+		"content-type":                  {},
+		"date":                          {},
+		"etag":                          {},
+		"expires":                       {},
+		"if-match":                      {},
+		"if-modified-since":             {},
+		"if-none-match":                 {},
+		"if-unmodified-since":           {},
+		"last-modified":                 {},
+		"ms-cv":                         {},
+		"pragma":                        {},
+		"request-id":                    {},
+		"retry-after":                   {},
+		"server":                        {},
+		"traceparent":                   {},
+		"transfer-encoding":             {},
+		"user-agent":                    {},
+		"www-authenticate":              {},
+		"x-ms-request-id":               {},
+		"x-ms-client-request-id":        {},
+		"x-ms-return-client-request-id": {},
+	}
+	// add any caller-specified allowed headers to the set
+	for _, ah := range o.AllowedHeaders {
+		allowedHeaders[strings.ToLower(ah)] = struct{}{}
+	}
+	// now do the same thing for query params
+	allowedQP := map[string]struct{}{
+		"api-version": {},
+	}
+	for _, qp := range o.AllowedQueryParams {
+		allowedQP[strings.ToLower(qp)] = struct{}{}
+	}
+	return &logPolicy{
+		includeBody:    o.IncludeBody,
+		allowedHeaders: allowedHeaders,
+		allowedQP:      allowedQP,
+	}
+}
+
+// logPolicyOpValues is the struct containing the per-operation values
+type logPolicyOpValues struct {
+	try   int32
+	start time.Time
+}
+
+func (p *logPolicy) Do(req *policy.Request) (*http.Response, error) {
+	// Get the per-operation values. These are saved in the Message's map so that they persist across each retry calling into this policy object.
+	var opValues logPolicyOpValues
+	if req.OperationValue(&opValues); opValues.start.IsZero() {
+		opValues.start = time.Now() // If this is the 1st try, record this operation's start time
+	}
+	opValues.try++ // The first try is #1 (not #0)
+	req.SetOperationValue(opValues)
+
+	// Log the outgoing request as informational
+	if log.Should(log.EventRequest) {
+		b := &bytes.Buffer{}
+		fmt.Fprintf(b, "==> OUTGOING REQUEST (Try=%d)\n", opValues.try)
+		p.writeRequestWithResponse(b, req, nil, nil)
+		var err error
+		if p.includeBody {
+			err = writeReqBody(req, b)
+		}
+		log.Write(log.EventRequest, b.String())
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	// Set the time for this particular retry operation and then Do the operation.
+	tryStart := time.Now()
+	response, err := req.Next() // Make the request
+	tryEnd := time.Now()
+	tryDuration := tryEnd.Sub(tryStart)
+	opDuration := tryEnd.Sub(opValues.start)
+
+	if log.Should(log.EventResponse) {
+		// We're going to log this; build the string to log
+		b := &bytes.Buffer{}
+		fmt.Fprintf(b, "==> REQUEST/RESPONSE (Try=%d/%v, OpTime=%v) -- ", opValues.try, tryDuration, opDuration)
+		if err != nil { // This HTTP request did not get a response from the service
+			fmt.Fprint(b, "REQUEST ERROR\n")
+		} else {
+			fmt.Fprint(b, "RESPONSE RECEIVED\n")
+		}
+
+		p.writeRequestWithResponse(b, req, response, err)
+		if err != nil {
+			// skip frames runtime.Callers() and runtime.StackTrace()
+			b.WriteString(diag.StackTrace(2, 32))
+		} else if p.includeBody {
+			err = writeRespBody(response, b)
+		}
+		log.Write(log.EventResponse, b.String())
+	}
+	return response, err
+}
+
+const redactedValue = "REDACTED"
+
+// writeRequestWithResponse appends a formatted HTTP request into a Buffer. If request and/or err are
+// not nil, then these are also written into the Buffer.
+func (p *logPolicy) writeRequestWithResponse(b *bytes.Buffer, req *policy.Request, resp *http.Response, err error) {
+	// redact applicable query params
+	cpURL := *req.Raw().URL
+	qp := cpURL.Query()
+	for k := range qp {
+		if _, ok := p.allowedQP[strings.ToLower(k)]; !ok {
+			qp.Set(k, redactedValue)
+		}
+	}
+	cpURL.RawQuery = qp.Encode()
+	// Write the request into the buffer.
+	fmt.Fprint(b, "   "+req.Raw().Method+" "+cpURL.String()+"\n")
+	p.writeHeader(b, req.Raw().Header)
+	if resp != nil {
+		fmt.Fprintln(b, "   --------------------------------------------------------------------------------")
+		fmt.Fprint(b, "   RESPONSE Status: "+resp.Status+"\n")
+		p.writeHeader(b, resp.Header)
+	}
+	if err != nil {
+		fmt.Fprintln(b, "   --------------------------------------------------------------------------------")
+		fmt.Fprint(b, "   ERROR:\n"+err.Error()+"\n")
+	}
+}
+
+// formatHeaders appends an HTTP request's or response's header into a Buffer.
+func (p *logPolicy) writeHeader(b *bytes.Buffer, header http.Header) {
+	if len(header) == 0 {
+		b.WriteString("   (no headers)\n")
+		return
+	}
+	keys := make([]string, 0, len(header))
+	// Alphabetize the headers
+	for k := range header {
+		keys = append(keys, k)
+	}
+	sort.Strings(keys)
+	for _, k := range keys {
+		value := header.Get(k)
+		// redact all header values not in the allow-list
+		if _, ok := p.allowedHeaders[strings.ToLower(k)]; !ok {
+			value = redactedValue
+		}
+		fmt.Fprintf(b, "   %s: %+v\n", k, value)
+	}
+}
+
+// returns true if the request/response body should be logged.
+// this is determined by looking at the content-type header value.
+func shouldLogBody(b *bytes.Buffer, contentType string) bool {
+	contentType = strings.ToLower(contentType)
+	if strings.HasPrefix(contentType, "text") ||
+		strings.Contains(contentType, "json") ||
+		strings.Contains(contentType, "xml") {
+		return true
+	}
+	fmt.Fprintf(b, "   Skip logging body for %s\n", contentType)
+	return false
+}
+
+// writes to a buffer, used for logging purposes
+func writeReqBody(req *policy.Request, b *bytes.Buffer) error {
+	if req.Raw().Body == nil {
+		fmt.Fprint(b, "   Request contained no body\n")
+		return nil
+	}
+	if ct := req.Raw().Header.Get(shared.HeaderContentType); !shouldLogBody(b, ct) {
+		return nil
+	}
+	body, err := io.ReadAll(req.Raw().Body)
+	if err != nil {
+		fmt.Fprintf(b, "   Failed to read request body: %s\n", err.Error())
+		return err
+	}
+	if err := req.RewindBody(); err != nil {
+		return err
+	}
+	logBody(b, body)
+	return nil
+}
+
+// writes to a buffer, used for logging purposes
+func writeRespBody(resp *http.Response, b *bytes.Buffer) error {
+	ct := resp.Header.Get(shared.HeaderContentType)
+	if ct == "" {
+		fmt.Fprint(b, "   Response contained no body\n")
+		return nil
+	} else if !shouldLogBody(b, ct) {
+		return nil
+	}
+	body, err := Payload(resp)
+	if err != nil {
+		fmt.Fprintf(b, "   Failed to read response body: %s\n", err.Error())
+		return err
+	}
+	if len(body) > 0 {
+		logBody(b, body)
+	} else {
+		fmt.Fprint(b, "   Response contained no body\n")
+	}
+	return nil
+}
+
+func logBody(b *bytes.Buffer, body []byte) {
+	fmt.Fprintln(b, "   --------------------------------------------------------------------------------")
+	fmt.Fprintln(b, string(body))
+	fmt.Fprintln(b, "   --------------------------------------------------------------------------------")
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime/policy_request_id.go

@@ -0,0 +1,34 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package runtime
+
+import (
+	"net/http"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+	"github.com/Azure/azure-sdk-for-go/sdk/internal/uuid"
+)
+
+type requestIDPolicy struct{}
+
+// NewRequestIDPolicy returns a policy that add the x-ms-client-request-id header
+func NewRequestIDPolicy() policy.Policy {
+	return &requestIDPolicy{}
+}
+
+func (r *requestIDPolicy) Do(req *policy.Request) (*http.Response, error) {
+	const requestIdHeader = "x-ms-client-request-id"
+	if req.Raw().Header.Get(requestIdHeader) == "" {
+		id, err := uuid.New()
+		if err != nil {
+			return nil, err
+		}
+		req.Raw().Header.Set(requestIdHeader, id.String())
+	}
+
+	return req.Next()
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime/policy_retry.go

@@ -0,0 +1,251 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package runtime
+
+import (
+	"context"
+	"errors"
+	"io"
+	"math"
+	"math/rand"
+	"net/http"
+	"time"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/log"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/shared"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+	"github.com/Azure/azure-sdk-for-go/sdk/internal/errorinfo"
+)
+
+const (
+	defaultMaxRetries = 3
+)
+
+func setDefaults(o *policy.RetryOptions) {
+	if o.MaxRetries == 0 {
+		o.MaxRetries = defaultMaxRetries
+	} else if o.MaxRetries < 0 {
+		o.MaxRetries = 0
+	}
+
+	// SDK guidelines specify the default MaxRetryDelay is 60 seconds
+	if o.MaxRetryDelay == 0 {
+		o.MaxRetryDelay = 60 * time.Second
+	} else if o.MaxRetryDelay < 0 {
+		// not really an unlimited cap, but sufficiently large enough to be considered as such
+		o.MaxRetryDelay = math.MaxInt64
+	}
+	if o.RetryDelay == 0 {
+		o.RetryDelay = 800 * time.Millisecond
+	} else if o.RetryDelay < 0 {
+		o.RetryDelay = 0
+	}
+	if o.StatusCodes == nil {
+		// NOTE: if you change this list, you MUST update the docs in policy/policy.go
+		o.StatusCodes = []int{
+			http.StatusRequestTimeout,      // 408
+			http.StatusTooManyRequests,     // 429
+			http.StatusInternalServerError, // 500
+			http.StatusBadGateway,          // 502
+			http.StatusServiceUnavailable,  // 503
+			http.StatusGatewayTimeout,      // 504
+		}
+	}
+}
+
+func calcDelay(o policy.RetryOptions, try int32) time.Duration { // try is >=1; never 0
+	pow := func(number int64, exponent int32) int64 { // pow is nested helper function
+		var result int64 = 1
+		for n := int32(0); n < exponent; n++ {
+			result *= number
+		}
+		return result
+	}
+
+	delay := time.Duration(pow(2, try)-1) * o.RetryDelay
+
+	// Introduce some jitter:  [0.0, 1.0) / 2 = [0.0, 0.5) + 0.8 = [0.8, 1.3)
+	delay = time.Duration(delay.Seconds() * (rand.Float64()/2 + 0.8) * float64(time.Second)) // NOTE: We want math/rand; not crypto/rand
+	if delay > o.MaxRetryDelay {
+		delay = o.MaxRetryDelay
+	}
+	return delay
+}
+
+// NewRetryPolicy creates a policy object configured using the specified options.
+// Pass nil to accept the default values; this is the same as passing a zero-value options.
+func NewRetryPolicy(o *policy.RetryOptions) policy.Policy {
+	if o == nil {
+		o = &policy.RetryOptions{}
+	}
+	p := &retryPolicy{options: *o}
+	return p
+}
+
+type retryPolicy struct {
+	options policy.RetryOptions
+}
+
+func (p *retryPolicy) Do(req *policy.Request) (resp *http.Response, err error) {
+	options := p.options
+	// check if the retry options have been overridden for this call
+	if override := req.Raw().Context().Value(shared.CtxWithRetryOptionsKey{}); override != nil {
+		options = override.(policy.RetryOptions)
+	}
+	setDefaults(&options)
+	// Exponential retry algorithm: ((2 ^ attempt) - 1) * delay * random(0.8, 1.2)
+	// When to retry: connection failure or temporary/timeout.
+	var rwbody *retryableRequestBody
+	if req.Body() != nil {
+		// wrap the body so we control when it's actually closed.
+		// do this outside the for loop so defers don't accumulate.
+		rwbody = &retryableRequestBody{body: req.Body()}
+		defer rwbody.realClose()
+	}
+	try := int32(1)
+	for {
+		resp = nil // reset
+		log.Writef(log.EventRetryPolicy, "=====> Try=%d", try)
+
+		// For each try, seek to the beginning of the Body stream. We do this even for the 1st try because
+		// the stream may not be at offset 0 when we first get it and we want the same behavior for the
+		// 1st try as for additional tries.
+		err = req.RewindBody()
+		if err != nil {
+			return
+		}
+		// RewindBody() restores Raw().Body to its original state, so set our rewindable after
+		if rwbody != nil {
+			req.Raw().Body = rwbody
+		}
+
+		if options.TryTimeout == 0 {
+			resp, err = req.Next()
+		} else {
+			// Set the per-try time for this particular retry operation and then Do the operation.
+			tryCtx, tryCancel := context.WithTimeout(req.Raw().Context(), options.TryTimeout)
+			clone := req.Clone(tryCtx)
+			resp, err = clone.Next() // Make the request
+			// if the body was already downloaded or there was an error it's safe to cancel the context now
+			if err != nil {
+				tryCancel()
+			} else if _, ok := resp.Body.(*shared.NopClosingBytesReader); ok {
+				tryCancel()
+			} else {
+				// must cancel the context after the body has been read and closed
+				resp.Body = &contextCancelReadCloser{cf: tryCancel, body: resp.Body}
+			}
+		}
+		if err == nil {
+			log.Writef(log.EventRetryPolicy, "response %d", resp.StatusCode)
+		} else {
+			log.Writef(log.EventRetryPolicy, "error %v", err)
+		}
+
+		if err == nil && !HasStatusCode(resp, options.StatusCodes...) {
+			// if there is no error and the response code isn't in the list of retry codes then we're done.
+			log.Write(log.EventRetryPolicy, "exit due to non-retriable status code")
+			return
+		} else if ctxErr := req.Raw().Context().Err(); ctxErr != nil {
+			// don't retry if the parent context has been cancelled or its deadline exceeded
+			err = ctxErr
+			log.Writef(log.EventRetryPolicy, "abort due to %v", err)
+			return
+		}
+
+		// check if the error is not retriable
+		var nre errorinfo.NonRetriable
+		if errors.As(err, &nre) {
+			// the error says it's not retriable so don't retry
+			log.Writef(log.EventRetryPolicy, "non-retriable error %T", nre)
+			return
+		}
+
+		if try == options.MaxRetries+1 {
+			// max number of tries has been reached, don't sleep again
+			log.Writef(log.EventRetryPolicy, "MaxRetries %d exceeded", options.MaxRetries)
+			return
+		}
+
+		// use the delay from retry-after if available
+		delay := shared.RetryAfter(resp)
+		if delay <= 0 {
+			delay = calcDelay(options, try)
+		} else if delay > options.MaxRetryDelay {
+			// the retry-after delay exceeds the the cap so don't retry
+			log.Writef(log.EventRetryPolicy, "Retry-After delay %s exceeds MaxRetryDelay of %s", delay, options.MaxRetryDelay)
+			return
+		}
+
+		// drain before retrying so nothing is leaked
+		Drain(resp)
+
+		log.Writef(log.EventRetryPolicy, "End Try #%d, Delay=%v", try, delay)
+		select {
+		case <-time.After(delay):
+			try++
+		case <-req.Raw().Context().Done():
+			err = req.Raw().Context().Err()
+			log.Writef(log.EventRetryPolicy, "abort due to %v", err)
+			return
+		}
+	}
+}
+
+// WithRetryOptions adds the specified RetryOptions to the parent context.
+// Use this to specify custom RetryOptions at the API-call level.
+func WithRetryOptions(parent context.Context, options policy.RetryOptions) context.Context {
+	return context.WithValue(parent, shared.CtxWithRetryOptionsKey{}, options)
+}
+
+// ********** The following type/methods implement the retryableRequestBody (a ReadSeekCloser)
+
+// This struct is used when sending a body to the network
+type retryableRequestBody struct {
+	body io.ReadSeeker // Seeking is required to support retries
+}
+
+// Read reads a block of data from an inner stream and reports progress
+func (b *retryableRequestBody) Read(p []byte) (n int, err error) {
+	return b.body.Read(p)
+}
+
+func (b *retryableRequestBody) Seek(offset int64, whence int) (offsetFromStart int64, err error) {
+	return b.body.Seek(offset, whence)
+}
+
+func (b *retryableRequestBody) Close() error {
+	// We don't want the underlying transport to close the request body on transient failures so this is a nop.
+	// The retry policy closes the request body upon success.
+	return nil
+}
+
+func (b *retryableRequestBody) realClose() error {
+	if c, ok := b.body.(io.Closer); ok {
+		return c.Close()
+	}
+	return nil
+}
+
+// ********** The following type/methods implement the contextCancelReadCloser
+
+// contextCancelReadCloser combines an io.ReadCloser with a cancel func.
+// it ensures the cancel func is invoked once the body has been read and closed.
+type contextCancelReadCloser struct {
+	cf   context.CancelFunc
+	body io.ReadCloser
+}
+
+func (rc *contextCancelReadCloser) Read(p []byte) (n int, err error) {
+	return rc.body.Read(p)
+}
+
+func (rc *contextCancelReadCloser) Close() error {
+	err := rc.body.Close()
+	rc.cf()
+	return err
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime/policy_telemetry.go

@@ -0,0 +1,79 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package runtime
+
+import (
+	"bytes"
+	"fmt"
+	"net/http"
+	"os"
+	"runtime"
+	"strings"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/shared"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+)
+
+type telemetryPolicy struct {
+	telemetryValue string
+}
+
+// NewTelemetryPolicy creates a telemetry policy object that adds telemetry information to outgoing HTTP requests.
+// The format is [<application_id> ]azsdk-go-<mod>/<ver> <platform_info>.
+// Pass nil to accept the default values; this is the same as passing a zero-value options.
+func NewTelemetryPolicy(mod, ver string, o *policy.TelemetryOptions) policy.Policy {
+	if o == nil {
+		o = &policy.TelemetryOptions{}
+	}
+	tp := telemetryPolicy{}
+	if o.Disabled {
+		return &tp
+	}
+	b := &bytes.Buffer{}
+	// normalize ApplicationID
+	if o.ApplicationID != "" {
+		o.ApplicationID = strings.ReplaceAll(o.ApplicationID, " ", "/")
+		if len(o.ApplicationID) > 24 {
+			o.ApplicationID = o.ApplicationID[:24]
+		}
+		b.WriteString(o.ApplicationID)
+		b.WriteRune(' ')
+	}
+	b.WriteString(formatTelemetry(mod, ver))
+	b.WriteRune(' ')
+	b.WriteString(platformInfo)
+	tp.telemetryValue = b.String()
+	return &tp
+}
+
+func formatTelemetry(comp, ver string) string {
+	return fmt.Sprintf("azsdk-go-%s/%s", comp, ver)
+}
+
+func (p telemetryPolicy) Do(req *policy.Request) (*http.Response, error) {
+	if p.telemetryValue == "" {
+		return req.Next()
+	}
+	// preserve the existing User-Agent string
+	if ua := req.Raw().Header.Get(shared.HeaderUserAgent); ua != "" {
+		p.telemetryValue = fmt.Sprintf("%s %s", p.telemetryValue, ua)
+	}
+	req.Raw().Header.Set(shared.HeaderUserAgent, p.telemetryValue)
+	return req.Next()
+}
+
+// NOTE: the ONLY function that should write to this variable is this func
+var platformInfo = func() string {
+	operatingSystem := runtime.GOOS // Default OS string
+	switch operatingSystem {
+	case "windows":
+		operatingSystem = os.Getenv("OS") // Get more specific OS information
+	case "linux": // accept default OS info
+	case "freebsd": //  accept default OS info
+	}
+	return fmt.Sprintf("(%s; %s)", runtime.Version(), operatingSystem)
+}()

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime/poller.go

@@ -0,0 +1,326 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package runtime
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"flag"
+	"fmt"
+	"net/http"
+	"time"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/exported"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/log"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/pollers"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/pollers/async"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/pollers/body"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/pollers/loc"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/pollers/op"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/shared"
+)
+
+// FinalStateVia is the enumerated type for the possible final-state-via values.
+type FinalStateVia = pollers.FinalStateVia
+
+const (
+	// FinalStateViaAzureAsyncOp indicates the final payload comes from the Azure-AsyncOperation URL.
+	FinalStateViaAzureAsyncOp = pollers.FinalStateViaAzureAsyncOp
+
+	// FinalStateViaLocation indicates the final payload comes from the Location URL.
+	FinalStateViaLocation = pollers.FinalStateViaLocation
+
+	// FinalStateViaOriginalURI indicates the final payload comes from the original URL.
+	FinalStateViaOriginalURI = pollers.FinalStateViaOriginalURI
+
+	// FinalStateViaOpLocation indicates the final payload comes from the Operation-Location URL.
+	FinalStateViaOpLocation = pollers.FinalStateViaOpLocation
+)
+
+// NewPollerOptions contains the optional parameters for NewPoller.
+type NewPollerOptions[T any] struct {
+	// FinalStateVia contains the final-state-via value for the LRO.
+	FinalStateVia FinalStateVia
+
+	// Response contains a preconstructed response type.
+	// The final payload will be unmarshaled into it and returned.
+	Response *T
+
+	// Handler[T] contains a custom polling implementation.
+	Handler PollingHandler[T]
+}
+
+// NewPoller creates a Poller based on the provided initial response.
+func NewPoller[T any](resp *http.Response, pl exported.Pipeline, options *NewPollerOptions[T]) (*Poller[T], error) {
+	if options == nil {
+		options = &NewPollerOptions[T]{}
+	}
+	result := options.Response
+	if result == nil {
+		result = new(T)
+	}
+	if options.Handler != nil {
+		return &Poller[T]{
+			op:     options.Handler,
+			resp:   resp,
+			result: result,
+		}, nil
+	}
+
+	defer resp.Body.Close()
+	// this is a back-stop in case the swagger is incorrect (i.e. missing one or more status codes for success).
+	// ideally the codegen should return an error if the initial response failed and not even create a poller.
+	if !pollers.StatusCodeValid(resp) {
+		return nil, errors.New("the operation failed or was cancelled")
+	}
+
+	// determine the polling method
+	var opr PollingHandler[T]
+	var err error
+	if async.Applicable(resp) {
+		// async poller must be checked first as it can also have a location header
+		opr, err = async.New[T](pl, resp, options.FinalStateVia)
+	} else if op.Applicable(resp) {
+		// op poller must be checked before loc as it can also have a location header
+		opr, err = op.New[T](pl, resp, options.FinalStateVia)
+	} else if loc.Applicable(resp) {
+		opr, err = loc.New[T](pl, resp)
+	} else if body.Applicable(resp) {
+		// must test body poller last as it's a subset of the other pollers.
+		// TODO: this is ambiguous for PATCH/PUT if it returns a 200 with no polling headers (sync completion)
+		opr, err = body.New[T](pl, resp)
+	} else if m := resp.Request.Method; resp.StatusCode == http.StatusAccepted && (m == http.MethodDelete || m == http.MethodPost) {
+		// if we get here it means we have a 202 with no polling headers.
+		// for DELETE and POST this is a hard error per ARM RPC spec.
+		return nil, errors.New("response is missing polling URL")
+	} else {
+		opr, err = pollers.NewNopPoller[T](resp)
+	}
+
+	if err != nil {
+		return nil, err
+	}
+	return &Poller[T]{
+		op:     opr,
+		resp:   resp,
+		result: result,
+	}, nil
+}
+
+// NewPollerFromResumeTokenOptions contains the optional parameters for NewPollerFromResumeToken.
+type NewPollerFromResumeTokenOptions[T any] struct {
+	// Response contains a preconstructed response type.
+	// The final payload will be unmarshaled into it and returned.
+	Response *T
+
+	// Handler[T] contains a custom polling implementation.
+	Handler PollingHandler[T]
+}
+
+// NewPollerFromResumeToken creates a Poller from a resume token string.
+func NewPollerFromResumeToken[T any](token string, pl exported.Pipeline, options *NewPollerFromResumeTokenOptions[T]) (*Poller[T], error) {
+	if options == nil {
+		options = &NewPollerFromResumeTokenOptions[T]{}
+	}
+	result := options.Response
+	if result == nil {
+		result = new(T)
+	}
+
+	if err := pollers.IsTokenValid[T](token); err != nil {
+		return nil, err
+	}
+	raw, err := pollers.ExtractToken(token)
+	if err != nil {
+		return nil, err
+	}
+	var asJSON map[string]interface{}
+	if err := json.Unmarshal(raw, &asJSON); err != nil {
+		return nil, err
+	}
+
+	opr := options.Handler
+	// now rehydrate the poller based on the encoded poller type
+	if async.CanResume(asJSON) {
+		opr, _ = async.New[T](pl, nil, "")
+	} else if body.CanResume(asJSON) {
+		opr, _ = body.New[T](pl, nil)
+	} else if loc.CanResume(asJSON) {
+		opr, _ = loc.New[T](pl, nil)
+	} else if op.CanResume(asJSON) {
+		opr, _ = op.New[T](pl, nil, "")
+	} else if opr != nil {
+		log.Writef(log.EventLRO, "Resuming custom poller %T.", opr)
+	} else {
+		return nil, fmt.Errorf("unhandled poller token %s", string(raw))
+	}
+	if err := json.Unmarshal(raw, &opr); err != nil {
+		return nil, err
+	}
+	return &Poller[T]{
+		op:     opr,
+		result: result,
+	}, nil
+}
+
+// PollingHandler[T] abstracts the differences among poller implementations.
+type PollingHandler[T any] interface {
+	// Done returns true if the LRO has reached a terminal state.
+	Done() bool
+
+	// Poll fetches the latest state of the LRO.
+	Poll(context.Context) (*http.Response, error)
+
+	// Result is called once the LRO has reached a terminal state. It populates the out parameter
+	// with the result of the operation.
+	Result(ctx context.Context, out *T) error
+}
+
+// Poller encapsulates a long-running operation, providing polling facilities until the operation reaches a terminal state.
+type Poller[T any] struct {
+	op     PollingHandler[T]
+	resp   *http.Response
+	err    error
+	result *T
+	done   bool
+}
+
+// PollUntilDoneOptions contains the optional values for the Poller[T].PollUntilDone() method.
+type PollUntilDoneOptions struct {
+	// Frequency is the time to wait between polling intervals in absence of a Retry-After header. Allowed minimum is one second.
+	// Pass zero to accept the default value (30s).
+	Frequency time.Duration
+}
+
+// PollUntilDone will poll the service endpoint until a terminal state is reached, an error is received, or the context expires.
+// It internally uses Poll(), Done(), and Result() in its polling loop, sleeping for the specified duration between intervals.
+// options: pass nil to accept the default values.
+// NOTE: the default polling frequency is 30 seconds which works well for most operations.  However, some operations might
+// benefit from a shorter or longer duration.
+func (p *Poller[T]) PollUntilDone(ctx context.Context, options *PollUntilDoneOptions) (T, error) {
+	if options == nil {
+		options = &PollUntilDoneOptions{}
+	}
+	cp := *options
+	if cp.Frequency == 0 {
+		cp.Frequency = 30 * time.Second
+	}
+
+	// skip the floor check when executing tests so they don't take so long
+	if isTest := flag.Lookup("test.v"); isTest == nil && cp.Frequency < time.Second {
+		return *new(T), errors.New("polling frequency minimum is one second")
+	}
+
+	start := time.Now()
+	logPollUntilDoneExit := func(v interface{}) {
+		log.Writef(log.EventLRO, "END PollUntilDone() for %T: %v, total time: %s", p.op, v, time.Since(start))
+	}
+	log.Writef(log.EventLRO, "BEGIN PollUntilDone() for %T", p.op)
+	if p.resp != nil {
+		// initial check for a retry-after header existing on the initial response
+		if retryAfter := shared.RetryAfter(p.resp); retryAfter > 0 {
+			log.Writef(log.EventLRO, "initial Retry-After delay for %s", retryAfter.String())
+			if err := shared.Delay(ctx, retryAfter); err != nil {
+				logPollUntilDoneExit(err)
+				return *new(T), err
+			}
+		}
+	}
+	// begin polling the endpoint until a terminal state is reached
+	for {
+		resp, err := p.Poll(ctx)
+		if err != nil {
+			logPollUntilDoneExit(err)
+			return *new(T), err
+		}
+		if p.Done() {
+			logPollUntilDoneExit("succeeded")
+			return p.Result(ctx)
+		}
+		d := cp.Frequency
+		if retryAfter := shared.RetryAfter(resp); retryAfter > 0 {
+			log.Writef(log.EventLRO, "Retry-After delay for %s", retryAfter.String())
+			d = retryAfter
+		} else {
+			log.Writef(log.EventLRO, "delay for %s", d.String())
+		}
+		if err = shared.Delay(ctx, d); err != nil {
+			logPollUntilDoneExit(err)
+			return *new(T), err
+		}
+	}
+}
+
+// Poll fetches the latest state of the LRO.  It returns an HTTP response or error.
+// If Poll succeeds, the poller's state is updated and the HTTP response is returned.
+// If Poll fails, the poller's state is unmodified and the error is returned.
+// Calling Poll on an LRO that has reached a terminal state will return the last HTTP response.
+func (p *Poller[T]) Poll(ctx context.Context) (*http.Response, error) {
+	if p.Done() {
+		// the LRO has reached a terminal state, don't poll again
+		return p.resp, nil
+	}
+	resp, err := p.op.Poll(ctx)
+	if err != nil {
+		return nil, err
+	}
+	p.resp = resp
+	return p.resp, nil
+}
+
+// Done returns true if the LRO has reached a terminal state.
+// Once a terminal state is reached, call Result().
+func (p *Poller[T]) Done() bool {
+	return p.op.Done()
+}
+
+// Result returns the result of the LRO and is meant to be used in conjunction with Poll and Done.
+// If the LRO completed successfully, a populated instance of T is returned.
+// If the LRO failed or was canceled, an *azcore.ResponseError error is returned.
+// Calling this on an LRO in a non-terminal state will return an error.
+func (p *Poller[T]) Result(ctx context.Context) (T, error) {
+	if !p.Done() {
+		return *new(T), errors.New("poller is in a non-terminal state")
+	}
+	if p.done {
+		// the result has already been retrieved, return the cached value
+		if p.err != nil {
+			return *new(T), p.err
+		}
+		return *p.result, nil
+	}
+	err := p.op.Result(ctx, p.result)
+	var respErr *exported.ResponseError
+	if errors.As(err, &respErr) {
+		// the LRO failed. record the error
+		p.err = err
+	} else if err != nil {
+		// the call to Result failed, don't cache anything in this case
+		return *new(T), err
+	}
+	p.done = true
+	if p.err != nil {
+		return *new(T), p.err
+	}
+	return *p.result, nil
+}
+
+// ResumeToken returns a value representing the poller that can be used to resume
+// the LRO at a later time. ResumeTokens are unique per service operation.
+// The token's format should be considered opaque and is subject to change.
+// Calling this on an LRO in a terminal state will return an error.
+func (p *Poller[T]) ResumeToken() (string, error) {
+	if p.Done() {
+		return "", errors.New("poller is in a terminal state")
+	}
+	tk, err := pollers.NewResumeToken[T](p.op)
+	if err != nil {
+		return "", err
+	}
+	return tk, err
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime/request.go

@@ -0,0 +1,248 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package runtime
+
+import (
+	"bytes"
+	"context"
+	"encoding/base64"
+	"encoding/json"
+	"encoding/xml"
+	"fmt"
+	"io"
+	"mime/multipart"
+	"os"
+	"path"
+	"reflect"
+	"strings"
+	"time"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/exported"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/shared"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+)
+
+// Base64Encoding is usesd to specify which base-64 encoder/decoder to use when
+// encoding/decoding a slice of bytes to/from a string.
+type Base64Encoding int
+
+const (
+	// Base64StdFormat uses base64.StdEncoding for encoding and decoding payloads.
+	Base64StdFormat Base64Encoding = 0
+
+	// Base64URLFormat uses base64.RawURLEncoding for encoding and decoding payloads.
+	Base64URLFormat Base64Encoding = 1
+)
+
+// NewRequest creates a new policy.Request with the specified input.
+// The endpoint MUST be properly encoded before calling this function.
+func NewRequest(ctx context.Context, httpMethod string, endpoint string) (*policy.Request, error) {
+	return exported.NewRequest(ctx, httpMethod, endpoint)
+}
+
+// JoinPaths concatenates multiple URL path segments into one path,
+// inserting path separation characters as required. JoinPaths will preserve
+// query parameters in the root path
+func JoinPaths(root string, paths ...string) string {
+	if len(paths) == 0 {
+		return root
+	}
+
+	qps := ""
+	if strings.Contains(root, "?") {
+		splitPath := strings.Split(root, "?")
+		root, qps = splitPath[0], splitPath[1]
+	}
+
+	p := path.Join(paths...)
+	// path.Join will remove any trailing slashes.
+	// if one was provided, preserve it.
+	if strings.HasSuffix(paths[len(paths)-1], "/") && !strings.HasSuffix(p, "/") {
+		p += "/"
+	}
+
+	if qps != "" {
+		p = p + "?" + qps
+	}
+
+	if strings.HasSuffix(root, "/") && strings.HasPrefix(p, "/") {
+		root = root[:len(root)-1]
+	} else if !strings.HasSuffix(root, "/") && !strings.HasPrefix(p, "/") {
+		p = "/" + p
+	}
+	return root + p
+}
+
+// EncodeByteArray will base-64 encode the byte slice v.
+func EncodeByteArray(v []byte, format Base64Encoding) string {
+	if format == Base64URLFormat {
+		return base64.RawURLEncoding.EncodeToString(v)
+	}
+	return base64.StdEncoding.EncodeToString(v)
+}
+
+// MarshalAsByteArray will base-64 encode the byte slice v, then calls SetBody.
+// The encoded value is treated as a JSON string.
+func MarshalAsByteArray(req *policy.Request, v []byte, format Base64Encoding) error {
+	// send as a JSON string
+	encode := fmt.Sprintf("\"%s\"", EncodeByteArray(v, format))
+	return req.SetBody(exported.NopCloser(strings.NewReader(encode)), shared.ContentTypeAppJSON)
+}
+
+// MarshalAsJSON calls json.Marshal() to get the JSON encoding of v then calls SetBody.
+func MarshalAsJSON(req *policy.Request, v interface{}) error {
+	if omit := os.Getenv("AZURE_SDK_GO_OMIT_READONLY"); omit == "true" {
+		v = cloneWithoutReadOnlyFields(v)
+	}
+	b, err := json.Marshal(v)
+	if err != nil {
+		return fmt.Errorf("error marshalling type %T: %s", v, err)
+	}
+	return req.SetBody(exported.NopCloser(bytes.NewReader(b)), shared.ContentTypeAppJSON)
+}
+
+// MarshalAsXML calls xml.Marshal() to get the XML encoding of v then calls SetBody.
+func MarshalAsXML(req *policy.Request, v interface{}) error {
+	b, err := xml.Marshal(v)
+	if err != nil {
+		return fmt.Errorf("error marshalling type %T: %s", v, err)
+	}
+	// inclue the XML header as some services require it
+	b = []byte(xml.Header + string(b))
+	return req.SetBody(exported.NopCloser(bytes.NewReader(b)), shared.ContentTypeAppXML)
+}
+
+// SetMultipartFormData writes the specified keys/values as multi-part form
+// fields with the specified value.  File content must be specified as a ReadSeekCloser.
+// All other values are treated as string values.
+func SetMultipartFormData(req *policy.Request, formData map[string]interface{}) error {
+	body := bytes.Buffer{}
+	writer := multipart.NewWriter(&body)
+
+	writeContent := func(fieldname, filename string, src io.Reader) error {
+		fd, err := writer.CreateFormFile(fieldname, filename)
+		if err != nil {
+			return err
+		}
+		// copy the data to the form file
+		if _, err = io.Copy(fd, src); err != nil {
+			return err
+		}
+		return nil
+	}
+
+	for k, v := range formData {
+		if rsc, ok := v.(io.ReadSeekCloser); ok {
+			if err := writeContent(k, k, rsc); err != nil {
+				return err
+			}
+			continue
+		} else if rscs, ok := v.([]io.ReadSeekCloser); ok {
+			for _, rsc := range rscs {
+				if err := writeContent(k, k, rsc); err != nil {
+					return err
+				}
+			}
+			continue
+		}
+		// ensure the value is in string format
+		s, ok := v.(string)
+		if !ok {
+			s = fmt.Sprintf("%v", v)
+		}
+		if err := writer.WriteField(k, s); err != nil {
+			return err
+		}
+	}
+	if err := writer.Close(); err != nil {
+		return err
+	}
+	return req.SetBody(exported.NopCloser(bytes.NewReader(body.Bytes())), writer.FormDataContentType())
+}
+
+// SkipBodyDownload will disable automatic downloading of the response body.
+func SkipBodyDownload(req *policy.Request) {
+	req.SetOperationValue(bodyDownloadPolicyOpValues{Skip: true})
+}
+
+// returns a clone of the object graph pointed to by v, omitting values of all read-only
+// fields. if there are no read-only fields in the object graph, no clone is created.
+func cloneWithoutReadOnlyFields(v interface{}) interface{} {
+	val := reflect.Indirect(reflect.ValueOf(v))
+	if val.Kind() != reflect.Struct {
+		// not a struct, skip
+		return v
+	}
+	// first walk the graph to find any R/O fields.
+	// if there aren't any, skip cloning the graph.
+	if !recursiveFindReadOnlyField(val) {
+		return v
+	}
+	return recursiveCloneWithoutReadOnlyFields(val)
+}
+
+// returns true if any field in the object graph of val contains the `azure:"ro"` tag value
+func recursiveFindReadOnlyField(val reflect.Value) bool {
+	t := val.Type()
+	// iterate over the fields, looking for the "azure" tag.
+	for i := 0; i < t.NumField(); i++ {
+		field := t.Field(i)
+		aztag := field.Tag.Get("azure")
+		if azureTagIsReadOnly(aztag) {
+			return true
+		} else if reflect.Indirect(val.Field(i)).Kind() == reflect.Struct && recursiveFindReadOnlyField(reflect.Indirect(val.Field(i))) {
+			return true
+		}
+	}
+	return false
+}
+
+// clones the object graph of val.  all non-R/O properties are copied to the clone
+func recursiveCloneWithoutReadOnlyFields(val reflect.Value) interface{} {
+	t := val.Type()
+	clone := reflect.New(t)
+	// iterate over the fields, looking for the "azure" tag.
+	for i := 0; i < t.NumField(); i++ {
+		field := t.Field(i)
+		aztag := field.Tag.Get("azure")
+		if azureTagIsReadOnly(aztag) {
+			// omit from payload
+			continue
+		}
+		// clone field will receive the same value as the source field...
+		value := val.Field(i)
+		v := reflect.Indirect(value)
+		if v.IsValid() && v.Type() != reflect.TypeOf(time.Time{}) && v.Kind() == reflect.Struct {
+			// ...unless the source value is a struct, in which case we recurse to clone that struct.
+			// (We can't recursively clone time.Time because it contains unexported fields.)
+			c := recursiveCloneWithoutReadOnlyFields(v)
+			if field.Anonymous {
+				// NOTE: this does not handle the case of embedded fields of unexported struct types.
+				// this should be ok as we don't generate any code like this at present
+				value = reflect.Indirect(reflect.ValueOf(c))
+			} else {
+				value = reflect.ValueOf(c)
+			}
+		}
+		reflect.Indirect(clone).Field(i).Set(value)
+	}
+	return clone.Interface()
+}
+
+// returns true if the "azure" tag contains the option "ro"
+func azureTagIsReadOnly(tag string) bool {
+	if tag == "" {
+		return false
+	}
+	parts := strings.Split(tag, ",")
+	for _, part := range parts {
+		if part == "ro" {
+			return true
+		}
+	}
+	return false
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime/response.go

@@ -0,0 +1,136 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package runtime
+
+import (
+	"bytes"
+	"encoding/base64"
+	"encoding/json"
+	"encoding/xml"
+	"fmt"
+	"io"
+	"net/http"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/exported"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/shared"
+)
+
+// Payload reads and returns the response body or an error.
+// On a successful read, the response body is cached.
+// Subsequent reads will access the cached value.
+func Payload(resp *http.Response) ([]byte, error) {
+	return exported.Payload(resp)
+}
+
+// HasStatusCode returns true if the Response's status code is one of the specified values.
+func HasStatusCode(resp *http.Response, statusCodes ...int) bool {
+	return exported.HasStatusCode(resp, statusCodes...)
+}
+
+// UnmarshalAsByteArray will base-64 decode the received payload and place the result into the value pointed to by v.
+func UnmarshalAsByteArray(resp *http.Response, v *[]byte, format Base64Encoding) error {
+	p, err := Payload(resp)
+	if err != nil {
+		return err
+	}
+	return DecodeByteArray(string(p), v, format)
+}
+
+// UnmarshalAsJSON calls json.Unmarshal() to unmarshal the received payload into the value pointed to by v.
+func UnmarshalAsJSON(resp *http.Response, v interface{}) error {
+	payload, err := Payload(resp)
+	if err != nil {
+		return err
+	}
+	// TODO: verify early exit is correct
+	if len(payload) == 0 {
+		return nil
+	}
+	err = removeBOM(resp)
+	if err != nil {
+		return err
+	}
+	err = json.Unmarshal(payload, v)
+	if err != nil {
+		err = fmt.Errorf("unmarshalling type %T: %s", v, err)
+	}
+	return err
+}
+
+// UnmarshalAsXML calls xml.Unmarshal() to unmarshal the received payload into the value pointed to by v.
+func UnmarshalAsXML(resp *http.Response, v interface{}) error {
+	payload, err := Payload(resp)
+	if err != nil {
+		return err
+	}
+	// TODO: verify early exit is correct
+	if len(payload) == 0 {
+		return nil
+	}
+	err = removeBOM(resp)
+	if err != nil {
+		return err
+	}
+	err = xml.Unmarshal(payload, v)
+	if err != nil {
+		err = fmt.Errorf("unmarshalling type %T: %s", v, err)
+	}
+	return err
+}
+
+// Drain reads the response body to completion then closes it.  The bytes read are discarded.
+func Drain(resp *http.Response) {
+	if resp != nil && resp.Body != nil {
+		_, _ = io.Copy(io.Discard, resp.Body)
+		resp.Body.Close()
+	}
+}
+
+// removeBOM removes any byte-order mark prefix from the payload if present.
+func removeBOM(resp *http.Response) error {
+	payload, err := Payload(resp)
+	if err != nil {
+		return err
+	}
+	// UTF8
+	trimmed := bytes.TrimPrefix(payload, []byte("\xef\xbb\xbf"))
+	if len(trimmed) < len(payload) {
+		resp.Body.(shared.BytesSetter).Set(trimmed)
+	}
+	return nil
+}
+
+// DecodeByteArray will base-64 decode the provided string into v.
+func DecodeByteArray(s string, v *[]byte, format Base64Encoding) error {
+	if len(s) == 0 {
+		return nil
+	}
+	payload := string(s)
+	if payload[0] == '"' {
+		// remove surrounding quotes
+		payload = payload[1 : len(payload)-1]
+	}
+	switch format {
+	case Base64StdFormat:
+		decoded, err := base64.StdEncoding.DecodeString(payload)
+		if err == nil {
+			*v = decoded
+			return nil
+		}
+		return err
+	case Base64URLFormat:
+		// use raw encoding as URL format should not contain any '=' characters
+		decoded, err := base64.RawURLEncoding.DecodeString(payload)
+		if err == nil {
+			*v = decoded
+			return nil
+		}
+		return err
+	default:
+		return fmt.Errorf("unrecognized byte array format: %d", format)
+	}
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime/transport_default_http_client.go

@@ -0,0 +1,37 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package runtime
+
+import (
+	"crypto/tls"
+	"net"
+	"net/http"
+	"time"
+)
+
+var defaultHTTPClient *http.Client
+
+func init() {
+	defaultTransport := &http.Transport{
+		Proxy: http.ProxyFromEnvironment,
+		DialContext: (&net.Dialer{
+			Timeout:   30 * time.Second,
+			KeepAlive: 30 * time.Second,
+		}).DialContext,
+		ForceAttemptHTTP2:     true,
+		MaxIdleConns:          100,
+		IdleConnTimeout:       90 * time.Second,
+		TLSHandshakeTimeout:   10 * time.Second,
+		ExpectContinueTimeout: 1 * time.Second,
+		TLSClientConfig: &tls.Config{
+			MinVersion: tls.VersionTLS12,
+		},
+	}
+	defaultHTTPClient = &http.Client{
+		Transport: defaultTransport,
+	}
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/streaming/doc.go

@@ -0,0 +1,9 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright 2017 Microsoft Corporation. All rights reserved.
+// Use of this source code is governed by an MIT
+// license that can be found in the LICENSE file.
+
+// Package streaming contains helpers for streaming IO operations and progress reporting.
+package streaming

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/streaming/progress.go

@@ -0,0 +1,72 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package streaming
+
+import (
+	"io"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/internal/exported"
+)
+
+type progress struct {
+	rc     io.ReadCloser
+	rsc    io.ReadSeekCloser
+	pr     func(bytesTransferred int64)
+	offset int64
+}
+
+// NopCloser returns a ReadSeekCloser with a no-op close method wrapping the provided io.ReadSeeker.
+func NopCloser(rs io.ReadSeeker) io.ReadSeekCloser {
+	return exported.NopCloser(rs)
+}
+
+// NewRequestProgress adds progress reporting to an HTTP request's body stream.
+func NewRequestProgress(body io.ReadSeekCloser, pr func(bytesTransferred int64)) io.ReadSeekCloser {
+	return &progress{
+		rc:     body,
+		rsc:    body,
+		pr:     pr,
+		offset: 0,
+	}
+}
+
+// NewResponseProgress adds progress reporting to an HTTP response's body stream.
+func NewResponseProgress(body io.ReadCloser, pr func(bytesTransferred int64)) io.ReadCloser {
+	return &progress{
+		rc:     body,
+		rsc:    nil,
+		pr:     pr,
+		offset: 0,
+	}
+}
+
+// Read reads a block of data from an inner stream and reports progress
+func (p *progress) Read(b []byte) (n int, err error) {
+	n, err = p.rc.Read(b)
+	if err != nil && err != io.EOF {
+		return
+	}
+	p.offset += int64(n)
+	// Invokes the user's callback method to report progress
+	p.pr(p.offset)
+	return
+}
+
+// Seek only expects a zero or from beginning.
+func (p *progress) Seek(offset int64, whence int) (int64, error) {
+	// This should only ever be called with offset = 0 and whence = io.SeekStart
+	n, err := p.rsc.Seek(offset, whence)
+	if err == nil {
+		p.offset = int64(n)
+	}
+	return n, err
+}
+
+// requestBodyProgress supports Close but the underlying stream may not; if it does, Close will close it.
+func (p *progress) Close() error {
+	return p.rc.Close()
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/to/doc.go

@@ -0,0 +1,9 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright 2017 Microsoft Corporation. All rights reserved.
+// Use of this source code is governed by an MIT
+// license that can be found in the LICENSE file.
+
+// Package to contains various type-conversion helper functions.
+package to

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/to/to.go

@@ -0,0 +1,21 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package to
+
+// Ptr returns a pointer to the provided value.
+func Ptr[T any](v T) *T {
+	return &v
+}
+
+// SliceOfPtrs returns a slice of *T from the specified values.
+func SliceOfPtrs[T any](vv ...T) []*T {
+	slc := make([]*T, len(vv))
+	for i := range vv {
+		slc[i] = Ptr(vv[i])
+	}
+	return slc
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/tracing/constants.go

@@ -0,0 +1,41 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package tracing
+
+// SpanKind represents the role of a Span inside a Trace. Often, this defines how a Span will be processed and visualized by various backends.
+type SpanKind int
+
+const (
+	// SpanKindInternal indicates the span represents an internal operation within an application.
+	SpanKindInternal SpanKind = 1
+
+	// SpanKindServer indicates the span covers server-side handling of a request.
+	SpanKindServer SpanKind = 2
+
+	// SpanKindClient indicates the span describes a request to a remote service.
+	SpanKindClient SpanKind = 3
+
+	// SpanKindProducer indicates the span was created by a messaging producer.
+	SpanKindProducer SpanKind = 4
+
+	// SpanKindConsumer indicates the span was created by a messaging consumer.
+	SpanKindConsumer SpanKind = 5
+)
+
+// SpanStatus represents the status of a span.
+type SpanStatus int
+
+const (
+	// SpanStatusUnset is the default status code.
+	SpanStatusUnset SpanStatus = 0
+
+	// SpanStatusError indicates the operation contains an error.
+	SpanStatusError SpanStatus = 1
+
+	// SpanStatusOK indicates the operation completed successfully.
+	SpanStatusOK SpanStatus = 2
+)

vendor/github.com/Azure/azure-sdk-for-go/sdk/azcore/tracing/tracing.go

@@ -0,0 +1,168 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+// Package tracing contains the definitions needed to support distributed tracing.
+package tracing
+
+import (
+	"context"
+)
+
+// ProviderOptions contains the optional values when creating a Provider.
+type ProviderOptions struct {
+	// for future expansion
+}
+
+// NewProvider creates a new Provider with the specified values.
+//   - newTracerFn is the underlying implementation for creating Tracer instances
+//   - options contains optional values; pass nil to accept the default value
+func NewProvider(newTracerFn func(name, version string) Tracer, options *ProviderOptions) Provider {
+	return Provider{
+		newTracerFn: newTracerFn,
+	}
+}
+
+// Provider is the factory that creates Tracer instances.
+// It defaults to a no-op provider.
+type Provider struct {
+	newTracerFn func(name, version string) Tracer
+}
+
+// NewTracer creates a new Tracer for the specified name and version.
+//   - name - the name of the tracer object, typically the fully qualified name of the service client
+//   - version - the version of the module in which the service client resides
+func (p Provider) NewTracer(name, version string) (tracer Tracer) {
+	if p.newTracerFn != nil {
+		tracer = p.newTracerFn(name, version)
+	}
+	return
+}
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+// TracerOptions contains the optional values when creating a Tracer.
+type TracerOptions struct {
+	// for future expansion
+}
+
+// NewTracer creates a Tracer with the specified values.
+//   - newSpanFn is the underlying implementation for creating Span instances
+//   - options contains optional values; pass nil to accept the default value
+func NewTracer(newSpanFn func(ctx context.Context, spanName string, options *SpanOptions) (context.Context, Span), options *TracerOptions) Tracer {
+	return Tracer{
+		newSpanFn: newSpanFn,
+	}
+}
+
+// Tracer is the factory that creates Span instances.
+type Tracer struct {
+	newSpanFn func(ctx context.Context, spanName string, options *SpanOptions) (context.Context, Span)
+}
+
+// Start creates a new span and a context.Context that contains it.
+//   - ctx is the parent context for this span. If it contains a Span, the newly created span will be a child of that span, else it will be a root span
+//   - spanName identifies the span within a trace, it's typically the fully qualified API name
+//   - options contains optional values for the span, pass nil to accept any defaults
+func (t Tracer) Start(ctx context.Context, spanName string, options *SpanOptions) (context.Context, Span) {
+	if t.newSpanFn != nil {
+		return t.newSpanFn(ctx, spanName, options)
+	}
+	return ctx, Span{}
+}
+
+// SpanOptions contains optional settings for creating a span.
+type SpanOptions struct {
+	// Kind indicates the kind of Span.
+	Kind SpanKind
+
+	// Attributes contains key-value pairs of attributes for the span.
+	Attributes []Attribute
+}
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+// SpanImpl abstracts the underlying implementation for Span,
+// allowing it to work with various tracing implementations.
+// Any zero-values will have their default, no-op behavior.
+type SpanImpl struct {
+	// End contains the implementation for the Span.End method.
+	End func()
+
+	// SetAttributes contains the implementation for the Span.SetAttributes method.
+	SetAttributes func(...Attribute)
+
+	// AddEvent contains the implementation for the Span.AddEvent method.
+	AddEvent func(string, ...Attribute)
+
+	// AddError contains the implementation for the Span.AddError method.
+	AddError func(err error)
+
+	// SetStatus contains the implementation for the Span.SetStatus method.
+	SetStatus func(SpanStatus, string)
+}
+
+// NewSpan creates a Span with the specified implementation.
+func NewSpan(impl SpanImpl) Span {
+	return Span{
+		impl: impl,
+	}
+}
+
+// Span is a single unit of a trace.  A trace can contain multiple spans.
+// A zero-value Span provides a no-op implementation.
+type Span struct {
+	impl SpanImpl
+}
+
+// End terminates the span and MUST be called before the span leaves scope.
+// Any further updates to the span will be ignored after End is called.
+func (s Span) End() {
+	if s.impl.End != nil {
+		s.impl.End()
+	}
+}
+
+// SetAttributes sets the specified attributes on the Span.
+// Any existing attributes with the same keys will have their values overwritten.
+func (s Span) SetAttributes(attrs ...Attribute) {
+	if s.impl.SetAttributes != nil {
+		s.impl.SetAttributes(attrs...)
+	}
+}
+
+// AddEvent adds a named event with an optional set of attributes to the span.
+func (s Span) AddEvent(name string, attrs ...Attribute) {
+	if s.impl.AddEvent != nil {
+		s.impl.AddEvent(name, attrs...)
+	}
+}
+
+// AddError adds the specified error event to the span.
+func (s Span) AddError(err error) {
+	if s.impl.AddError != nil {
+		s.impl.AddError(err)
+	}
+}
+
+// SetStatus sets the status on the span along with a description.
+func (s Span) SetStatus(code SpanStatus, desc string) {
+	if s.impl.SetStatus != nil {
+		s.impl.SetStatus(code, desc)
+	}
+}
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+// Attribute is a key-value pair.
+type Attribute struct {
+	// Key is the name of the attribute.
+	Key string
+
+	// Value is the attribute's value.
+	// Types that are natively supported include int64, float64, int, bool, string.
+	// Any other type will be formatted per rules of fmt.Sprintf("%v").
+	Value any
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azidentity/CHANGELOG.md

@@ -0,0 +1,355 @@
+# Release History
+
+## 1.2.1 (2023-01-26)
+
+### Other Changes
+* Upgrade MSAL to v0.8.1
+
+## 1.3.0-beta.2 (2023-01-10)
+
+### Features Added
+* Added `OnBehalfOfCredential` to support the on-behalf-of flow
+  ([#16642](https://github.com/Azure/azure-sdk-for-go/issues/16642))
+
+### Bugs Fixed
+* `AzureCLICredential` reports token expiration in local time (should be UTC)
+
+### Other Changes
+* `AzureCLICredential` imposes its default timeout only when the `Context`
+  passed to `GetToken()` has no deadline
+* Added `NewCredentialUnavailableError()`. This function constructs an error indicating
+  a credential can't authenticate and an encompassing `ChainedTokenCredential` should
+  try its next credential, if any.
+
+## 1.3.0-beta.1 (2022-12-13)
+
+### Features Added
+* `WorkloadIdentityCredential` and `DefaultAzureCredential` support
+  Workload Identity Federation on Kubernetes. `DefaultAzureCredential`
+  support requires environment variable configuration as set by the
+  Workload Identity webhook.
+  ([#15615](https://github.com/Azure/azure-sdk-for-go/issues/15615))
+
+## 1.2.0 (2022-11-08)
+
+### Other Changes
+* This version includes all fixes and features from 1.2.0-beta.*
+
+## 1.2.0-beta.3 (2022-10-11)
+
+### Features Added
+* `ManagedIdentityCredential` caches tokens in memory
+
+### Bugs Fixed
+* `ClientCertificateCredential` sends only the leaf cert for SNI authentication
+
+## 1.2.0-beta.2 (2022-08-10)
+
+### Features Added
+* Added `ClientAssertionCredential` to enable applications to authenticate
+  with custom client assertions
+
+### Other Changes
+* Updated AuthenticationFailedError with links to TROUBLESHOOTING.md for relevant errors
+* Upgraded `microsoft-authentication-library-for-go` requirement to v0.6.0
+
+## 1.2.0-beta.1 (2022-06-07)
+
+### Features Added
+* `EnvironmentCredential` reads certificate passwords from `AZURE_CLIENT_CERTIFICATE_PASSWORD`
+  ([#17099](https://github.com/Azure/azure-sdk-for-go/pull/17099))
+
+## 1.1.0 (2022-06-07)
+
+### Features Added
+* `ClientCertificateCredential` and `ClientSecretCredential` support ESTS-R. First-party
+  applications can set environment variable `AZURE_REGIONAL_AUTHORITY_NAME` with a
+  region name.
+  ([#15605](https://github.com/Azure/azure-sdk-for-go/issues/15605))
+
+## 1.0.1 (2022-06-07)
+
+### Other Changes
+* Upgrade `microsoft-authentication-library-for-go` requirement to v0.5.1
+  ([#18176](https://github.com/Azure/azure-sdk-for-go/issues/18176))
+
+## 1.0.0 (2022-05-12)
+
+### Features Added
+* `DefaultAzureCredential` reads environment variable `AZURE_CLIENT_ID` for the
+  client ID of a user-assigned managed identity
+  ([#17293](https://github.com/Azure/azure-sdk-for-go/pull/17293))
+
+### Breaking Changes
+* Removed `AuthorizationCodeCredential`. Use `InteractiveBrowserCredential` instead
+  to authenticate a user with the authorization code flow.
+* Instances of `AuthenticationFailedError` are now returned by pointer.
+* `GetToken()` returns `azcore.AccessToken` by value
+
+### Bugs Fixed
+* `AzureCLICredential` panics after receiving an unexpected error type
+  ([#17490](https://github.com/Azure/azure-sdk-for-go/issues/17490))
+
+### Other Changes
+* `GetToken()` returns an error when the caller specifies no scope
+* Updated to the latest versions of `golang.org/x/crypto`, `azcore` and `internal`
+
+## 0.14.0 (2022-04-05)
+
+### Breaking Changes
+* This module now requires Go 1.18
+* Removed `AuthorityHost`. Credentials are now configured for sovereign or private
+  clouds with the API in `azcore/cloud`, for example:
+  ```go
+  // before
+  opts := azidentity.ClientSecretCredentialOptions{AuthorityHost: azidentity.AzureGovernment}
+  cred, err := azidentity.NewClientSecretCredential(tenantID, clientID, secret, &opts)
+
+  // after
+  import "github.com/Azure/azure-sdk-for-go/sdk/azcore/cloud"
+
+  opts := azidentity.ClientSecretCredentialOptions{}
+  opts.Cloud = cloud.AzureGovernment
+  cred, err := azidentity.NewClientSecretCredential(tenantID, clientID, secret, &opts)
+  ```
+
+## 0.13.2 (2022-03-08)
+
+### Bugs Fixed
+* Prevented a data race in `DefaultAzureCredential` and `ChainedTokenCredential`
+  ([#17144](https://github.com/Azure/azure-sdk-for-go/issues/17144))
+
+### Other Changes
+* Upgraded App Service managed identity version from 2017-09-01 to 2019-08-01
+  ([#17086](https://github.com/Azure/azure-sdk-for-go/pull/17086))
+
+## 0.13.1 (2022-02-08)
+
+### Features Added
+* `EnvironmentCredential` supports certificate SNI authentication when
+  `AZURE_CLIENT_SEND_CERTIFICATE_CHAIN` is "true".
+  ([#16851](https://github.com/Azure/azure-sdk-for-go/pull/16851))
+
+### Bugs Fixed
+* `ManagedIdentityCredential.GetToken()` now returns an error when configured for
+   a user assigned identity in Azure Cloud Shell (which doesn't support such identities)
+   ([#16946](https://github.com/Azure/azure-sdk-for-go/pull/16946))
+
+### Other Changes
+* `NewDefaultAzureCredential()` logs non-fatal errors. These errors are also included in the
+  error returned by `DefaultAzureCredential.GetToken()` when it's unable to acquire a token
+  from any source. ([#15923](https://github.com/Azure/azure-sdk-for-go/issues/15923))
+
+## 0.13.0 (2022-01-11)
+
+### Breaking Changes
+* Replaced `AuthenticationFailedError.RawResponse()` with a field having the same name
+* Unexported `CredentialUnavailableError`
+* Instances of `ChainedTokenCredential` will now skip looping through the list of source credentials and re-use the first successful credential on subsequent calls to `GetToken`.
+  * If `ChainedTokenCredentialOptions.RetrySources` is true, `ChainedTokenCredential` will continue to try all of the originally provided credentials each time the `GetToken` method is called.
+  * `ChainedTokenCredential.successfulCredential` will contain a reference to the last successful credential.
+  * `DefaultAzureCredenial` will also re-use the first successful credential on subsequent calls to `GetToken`.
+  * `DefaultAzureCredential.chain.successfulCredential` will also contain a reference to the last successful credential.
+
+### Other Changes
+* `ManagedIdentityCredential` no longer probes IMDS before requesting a token
+  from it. Also, an error response from IMDS no longer disables a credential
+  instance. Following an error, a credential instance will continue to send
+  requests to IMDS as necessary.
+* Adopted MSAL for user and service principal authentication
+* Updated `azcore` requirement to 0.21.0
+
+## 0.12.0 (2021-11-02)
+### Breaking Changes
+* Raised minimum go version to 1.16
+* Removed `NewAuthenticationPolicy()` from credentials. Clients should instead use azcore's
+ `runtime.NewBearerTokenPolicy()` to construct a bearer token authorization policy.
+* The `AuthorityHost` field in credential options structs is now a custom type,
+  `AuthorityHost`, with underlying type `string`
+* `NewChainedTokenCredential` has a new signature to accommodate a placeholder
+  options struct:
+  ```go
+  // before
+  cred, err := NewChainedTokenCredential(credA, credB)
+
+  // after
+  cred, err := NewChainedTokenCredential([]azcore.TokenCredential{credA, credB}, nil)
+  ```
+* Removed `ExcludeAzureCLICredential`, `ExcludeEnvironmentCredential`, and `ExcludeMSICredential`
+  from `DefaultAzureCredentialOptions`
+* `NewClientCertificateCredential` requires a `[]*x509.Certificate` and `crypto.PrivateKey` instead of
+  a path to a certificate file. Added `ParseCertificates` to simplify getting these in common cases:
+  ```go
+  // before
+  cred, err := NewClientCertificateCredential("tenant", "client-id", "/cert.pem", nil)
+
+  // after
+  certData, err := os.ReadFile("/cert.pem")
+  certs, key, err := ParseCertificates(certData, password)
+  cred, err := NewClientCertificateCredential(tenantID, clientID, certs, key, nil)
+  ```
+* Removed `InteractiveBrowserCredentialOptions.ClientSecret` and `.Port`
+* Removed `AADAuthenticationFailedError`
+* Removed `id` parameter of `NewManagedIdentityCredential()`. User assigned identities are now
+  specified by `ManagedIdentityCredentialOptions.ID`:
+  ```go
+  // before
+  cred, err := NewManagedIdentityCredential("client-id", nil)
+  // or, for a resource ID
+  opts := &ManagedIdentityCredentialOptions{ID: ResourceID}
+  cred, err := NewManagedIdentityCredential("/subscriptions/...", opts)
+
+  // after
+  clientID := ClientID("7cf7db0d-...")
+  opts := &ManagedIdentityCredentialOptions{ID: clientID}
+  // or, for a resource ID
+  resID: ResourceID("/subscriptions/...")
+  opts := &ManagedIdentityCredentialOptions{ID: resID}
+  cred, err := NewManagedIdentityCredential(opts)
+  ```
+* `DeviceCodeCredentialOptions.UserPrompt` has a new type: `func(context.Context, DeviceCodeMessage) error`
+* Credential options structs now embed `azcore.ClientOptions`. In addition to changing literal initialization
+  syntax, this change renames `HTTPClient` fields to `Transport`.
+* Renamed `LogCredential` to `EventCredential`
+* `AzureCLICredential` no longer reads the environment variable `AZURE_CLI_PATH`
+* `NewManagedIdentityCredential` no longer reads environment variables `AZURE_CLIENT_ID` and
+  `AZURE_RESOURCE_ID`. Use `ManagedIdentityCredentialOptions.ID` instead.
+* Unexported `AuthenticationFailedError` and `CredentialUnavailableError` structs. In their place are two
+  interfaces having the same names.
+
+### Bugs Fixed
+* `AzureCLICredential.GetToken` no longer mutates its `opts.Scopes`
+
+### Features Added
+* Added connection configuration options to `DefaultAzureCredentialOptions`
+* `AuthenticationFailedError.RawResponse()` returns the HTTP response motivating the error,
+  if available
+
+### Other Changes
+* `NewDefaultAzureCredential()` returns `*DefaultAzureCredential` instead of `*ChainedTokenCredential`
+* Added `TenantID` field to `DefaultAzureCredentialOptions` and `AzureCLICredentialOptions`
+
+## 0.11.0 (2021-09-08)
+### Breaking Changes
+* Unexported `AzureCLICredentialOptions.TokenProvider` and its type,
+  `AzureCLITokenProvider`
+
+### Bug Fixes
+* `ManagedIdentityCredential.GetToken` returns `CredentialUnavailableError`
+  when IMDS has no assigned identity, signaling `DefaultAzureCredential` to
+  try other credentials
+
+
+## 0.10.0 (2021-08-30)
+### Breaking Changes
+* Update based on `azcore` refactor [#15383](https://github.com/Azure/azure-sdk-for-go/pull/15383)
+
+## 0.9.3 (2021-08-20)
+
+### Bugs Fixed
+* `ManagedIdentityCredential.GetToken` no longer mutates its `opts.Scopes`
+
+### Other Changes
+* Bumps version of `azcore` to `v0.18.1`
+
+
+## 0.9.2 (2021-07-23)
+### Features Added
+* Adding support for Service Fabric environment in `ManagedIdentityCredential`
+* Adding an option for using a resource ID instead of client ID in `ManagedIdentityCredential`
+
+
+## 0.9.1 (2021-05-24)
+### Features Added
+* Add LICENSE.txt and bump version information
+
+
+## 0.9.0 (2021-05-21)
+### Features Added
+* Add support for authenticating in Azure Stack environments
+* Enable user assigned identities for the IMDS scenario in `ManagedIdentityCredential`
+* Add scope to resource conversion in `GetToken()` on `ManagedIdentityCredential`
+
+
+## 0.8.0 (2021-01-20)
+### Features Added
+* Updating documentation
+
+
+## 0.7.1 (2021-01-04)
+### Features Added
+* Adding port option to `InteractiveBrowserCredential`
+
+
+## 0.7.0 (2020-12-11)
+### Features Added
+* Add `redirectURI` parameter back to authentication code flow
+
+
+## 0.6.1 (2020-12-09)
+### Features Added
+* Updating query parameter in `ManagedIdentityCredential` and updating datetime string for parsing managed identity access tokens.
+
+
+## 0.6.0 (2020-11-16)
+### Features Added
+* Remove `RedirectURL` parameter from auth code flow to align with the MSAL implementation which relies on the native client redirect URL.
+
+
+## 0.5.0 (2020-10-30)
+### Features Added
+* Flattening credential options
+
+
+## 0.4.3 (2020-10-21)
+### Features Added
+* Adding Azure Arc support in `ManagedIdentityCredential`
+
+
+## 0.4.2 (2020-10-16)
+### Features Added
+* Typo fixes
+
+
+## 0.4.1 (2020-10-16)
+### Features Added
+* Ensure authority hosts are only HTTPs
+
+
+## 0.4.0 (2020-10-16)
+### Features Added
+* Adding options structs for credentials
+
+
+## 0.3.0 (2020-10-09)
+### Features Added
+* Update `DeviceCodeCredential` callback
+
+
+## 0.2.2 (2020-10-09)
+### Features Added
+* Add `AuthorizationCodeCredential`
+
+
+## 0.2.1 (2020-10-06)
+### Features Added
+* Add `InteractiveBrowserCredential`
+
+
+## 0.2.0 (2020-09-11)
+### Features Added
+* Refactor `azidentity` on top of `azcore` refactor
+* Updated policies to conform to `policy.Policy` interface changes.
+* Updated non-retriable errors to conform to `azcore.NonRetriableError`.
+* Fixed calls to `Request.SetBody()` to include content type.
+* Switched endpoints to string types and removed extra parsing code.
+
+
+## 0.1.1 (2020-09-02)
+### Features Added
+* Add `AzureCLICredential` to `DefaultAzureCredential` chain
+
+
+## 0.1.0 (2020-07-23)
+### Features Added
+* Initial Release. Azure Identity library that provides Azure Active Directory token authentication support for the SDK.

vendor/github.com/Azure/azure-sdk-for-go/sdk/azidentity/LICENSE.txt

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) Microsoft Corporation.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE

vendor/github.com/Azure/azure-sdk-for-go/sdk/azidentity/MIGRATION.md

@@ -0,0 +1,307 @@
+# Migrating from autorest/adal to azidentity
+
+`azidentity` provides Azure Active Directory (Azure AD) authentication for the newest Azure SDK modules (`github.com/azure-sdk-for-go/sdk/...`). Older Azure SDK packages (`github.com/azure-sdk-for-go/services/...`) use types from `github.com/go-autorest/autorest/adal` instead.
+
+This guide shows common authentication code using `autorest/adal` and its equivalent using `azidentity`.
+
+## Table of contents
+
+- [Acquire a token](#acquire-a-token)
+- [Client certificate authentication](#client-certificate-authentication)
+- [Client secret authentication](#client-secret-authentication)
+- [Configuration](#configuration)
+- [Device code authentication](#device-code-authentication)
+- [Managed identity](#managed-identity)
+- [Use azidentity credentials with older packages](#use-azidentity-credentials-with-older-packages)
+
+## Configuration
+
+### `autorest/adal`
+
+Token providers require a token audience (resource identifier) and an instance of `adal.OAuthConfig`, which requires an Azure AD endpoint and tenant:
+
+```go
+import "github.com/Azure/go-autorest/autorest/adal"
+
+oauthCfg, err := adal.NewOAuthConfig("https://login.chinacloudapi.cn", tenantID)
+handle(err)
+
+spt, err := adal.NewServicePrincipalTokenWithSecret(
+    *oauthCfg, clientID, "https://management.chinacloudapi.cn/", &adal.ServicePrincipalTokenSecret{ClientSecret: secret},
+)
+```
+
+### `azidentity`
+
+A credential instance can acquire tokens for any audience. The audience for each token is determined by the client requesting it. Credentials require endpoint configuration only for sovereign or private clouds. The `azcore/cloud` package has predefined configuration for sovereign clouds such as Azure China:
+
+```go
+import (
+    "github.com/Azure/azure-sdk-for-go/sdk/azcore/cloud"
+    "github.com/Azure/azure-sdk-for-go/sdk/azidentity"
+)
+
+clientOpts := azcore.ClientOptions{Cloud: cloud.AzureChina}
+
+cred, err := azidentity.NewClientSecretCredential(
+    tenantID, clientID, secret, &azidentity.ClientSecretCredentialOptions{ClientOptions: clientOpts},
+)
+handle(err)
+```
+
+## Client secret authentication
+
+### `autorest/adal`
+
+```go
+import (
+    "github.com/Azure/azure-sdk-for-go/services/resources/mgmt/2018-06-01/subscriptions"
+    "github.com/Azure/go-autorest/autorest"
+    "github.com/Azure/go-autorest/autorest/adal"
+)
+
+oauthCfg, err := adal.NewOAuthConfig("https://login.microsoftonline.com", tenantID)
+handle(err)
+spt, err := adal.NewServicePrincipalTokenWithSecret(
+    *oauthCfg, clientID, "https://management.azure.com/", &adal.ServicePrincipalTokenSecret{ClientSecret: secret},
+)
+handle(err)
+
+client := subscriptions.NewClient()
+client.Authorizer = autorest.NewBearerAuthorizer(spt)
+```
+
+### `azidentity`
+
+```go
+import (
+    "github.com/Azure/azure-sdk-for-go/sdk/azidentity"
+    "github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/resources/armsubscriptions"
+)
+
+cred, err := azidentity.NewClientSecretCredential(tenantID, clientID, secret, nil)
+handle(err)
+
+client, err := armsubscriptions.NewClient(cred, nil)
+handle(err)
+```
+
+## Client certificate authentication
+
+### `autorest/adal`
+
+```go
+import (
+    "os"
+
+    "github.com/Azure/azure-sdk-for-go/services/resources/mgmt/2018-06-01/subscriptions"
+    "github.com/Azure/go-autorest/autorest"
+    "github.com/Azure/go-autorest/autorest/adal"
+)
+certData, err := os.ReadFile("./example.pfx")
+handle(err)
+
+certificate, rsaPrivateKey, err := decodePkcs12(certData, "")
+handle(err)
+
+oauthCfg, err := adal.NewOAuthConfig("https://login.microsoftonline.com", tenantID)
+handle(err)
+
+spt, err := adal.NewServicePrincipalTokenFromCertificate(
+    *oauthConfig, clientID, certificate, rsaPrivateKey, "https://management.azure.com/",
+)
+
+client := subscriptions.NewClient()
+client.Authorizer = autorest.NewBearerAuthorizer(spt)
+```
+
+### `azidentity`
+
+```go
+import (
+    "os"
+
+    "github.com/Azure/azure-sdk-for-go/sdk/azidentity"
+    "github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/resources/armsubscriptions"
+)
+
+certData, err := os.ReadFile("./example.pfx")
+handle(err)
+
+certs, key, err := azidentity.ParseCertificates(certData, nil)
+handle(err)
+
+cred, err = azidentity.NewClientCertificateCredential(tenantID, clientID, certs, key, nil)
+handle(err)
+
+client, err := armsubscriptions.NewClient(cred, nil)
+handle(err)
+```
+
+## Managed identity
+
+### `autorest/adal`
+
+```go
+import (
+    "github.com/Azure/azure-sdk-for-go/services/resources/mgmt/2018-06-01/subscriptions"
+    "github.com/Azure/go-autorest/autorest"
+    "github.com/Azure/go-autorest/autorest/adal"
+)
+
+spt, err := adal.NewServicePrincipalTokenFromManagedIdentity("https://management.azure.com/", nil)
+handle(err)
+
+client := subscriptions.NewClient()
+client.Authorizer = autorest.NewBearerAuthorizer(spt)
+```
+
+### `azidentity`
+
+```go
+import (
+    "github.com/Azure/azure-sdk-for-go/sdk/azidentity"
+    "github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/resources/armsubscriptions"
+)
+
+cred, err := azidentity.NewManagedIdentityCredential(nil)
+handle(err)
+
+client, err := armsubscriptions.NewClient(cred, nil)
+handle(err)
+```
+
+### User-assigned identities
+
+`autorest/adal`:
+
+```go
+import "github.com/Azure/go-autorest/autorest/adal"
+
+opts := &adal.ManagedIdentityOptions{ClientID: "..."}
+spt, err := adal.NewServicePrincipalTokenFromManagedIdentity("https://management.azure.com/")
+handle(err)
+```
+
+`azidentity`:
+
+```go
+import "github.com/Azure/azure-sdk-for-go/sdk/azidentity"
+
+opts := azidentity.ManagedIdentityCredentialOptions{ID: azidentity.ClientID("...")}
+cred, err := azidentity.NewManagedIdentityCredential(&opts)
+handle(err)
+```
+
+## Device code authentication
+
+### `autorest/adal`
+
+```go
+import (
+    "fmt"
+    "net/http"
+
+    "github.com/Azure/azure-sdk-for-go/services/resources/mgmt/2018-06-01/subscriptions"
+    "github.com/Azure/go-autorest/autorest"
+    "github.com/Azure/go-autorest/autorest/adal"
+)
+
+oauthClient := &http.Client{}
+oauthCfg, err := adal.NewOAuthConfig("https://login.microsoftonline.com", tenantID)
+handle(err)
+resource := "https://management.azure.com/"
+deviceCode, err := adal.InitiateDeviceAuth(oauthClient, *oauthCfg, clientID, resource)
+handle(err)
+
+// display instructions, wait for the user to authenticate
+fmt.Println(*deviceCode.Message)
+token, err := adal.WaitForUserCompletion(oauthClient, deviceCode)
+handle(err)
+
+spt, err := adal.NewServicePrincipalTokenFromManualToken(*oauthCfg, clientID, resource, *token)
+handle(err)
+
+client := subscriptions.NewClient()
+client.Authorizer = autorest.NewBearerAuthorizer(spt)
+```
+
+### `azidentity`
+
+```go
+import (
+    "github.com/Azure/azure-sdk-for-go/sdk/azidentity"
+    "github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/resources/armsubscriptions"
+)
+
+cred, err := azidentity.NewDeviceCodeCredential(nil)
+handle(err)
+
+client, err := armsubscriptions.NewSubscriptionsClient(cred, nil)
+handle(err)
+```
+
+`azidentity.DeviceCodeCredential` will guide a user through authentication, printing instructions to the console by default. The user prompt is customizable. For more information, see the [package documentation](https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/azidentity#DeviceCodeCredential).
+
+## Acquire a token
+
+### `autorest/adal`
+
+```go
+import "github.com/Azure/go-autorest/autorest/adal"
+
+oauthCfg, err := adal.NewOAuthConfig("https://login.microsoftonline.com", tenantID)
+handle(err)
+
+spt, err := adal.NewServicePrincipalTokenWithSecret(
+    *oauthCfg, clientID, "https://vault.azure.net", &adal.ServicePrincipalTokenSecret{ClientSecret: secret},
+)
+
+err = spt.Refresh()
+if err == nil {
+    token := spt.Token
+}
+```
+
+### `azidentity`
+
+In ordinary usage, application code doesn't need to request tokens from credentials directly. Azure SDK clients handle token acquisition and refreshing internally. However, applications may call `GetToken()` to do so. All credential types have this method.
+
+```go
+import (
+    "github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+    "github.com/Azure/azure-sdk-for-go/sdk/azidentity"
+)
+
+cred, err := azidentity.NewClientSecretCredential(tenantID, clientID, secret, nil)
+handle(err)
+
+tk, err := cred.GetToken(
+    context.TODO(), policy.TokenRequestOptions{Scopes: []string{"https://vault.azure.net/.default"}},
+)
+if err == nil {
+    token := tk.Token
+}
+```
+
+Note that `azidentity` credentials use the Azure AD v2.0 endpoint, which requires OAuth 2 scopes instead of the resource identifiers `autorest/adal` expects. For more information, see [Azure AD documentation](https://docs.microsoft.com/azure/active-directory/develop/v2-permissions-and-consent).
+
+## Use azidentity credentials with older packages
+
+The [azidext module](https://pkg.go.dev/github.com/jongio/azidext/go/azidext) provides an adapter for `azidentity` credential types. The adapter enables using the credential types with older Azure SDK clients. For example:
+
+```go
+import (
+    "github.com/Azure/azure-sdk-for-go/sdk/azidentity"
+    "github.com/Azure/azure-sdk-for-go/services/resources/mgmt/2018-06-01/subscriptions"
+    "github.com/jongio/azidext/go/azidext"
+)
+
+cred, err := azidentity.NewClientSecretCredential(tenantID, clientID, secret, nil)
+handle(err)
+
+client := subscriptions.NewClient()
+client.Authorizer = azidext.NewTokenCredentialAdapter(cred, []string{"https://management.azure.com//.default"})
+```
+
+![Impressions](https://azure-sdk-impressions.azurewebsites.net/api/impressions/azure-sdk-for-go%2Fsdk%2Fazidentity%2FMIGRATION.png)

vendor/github.com/Azure/azure-sdk-for-go/sdk/azidentity/README.md

@@ -0,0 +1,241 @@
+# Azure Identity Client Module for Go
+
+The Azure Identity module provides Azure Active Directory (Azure AD) token authentication support across the Azure SDK. It includes a set of `TokenCredential` implementations, which can be used with Azure SDK clients supporting token authentication.
+
+[![PkgGoDev](https://pkg.go.dev/badge/github.com/Azure/azure-sdk-for-go/sdk/azidentity)](https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/azidentity)
+| [Azure Active Directory documentation](https://docs.microsoft.com/azure/active-directory/)
+| [Source code](https://github.com/Azure/azure-sdk-for-go/tree/main/sdk/azidentity)
+
+# Getting started
+
+## Install the module
+
+This project uses [Go modules](https://github.com/golang/go/wiki/Modules) for versioning and dependency management.
+
+Install the Azure Identity module:
+
+```sh
+go get -u github.com/Azure/azure-sdk-for-go/sdk/azidentity
+```
+
+## Prerequisites
+
+- an [Azure subscription](https://azure.microsoft.com/free/)
+- Go 1.18
+
+### Authenticating during local development
+
+When debugging and executing code locally, developers typically use their own accounts to authenticate calls to Azure services. The `azidentity` module supports authenticating through developer tools to simplify local development.
+
+#### Authenticating via the Azure CLI
+
+`DefaultAzureCredential` and `AzureCLICredential` can authenticate as the user
+signed in to the [Azure CLI](https://docs.microsoft.com/cli/azure). To sign in to the Azure CLI, run `az login`. On a system with a default web browser, the Azure CLI will launch the browser to authenticate a user.
+
+When no default browser is available, `az login` will use the device code
+authentication flow. This can also be selected manually by running `az login --use-device-code`.
+
+## Key concepts
+
+### Credentials
+
+A credential is a type which contains or can obtain the data needed for a
+service client to authenticate requests. Service clients across the Azure SDK
+accept a credential instance when they are constructed, and use that credential
+to authenticate requests.
+
+The `azidentity` module focuses on OAuth authentication with Azure Active
+Directory (AAD). It offers a variety of credential types capable of acquiring
+an Azure AD access token. See [Credential Types](#credential-types "Credential Types") for a list of this module's credential types.
+
+### DefaultAzureCredential
+
+`DefaultAzureCredential` is appropriate for most apps that will be deployed to Azure. It combines common production credentials with development credentials. It attempts to authenticate via the following mechanisms in this order, stopping when one succeeds:
+
+![DefaultAzureCredential authentication flow](img/mermaidjs/DefaultAzureCredentialAuthFlow.svg)
+
+1. **Environment** - `DefaultAzureCredential` will read account information specified via [environment variables](#environment-variables) and use it to authenticate.
+2. **Managed Identity** - If the app is deployed to an Azure host with managed identity enabled, `DefaultAzureCredential` will authenticate with it.
+3. **Azure CLI** - If a user or service principal has authenticated via the Azure CLI `az login` command, `DefaultAzureCredential` will authenticate that identity.
+
+> Note: `DefaultAzureCredential` is intended to simplify getting started with the SDK by handling common scenarios with reasonable default behaviors. Developers who want more control or whose scenario isn't served by the default settings should use other credential types.
+
+## Managed Identity
+
+`DefaultAzureCredential` and `ManagedIdentityCredential` support
+[managed identity authentication](https://docs.microsoft.com/azure/active-directory/managed-identities-azure-resources/overview)
+in any hosting environment which supports managed identities, such as (this list is not exhaustive):
+* [Azure App Service](https://docs.microsoft.com/azure/app-service/overview-managed-identity)
+* [Azure Arc](https://docs.microsoft.com/azure/azure-arc/servers/managed-identity-authentication)
+* [Azure Cloud Shell](https://docs.microsoft.com/azure/cloud-shell/msi-authorization)
+* [Azure Kubernetes Service](https://docs.microsoft.com/azure/aks/use-managed-identity)
+* [Azure Service Fabric](https://docs.microsoft.com/azure/service-fabric/concepts-managed-identity)
+* [Azure Virtual Machines](https://docs.microsoft.com/azure/active-directory/managed-identities-azure-resources/how-to-use-vm-token)
+
+## Examples
+
+- [Authenticate with DefaultAzureCredential](#authenticate-with-defaultazurecredential "Authenticate with DefaultAzureCredential")
+- [Define a custom authentication flow with ChainedTokenCredential](#define-a-custom-authentication-flow-with-chainedtokencredential "Define a custom authentication flow with ChainedTokenCredential")
+- [Specify a user-assigned managed identity for DefaultAzureCredential](#specify-a-user-assigned-managed-identity-for-defaultazurecredential)
+
+### Authenticate with DefaultAzureCredential
+
+This example demonstrates authenticating a client from the `armresources` module with `DefaultAzureCredential`.
+
+```go
+cred, err := azidentity.NewDefaultAzureCredential(nil)
+if err != nil {
+  // handle error
+}
+
+client := armresources.NewResourceGroupsClient("subscription ID", cred, nil)
+```
+
+### Specify a user-assigned managed identity for DefaultAzureCredential
+
+To configure `DefaultAzureCredential` to authenticate a user-assigned managed identity, set the environment variable `AZURE_CLIENT_ID` to the identity's client ID.
+
+### Define a custom authentication flow with `ChainedTokenCredential`
+
+`DefaultAzureCredential` is generally the quickest way to get started developing apps for Azure. For more advanced scenarios, `ChainedTokenCredential` links multiple credential instances to be tried sequentially when authenticating. It will try each chained credential in turn until one provides a token or fails to authenticate due to an error.
+
+The following example demonstrates creating a credential, which will attempt to authenticate using managed identity. It will fall back to authenticating via the Azure CLI when a managed identity is unavailable.
+
+```go
+managed, err := azidentity.NewManagedIdentityCredential(nil)
+if err != nil {
+  // handle error
+}
+azCLI, err := azidentity.NewAzureCLICredential(nil)
+if err != nil {
+  // handle error
+}
+chain, err := azidentity.NewChainedTokenCredential([]azcore.TokenCredential{managed, azCLI}, nil)
+if err != nil {
+  // handle error
+}
+
+client := armresources.NewResourceGroupsClient("subscription ID", chain, nil)
+```
+
+## Credential Types
+
+### Authenticating Azure Hosted Applications
+
+|Credential|Usage
+|-|-
+|[DefaultAzureCredential](https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/azidentity#DefaultAzureCredential)|Simplified authentication experience for getting started developing Azure apps
+|[ChainedTokenCredential](https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/azidentity#ChainedTokenCredential)|Define custom authentication flows, composing multiple credentials
+|[EnvironmentCredential](https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/azidentity#EnvironmentCredential)|Authenticate a service principal or user configured by environment variables
+|[ManagedIdentityCredential](https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/azidentity#ManagedIdentityCredential)|Authenticate the managed identity of an Azure resource
+
+### Authenticating Service Principals
+
+|Credential|Usage
+|-|-
+|[ClientAssertionCredential](https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/azidentity@v1.2.0-beta.2#ClientAssertionCredential)|Authenticate a service principal with a signed client assertion
+|[ClientCertificateCredential](https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/azidentity#ClientCertificateCredential)|Authenticate a service principal with a certificate
+|[ClientSecretCredential](https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/azidentity#ClientSecretCredential)|Authenticate a service principal with a secret
+
+### Authenticating Users
+
+|Credential|Usage
+|-|-
+|[InteractiveBrowserCredential](https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/azidentity#InteractiveBrowserCredential)|Interactively authenticate a user with the default web browser
+|[DeviceCodeCredential](https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/azidentity#DeviceCodeCredential)|Interactively authenticate a user on a device with limited UI
+|[UsernamePasswordCredential](https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/azidentity#UsernamePasswordCredential)|Authenticate a user with a username and password
+
+### Authenticating via Development Tools
+
+|Credential|Usage
+|-|-
+|[AzureCLICredential](https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/azidentity#AzureCLICredential)|Authenticate as the user signed in to the Azure CLI
+
+## Environment Variables
+
+`DefaultAzureCredential` and `EnvironmentCredential` can be configured with environment variables. Each type of authentication requires values for specific variables:
+
+#### Service principal with secret
+
+|variable name|value
+|-|-
+|`AZURE_CLIENT_ID`|ID of an Azure Active Directory application
+|`AZURE_TENANT_ID`|ID of the application's Azure Active Directory tenant
+|`AZURE_CLIENT_SECRET`|one of the application's client secrets
+
+#### Service principal with certificate
+
+|variable name|value
+|-|-
+|`AZURE_CLIENT_ID`|ID of an Azure Active Directory application
+|`AZURE_TENANT_ID`|ID of the application's Azure Active Directory tenant
+|`AZURE_CLIENT_CERTIFICATE_PATH`|path to a certificate file including private key
+|`AZURE_CLIENT_CERTIFICATE_PASSWORD`|password of the certificate file, if any
+
+#### Username and password
+
+|variable name|value
+|-|-
+|`AZURE_CLIENT_ID`|ID of an Azure Active Directory application
+|`AZURE_USERNAME`|a username (usually an email address)
+|`AZURE_PASSWORD`|that user's password
+
+Configuration is attempted in the above order. For example, if values for a
+client secret and certificate are both present, the client secret will be used.
+
+## Troubleshooting
+
+### Error Handling
+
+Credentials return an `error` when they fail to authenticate or lack data they require to authenticate. For guidance on resolving errors from specific credential types, see the [troubleshooting guide](https://aka.ms/azsdk/go/identity/troubleshoot).
+
+For more details on handling specific Azure Active Directory errors please refer to the
+Azure Active Directory
+[error code documentation](https://docs.microsoft.com/azure/active-directory/develop/reference-aadsts-error-codes).
+
+### Logging
+
+This module uses the classification-based logging implementation in `azcore`. To enable console logging for all SDK modules, set `AZURE_SDK_GO_LOGGING` to `all`. Use the `azcore/log` package to control log event output or to enable logs for `azidentity` only. For example:
+```go
+import azlog "github.com/Azure/azure-sdk-for-go/sdk/azcore/log"
+
+// print log output to stdout
+azlog.SetListener(func(event azlog.Event, s string) {
+    fmt.Println(s)
+})
+
+// include only azidentity credential logs
+azlog.SetEvents(azidentity.EventAuthentication)
+```
+
+Credentials log basic information only, such as `GetToken` success or failure and errors. These log entries don't contain authentication secrets but may contain sensitive information.
+
+## Next steps
+
+Client and management modules listed on the [Azure SDK releases page](https://azure.github.io/azure-sdk/releases/latest/go.html) support authenticating with `azidentity` credential types. You can learn more about using these libraries in their documentation, which is linked from the release page.
+
+## Provide Feedback
+
+If you encounter bugs or have suggestions, please
+[open an issue](https://github.com/Azure/azure-sdk-for-go/issues).
+
+## Contributing
+
+This project welcomes contributions and suggestions. Most contributions require
+you to agree to a Contributor License Agreement (CLA) declaring that you have
+the right to, and actually do, grant us the rights to use your contribution.
+For details, visit [https://cla.microsoft.com](https://cla.microsoft.com).
+
+When you submit a pull request, a CLA-bot will automatically determine whether
+you need to provide a CLA and decorate the PR appropriately (e.g., label,
+comment). Simply follow the instructions provided by the bot. You will only
+need to do this once across all repos using our CLA.
+
+This project has adopted the
+[Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/).
+For more information, see the
+[Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/)
+or contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any
+additional questions or comments.
+
+![Impressions](https://azure-sdk-impressions.azurewebsites.net/api/impressions/azure-sdk-for-go%2Fsdk%2Fazidentity%2FREADME.png)

vendor/github.com/Azure/azure-sdk-for-go/sdk/azidentity/TROUBLESHOOTING.md

@@ -0,0 +1,197 @@
+# Troubleshoot Azure Identity authentication issues
+
+This troubleshooting guide covers failure investigation techniques, common errors for the credential types in the `azidentity` module, and mitigation steps to resolve these errors.
+
+## Table of contents
+
+- [Handle azidentity errors](#handle-azidentity-errors)
+  - [Permission issues](#permission-issues)
+- [Find relevant information in errors](#find-relevant-information-in-errors)
+- [Enable and configure logging](#enable-and-configure-logging)
+- [Troubleshoot DefaultAzureCredential authentication issues](#troubleshoot-defaultazurecredential-authentication-issues)
+- [Troubleshoot EnvironmentCredential authentication issues](#troubleshoot-environmentcredential-authentication-issues)
+- [Troubleshoot ClientSecretCredential authentication issues](#troubleshoot-clientsecretcredential-authentication-issues)
+- [Troubleshoot ClientCertificateCredential authentication issues](#troubleshoot-clientcertificatecredential-authentication-issues)
+- [Troubleshoot UsernamePasswordCredential authentication issues](#troubleshoot-usernamepasswordcredential-authentication-issues)
+- [Troubleshoot ManagedIdentityCredential authentication issues](#troubleshoot-managedidentitycredential-authentication-issues)
+  - [Azure Virtual Machine managed identity](#azure-virtual-machine-managed-identity)
+  - [Azure App Service and Azure Functions managed identity](#azure-app-service-and-azure-functions-managed-identity)
+  - [Azure Kubernetes Service managed identity](#azure-kubernetes-service-managed-identity)
+- [Troubleshoot AzureCliCredential authentication issues](#troubleshoot-azureclicredential-authentication-issues)
+- [Get additional help](#get-additional-help)
+
+## Handle azidentity errors
+
+Any service client method that makes a request to the service may return an error due to authentication failure. This is because the credential authenticates on the first call to the service and on any subsequent call that needs to refresh an access token. Authentication errors include a description of the failure and possibly an error message from Azure Active Directory (Azure AD). Depending on the application, these errors may or may not be recoverable.
+
+### Permission issues
+
+Service client errors with a status code of 401 or 403 often indicate that authentication succeeded but the caller doesn't have permission to access the specified API. Check the service documentation to determine which RBAC roles are needed for the request, and ensure the authenticated user or service principal has the appropriate role assignments.
+
+## Find relevant information in errors
+
+Authentication errors can include responses from Azure AD and often contain information helpful in diagnosis. Consider the following error message:
+
+```
+ClientSecretCredential authentication failed
+POST https://login.microsoftonline.com/3c631bb7-a9f7-4343-a5ba-a615913/oauth2/v2.0/token
+--------------------------------------------------------------------------------
+RESPONSE 401 Unauthorized
+--------------------------------------------------------------------------------
+{
+  "error": "invalid_client",
+  "error_description": "AADSTS7000215: Invalid client secret provided. Ensure the secret being sent in the request is the client secret value, not the client secret ID, for a secret added to app '86be4c01-505b-45e9-bfc0-9b825fd84'.\r\nTrace ID: 03da4b8e-5ffe-48ca-9754-aff4276f0100\r\nCorrelation ID: 7b12f9bb-2eef-42e3-ad75-eee69ec9088d\r\nTimestamp: 2022-03-02 18:25:26Z",
+  "error_codes": [
+    7000215
+  ],
+  "timestamp": "2022-03-02 18:25:26Z",
+  "trace_id": "03da4b8e-5ffe-48ca-9754-aff4276f0100",
+  "correlation_id": "7b12f9bb-2eef-42e3-ad75-eee69ec9088d",
+  "error_uri": "https://login.microsoftonline.com/error?code=7000215"
+}
+--------------------------------------------------------------------------------
+```
+
+This error contains several pieces of information:
+
+- __Failing Credential Type__: The type of credential that failed to authenticate. This can be helpful when diagnosing issues with chained credential types such as `DefaultAzureCredential` or `ChainedTokenCredential`.
+
+- __Azure AD Error Code and Message__: The error code and message returned by Azure AD. This can give insight into the specific reason the request failed. For instance, in this case authentication failed because the provided client secret is incorrect. [Azure AD documentation](https://docs.microsoft.com/azure/active-directory/develop/reference-aadsts-error-codes#aadsts-error-codes) has more information on AADSTS error codes.
+
+- __Correlation ID and Timestamp__: The correlation ID and timestamp identify the request in server-side logs. This information can be useful to support engineers diagnosing unexpected Azure AD failures.
+
+### Enable and configure logging
+
+`azidentity` provides the same logging capabilities as the rest of the Azure SDK. The simplest way to see the logs to help debug authentication issues is to print credential logs to the console.
+```go
+import azlog "github.com/Azure/azure-sdk-for-go/sdk/azcore/log"
+
+// print log output to stdout
+azlog.SetListener(func(event azlog.Event, s string) {
+    fmt.Println(s)
+})
+
+// include only azidentity credential logs
+azlog.SetEvents(azidentity.EventAuthentication)
+```
+
+## Troubleshoot DefaultAzureCredential authentication issues
+
+| Error |Description| Mitigation |
+|---|---|---|
+|"DefaultAzureCredential failed to acquire a token"|No credential in the `DefaultAzureCredential` chain provided a token|<ul><li>[Enable logging](#enable-and-configure-logging) to get further diagnostic information.</li><li>Consult the troubleshooting guide for underlying credential types for more information.</li><ul><li>[EnvironmentCredential](#troubleshoot-environmentcredential-authentication-issues)</li><li>[ManagedIdentityCredential](#troubleshoot-visualstudiocredential-authentication-issues)</li><li>[AzureCLICredential](#troubleshoot-azureclicredential-authentication-issues)</li></ul>|
+|Error from the client with a status code of 401 or 403|Authentication succeeded but the authorizing Azure service responded with a 401 (Unauthorized), or 403 (Forbidden) status code|<ul><li>[Enable logging](#enable-and-configure-logging) to determine which credential in the chain returned the authenticating token.</li><li>If an unexpected credential is returning a token, check application configuration such as environment variables.</li><li>Ensure the correct role is assigned to the authenticated identity. For example, a service specific role rather than the subscription Owner role.</li></ul>|
+
+## Troubleshoot EnvironmentCredential authentication issues
+
+| Error Message |Description| Mitigation |
+|---|---|---|
+|Missing or incomplete environment variable configuration|A valid combination of environment variables wasn't set|Ensure the appropriate environment variables are set for the intended authentication method as described in the [module documentation](https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/azidentity#EnvironmentCredential)|
+
+<a id="client-secret"></a>
+## Troubleshoot ClientSecretCredential authentication issues
+
+| Error Code | Issue | Mitigation |
+|---|---|---|
+|AADSTS7000215|An invalid client secret was provided.|Ensure the secret provided to the credential constructor is valid. If unsure, create a new client secret using the Azure portal. Details on creating a new client secret are in [Azure AD documentation](https://docs.microsoft.com/azure/active-directory/develop/howto-create-service-principal-portal#option-2-create-a-new-application-secret).|
+|AADSTS7000222|An expired client secret was provided.|Create a new client secret using the Azure portal. Details on creating a new client secret are in [Azure AD documentation](https://docs.microsoft.com/azure/active-directory/develop/howto-create-service-principal-portal#option-2-create-a-new-application-secret).|
+|AADSTS700016|The specified application wasn't found in the specified tenant.|Ensure the client and tenant IDs provided to the credential constructor are correct for your application registration. For multi-tenant apps, ensure the application has been added to the desired tenant by a tenant admin. To add a new application in the desired tenant, follow the [Azure AD instructions](https://docs.microsoft.com/azure/active-directory/develop/howto-create-service-principal-portal).|
+
+<a id="client-cert"></a>
+## Troubleshoot ClientCertificateCredential authentication issues
+
+| Error Code | Description | Mitigation |
+|---|---|---|
+|AADSTS700027|Client assertion contains an invalid signature.|Ensure the specified certificate has been uploaded to the application registration as described in [Azure AD documentation](https://docs.microsoft.com/azure/active-directory/develop/howto-create-service-principal-portal#option-1-upload-a-certificate).|
+|AADSTS700016|The specified application wasn't found in the specified tenant.|Ensure the client and tenant IDs provided to the credential constructor are correct for your application registration. For multi-tenant apps, ensure the application has been added to the desired tenant by a tenant admin. To add a new application in the desired tenant, follow the [Azure AD instructions](https://docs.microsoft.com/azure/active-directory/develop/howto-create-service-principal-portal).|
+
+<a id="username-password"></a>
+## Troubleshoot UsernamePasswordCredential authentication issues
+
+| Error Code | Issue | Mitigation |
+|---|---|---|
+|AADSTS50126|The provided username or password is invalid.|Ensure the username and password provided to the credential constructor are valid.|
+
+<a id="managed-id"></a>
+## Troubleshoot ManagedIdentityCredential authentication issues
+
+`ManagedIdentityCredential` is designed to work on a variety of Azure hosts support managed identity. Configuration and troubleshooting vary from host to host. The below table lists the Azure hosts that can be assigned a managed identity and are supported by `ManagedIdentityCredential`.
+
+|Host Environment| | |
+|---|---|---|
+|Azure Virtual Machines and Scale Sets|[Configuration](https://docs.microsoft.com/azure/active-directory/managed-identities-azure-resources/qs-configure-portal-windows-vm)|[Troubleshooting](#azure-virtual-machine-managed-identity)|
+|Azure App Service and Azure Functions|[Configuration](https://docs.microsoft.com/azure/app-service/overview-managed-identity)|[Troubleshooting](#azure-app-service-and-azure-functions-managed-identity)|
+|Azure Kubernetes Service|[Configuration](https://azure.github.io/aad-pod-identity/docs/)|[Troubleshooting](#azure-kubernetes-service-managed-identity)|
+|Azure Arc|[Configuration](https://docs.microsoft.com/azure/azure-arc/servers/managed-identity-authentication)||
+|Azure Service Fabric|[Configuration](https://docs.microsoft.com/azure/service-fabric/concepts-managed-identity)||
+
+### Azure Virtual Machine managed identity
+
+| Error Message |Description| Mitigation |
+|---|---|---|
+|The requested identity hasn’t been assigned to this resource.|The IMDS endpoint responded with a status code of 400, indicating the requested identity isn’t assigned to the VM.|If using a user assigned identity, ensure the specified ID is correct.<p/><p/>If using a system assigned identity, make sure it has been enabled as described in [managed identity documentation](https://docs.microsoft.com/azure/active-directory/managed-identities-azure-resources/qs-configure-portal-windows-vm#enable-system-assigned-managed-identity-on-an-existing-vm).|
+|The request failed due to a gateway error.|The request to the IMDS endpoint failed due to a gateway error, 502 or 504 status code.|IMDS doesn't support requests via proxy or gateway. Disable proxies or gateways running on the VM for requests to the IMDS endpoint `http://169.254.169.254`|
+|No response received from the managed identity endpoint.|No response was received for the request to IMDS or the request timed out.|<ul><li>Ensure the VM is configured for managed identity as described in [managed identity documentation](https://docs.microsoft.com/azure/active-directory/managed-identities-azure-resources/qs-configure-portal-windows-vm).</li><li>Verify the IMDS endpoint is reachable on the VM. See [below](#verify-imds-is-available-on-the-vm) for instructions.</li></ul>|
+|Multiple attempts failed to obtain a token from the managed identity endpoint.|The credential has exhausted its retries for a token request.|<ul><li>Refer to the error message for more details on specific failures.<li>Ensure the VM is configured for managed identity as described in [managed identity documentation](https://docs.microsoft.com/azure/active-directory/managed-identities-azure-resources/qs-configure-portal-windows-vm).</li><li>Verify the IMDS endpoint is reachable on the VM. See [below](#verify-imds-is-available-on-the-vm) for instructions.</li></ul>|
+
+#### Verify IMDS is available on the VM
+
+If you have access to the VM, you can use `curl` to verify the managed identity endpoint is available.
+
+```sh
+curl 'http://169.254.169.254/metadata/identity/oauth2/token?resource=https://management.core.windows.net&api-version=2018-02-01' -H "Metadata: true"
+```
+
+> This command's output will contain an access token and SHOULD NOT BE SHARED, to avoid compromising account security.
+
+### Azure App Service and Azure Functions managed identity
+
+| Error Message |Description| Mitigation |
+|---|---|---|
+|Get "`http://169.254.169.254/...`" i/o timeout|The App Service host hasn't set environment variables for managed identity configuration.|<ul><li>Ensure the App Service is configured for managed identity as described in [App Service documentation](https://docs.microsoft.com/azure/app-service/overview-managed-identity).</li><li>Verify the App Service environment is properly configured and the managed identity endpoint is available. See [below](#verify-the-app-service-managed-identity-endpoint-is-available) for instructions.</li></ul>|
+
+#### Verify the App Service managed identity endpoint is available
+
+If you can SSH into the App Service, you can verify managed identity is available in the environment. First ensure the environment variables `IDENTITY_ENDPOINT` and `IDENTITY_SECRET` are set. Then you can verify the managed identity endpoint is available using `curl`.
+
+```sh
+curl "$IDENTITY_ENDPOINT?resource=https://management.core.windows.net&api-version=2019-08-01" -H "X-IDENTITY-HEADER: $IDENTITY_HEADER"
+```
+
+> This command's output will contain an access token and SHOULD NOT BE SHARED, to avoid compromising account security.
+
+### Azure Kubernetes Service managed identity
+
+#### Pod Identity
+
+| Error Message |Description| Mitigation |
+|---|---|---|
+|"no azure identity found for request clientID"|The application attempted to authenticate before an identity was assigned to its pod|Verify the pod is labeled correctly. This also occurs when a correctly labeled pod authenticates before the identity is ready. To prevent initialization races, configure NMI to set the Retry-After header in its responses as described in [Pod Identity documentation](https://azure.github.io/aad-pod-identity/docs/configure/feature_flags/#set-retry-after-header-in-nmi-response).
+
+<a id="azure-cli"></a>
+## Troubleshoot AzureCliCredential authentication issues
+
+| Error Message |Description| Mitigation |
+|---|---|---|
+|Azure CLI not found on path|The Azure CLI isn’t installed or isn't on the application's path.|<ul><li>Ensure the Azure CLI is installed as described in [Azure CLI documentation](https://docs.microsoft.com/cli/azure/install-azure-cli).</li><li>Validate the installation location is in the application's `PATH` environment variable.</li></ul>|
+|Please run 'az login' to set up account|No account is currently logged into the Azure CLI, or the login has expired.|<ul><li>Run `az login` to log into the Azure CLI. More information about Azure CLI authentication is available in the [Azure CLI documentation](https://docs.microsoft.com/cli/azure/authenticate-azure-cli).</li><li>Verify that the Azure CLI can obtain tokens. See [below](#verify-the-azure-cli-can-obtain-tokens) for instructions.</li></ul>|
+
+#### Verify the Azure CLI can obtain tokens
+
+You can manually verify that the Azure CLI can authenticate and obtain tokens. First, use the `account` command to verify the logged in account.
+
+```azurecli
+az account show
+```
+
+Once you've verified the Azure CLI is using the correct account, you can validate that it's able to obtain tokens for that account.
+
+```azurecli
+az account get-access-token --output json --resource https://management.core.windows.net
+```
+
+> This command's output will contain an access token and SHOULD NOT BE SHARED, to avoid compromising account security.
+
+## Get additional help
+
+Additional information on ways to reach out for support can be found in [SUPPORT.md](https://github.com/Azure/azure-sdk-for-go/blob/main/SUPPORT.md).

vendor/github.com/Azure/azure-sdk-for-go/sdk/azidentity/azidentity.go

@@ -0,0 +1,165 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package azidentity
+
+import (
+	"bytes"
+	"context"
+	"errors"
+	"io"
+	"net/http"
+	"net/url"
+	"os"
+	"regexp"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/cloud"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/streaming"
+	"github.com/AzureAD/microsoft-authentication-library-for-go/apps/confidential"
+	"github.com/AzureAD/microsoft-authentication-library-for-go/apps/public"
+)
+
+const (
+	azureAuthorityHost             = "AZURE_AUTHORITY_HOST"
+	azureClientCertificatePassword = "AZURE_CLIENT_CERTIFICATE_PASSWORD"
+	azureClientCertificatePath     = "AZURE_CLIENT_CERTIFICATE_PATH"
+	azureClientID                  = "AZURE_CLIENT_ID"
+	azureClientSecret              = "AZURE_CLIENT_SECRET"
+	azurePassword                  = "AZURE_PASSWORD"
+	azureRegionalAuthorityName     = "AZURE_REGIONAL_AUTHORITY_NAME"
+	azureTenantID                  = "AZURE_TENANT_ID"
+	azureUsername                  = "AZURE_USERNAME"
+
+	organizationsTenantID   = "organizations"
+	developerSignOnClientID = "04b07795-8ddb-461a-bbee-02f9e1bf7b46"
+	defaultSuffix           = "/.default"
+	tenantIDValidationErr   = "invalid tenantID. You can locate your tenantID by following the instructions listed here: https://docs.microsoft.com/partner-center/find-ids-and-domain-names"
+)
+
+func getConfidentialClient(clientID, tenantID string, cred confidential.Credential, co *azcore.ClientOptions, additionalOpts ...confidential.Option) (confidential.Client, error) {
+	if !validTenantID(tenantID) {
+		return confidential.Client{}, errors.New(tenantIDValidationErr)
+	}
+	authorityHost, err := setAuthorityHost(co.Cloud)
+	if err != nil {
+		return confidential.Client{}, err
+	}
+	o := []confidential.Option{
+		confidential.WithAuthority(runtime.JoinPaths(authorityHost, tenantID)),
+		confidential.WithAzureRegion(os.Getenv(azureRegionalAuthorityName)),
+		confidential.WithHTTPClient(newPipelineAdapter(co)),
+	}
+	o = append(o, additionalOpts...)
+	return confidential.New(clientID, cred, o...)
+}
+
+func getPublicClient(clientID, tenantID string, co *azcore.ClientOptions) (public.Client, error) {
+	if !validTenantID(tenantID) {
+		return public.Client{}, errors.New(tenantIDValidationErr)
+	}
+	authorityHost, err := setAuthorityHost(co.Cloud)
+	if err != nil {
+		return public.Client{}, err
+	}
+	return public.New(clientID,
+		public.WithAuthority(runtime.JoinPaths(authorityHost, tenantID)),
+		public.WithHTTPClient(newPipelineAdapter(co)),
+	)
+}
+
+// setAuthorityHost initializes the authority host for credentials. Precedence is:
+// 1. cloud.Configuration.ActiveDirectoryAuthorityHost value set by user
+// 2. value of AZURE_AUTHORITY_HOST
+// 3. default: Azure Public Cloud
+func setAuthorityHost(cc cloud.Configuration) (string, error) {
+	host := cc.ActiveDirectoryAuthorityHost
+	if host == "" {
+		if len(cc.Services) > 0 {
+			return "", errors.New("missing ActiveDirectoryAuthorityHost for specified cloud")
+		}
+		host = cloud.AzurePublic.ActiveDirectoryAuthorityHost
+		if envAuthorityHost := os.Getenv(azureAuthorityHost); envAuthorityHost != "" {
+			host = envAuthorityHost
+		}
+	}
+	u, err := url.Parse(host)
+	if err != nil {
+		return "", err
+	}
+	if u.Scheme != "https" {
+		return "", errors.New("cannot use an authority host without https")
+	}
+	return host, nil
+}
+
+// validTenantID return true is it receives a valid tenantID, returns false otherwise
+func validTenantID(tenantID string) bool {
+	match, err := regexp.MatchString("^[0-9a-zA-Z-.]+$", tenantID)
+	if err != nil {
+		return false
+	}
+	return match
+}
+
+func newPipelineAdapter(opts *azcore.ClientOptions) pipelineAdapter {
+	pl := runtime.NewPipeline(component, version, runtime.PipelineOptions{}, opts)
+	return pipelineAdapter{pl: pl}
+}
+
+type pipelineAdapter struct {
+	pl runtime.Pipeline
+}
+
+func (p pipelineAdapter) CloseIdleConnections() {
+	// do nothing
+}
+
+func (p pipelineAdapter) Do(r *http.Request) (*http.Response, error) {
+	req, err := runtime.NewRequest(r.Context(), r.Method, r.URL.String())
+	if err != nil {
+		return nil, err
+	}
+	if r.Body != nil && r.Body != http.NoBody {
+		// create a rewindable body from the existing body as required
+		var body io.ReadSeekCloser
+		if rsc, ok := r.Body.(io.ReadSeekCloser); ok {
+			body = rsc
+		} else {
+			b, err := io.ReadAll(r.Body)
+			if err != nil {
+				return nil, err
+			}
+			body = streaming.NopCloser(bytes.NewReader(b))
+		}
+		err = req.SetBody(body, r.Header.Get("Content-Type"))
+		if err != nil {
+			return nil, err
+		}
+	}
+	resp, err := p.pl.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	return resp, err
+}
+
+// enables fakes for test scenarios
+type confidentialClient interface {
+	AcquireTokenSilent(ctx context.Context, scopes []string, options ...confidential.AcquireSilentOption) (confidential.AuthResult, error)
+	AcquireTokenByAuthCode(ctx context.Context, code string, redirectURI string, scopes []string, options ...confidential.AcquireByAuthCodeOption) (confidential.AuthResult, error)
+	AcquireTokenByCredential(ctx context.Context, scopes []string, options ...confidential.AcquireByCredentialOption) (confidential.AuthResult, error)
+}
+
+// enables fakes for test scenarios
+type publicClient interface {
+	AcquireTokenSilent(ctx context.Context, scopes []string, options ...public.AcquireSilentOption) (public.AuthResult, error)
+	AcquireTokenByUsernamePassword(ctx context.Context, scopes []string, username string, password string, options ...public.AcquireByUsernamePasswordOption) (public.AuthResult, error)
+	AcquireTokenByDeviceCode(ctx context.Context, scopes []string, options ...public.AcquireByDeviceCodeOption) (public.DeviceCode, error)
+	AcquireTokenByAuthCode(ctx context.Context, code string, redirectURI string, scopes []string, options ...public.AcquireByAuthCodeOption) (public.AuthResult, error)
+	AcquireTokenInteractive(ctx context.Context, scopes []string, options ...public.AcquireInteractiveOption) (public.AuthResult, error)
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azidentity/azure_cli_credential.go

@@ -0,0 +1,189 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package azidentity
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"os"
+	"os/exec"
+	"regexp"
+	"runtime"
+	"strings"
+	"time"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+)
+
+const credNameAzureCLI = "AzureCLICredential"
+
+// used by tests to fake invoking the CLI
+type azureCLITokenProvider func(ctx context.Context, resource string, tenantID string) ([]byte, error)
+
+// AzureCLICredentialOptions contains optional parameters for AzureCLICredential.
+type AzureCLICredentialOptions struct {
+	// TenantID identifies the tenant the credential should authenticate in.
+	// Defaults to the CLI's default tenant, which is typically the home tenant of the logged in user.
+	TenantID string
+
+	tokenProvider azureCLITokenProvider
+}
+
+// init returns an instance of AzureCLICredentialOptions initialized with default values.
+func (o *AzureCLICredentialOptions) init() {
+	if o.tokenProvider == nil {
+		o.tokenProvider = defaultTokenProvider()
+	}
+}
+
+// AzureCLICredential authenticates as the identity logged in to the Azure CLI.
+type AzureCLICredential struct {
+	tokenProvider azureCLITokenProvider
+	tenantID      string
+}
+
+// NewAzureCLICredential constructs an AzureCLICredential. Pass nil to accept default options.
+func NewAzureCLICredential(options *AzureCLICredentialOptions) (*AzureCLICredential, error) {
+	cp := AzureCLICredentialOptions{}
+	if options != nil {
+		cp = *options
+	}
+	cp.init()
+	return &AzureCLICredential{
+		tokenProvider: cp.tokenProvider,
+		tenantID:      cp.TenantID,
+	}, nil
+}
+
+// GetToken requests a token from the Azure CLI. This credential doesn't cache tokens, so every call invokes the CLI.
+// This method is called automatically by Azure SDK clients.
+func (c *AzureCLICredential) GetToken(ctx context.Context, opts policy.TokenRequestOptions) (azcore.AccessToken, error) {
+	if len(opts.Scopes) != 1 {
+		return azcore.AccessToken{}, errors.New(credNameAzureCLI + ": GetToken() requires exactly one scope")
+	}
+	// CLI expects an AAD v1 resource, not a v2 scope
+	scope := strings.TrimSuffix(opts.Scopes[0], defaultSuffix)
+	at, err := c.authenticate(ctx, scope)
+	if err != nil {
+		return azcore.AccessToken{}, err
+	}
+	logGetTokenSuccess(c, opts)
+	return at, nil
+}
+
+const timeoutCLIRequest = 10 * time.Second
+
+func (c *AzureCLICredential) authenticate(ctx context.Context, resource string) (azcore.AccessToken, error) {
+	output, err := c.tokenProvider(ctx, resource, c.tenantID)
+	if err != nil {
+		return azcore.AccessToken{}, err
+	}
+
+	return c.createAccessToken(output)
+}
+
+func defaultTokenProvider() func(ctx context.Context, resource string, tenantID string) ([]byte, error) {
+	return func(ctx context.Context, resource string, tenantID string) ([]byte, error) {
+		match, err := regexp.MatchString("^[0-9a-zA-Z-.:/]+$", resource)
+		if err != nil {
+			return nil, err
+		}
+		if !match {
+			return nil, fmt.Errorf(`%s: unexpected scope "%s". Only alphanumeric characters and ".", ";", "-", and "/" are allowed`, credNameAzureCLI, resource)
+		}
+
+		ctx, cancel := context.WithTimeout(ctx, timeoutCLIRequest)
+		defer cancel()
+
+		commandLine := "az account get-access-token -o json --resource " + resource
+		if tenantID != "" {
+			commandLine += " --tenant " + tenantID
+		}
+		var cliCmd *exec.Cmd
+		if runtime.GOOS == "windows" {
+			dir := os.Getenv("SYSTEMROOT")
+			if dir == "" {
+				return nil, newCredentialUnavailableError(credNameAzureCLI, "environment variable 'SYSTEMROOT' has no value")
+			}
+			cliCmd = exec.CommandContext(ctx, "cmd.exe", "/c", commandLine)
+			cliCmd.Dir = dir
+		} else {
+			cliCmd = exec.CommandContext(ctx, "/bin/sh", "-c", commandLine)
+			cliCmd.Dir = "/bin"
+		}
+		cliCmd.Env = os.Environ()
+		var stderr bytes.Buffer
+		cliCmd.Stderr = &stderr
+
+		output, err := cliCmd.Output()
+		if err != nil {
+			msg := stderr.String()
+			var exErr *exec.ExitError
+			if errors.As(err, &exErr) && exErr.ExitCode() == 127 || strings.HasPrefix(msg, "'az' is not recognized") {
+				msg = "Azure CLI not found on path"
+			}
+			if msg == "" {
+				msg = err.Error()
+			}
+			return nil, newCredentialUnavailableError(credNameAzureCLI, msg)
+		}
+
+		return output, nil
+	}
+}
+
+func (c *AzureCLICredential) createAccessToken(tk []byte) (azcore.AccessToken, error) {
+	t := struct {
+		AccessToken      string `json:"accessToken"`
+		Authority        string `json:"_authority"`
+		ClientID         string `json:"_clientId"`
+		ExpiresOn        string `json:"expiresOn"`
+		IdentityProvider string `json:"identityProvider"`
+		IsMRRT           bool   `json:"isMRRT"`
+		RefreshToken     string `json:"refreshToken"`
+		Resource         string `json:"resource"`
+		TokenType        string `json:"tokenType"`
+		UserID           string `json:"userId"`
+	}{}
+	err := json.Unmarshal(tk, &t)
+	if err != nil {
+		return azcore.AccessToken{}, err
+	}
+
+	tokenExpirationDate, err := parseExpirationDate(t.ExpiresOn)
+	if err != nil {
+		return azcore.AccessToken{}, fmt.Errorf("Error parsing Token Expiration Date %q: %+v", t.ExpiresOn, err)
+	}
+
+	converted := azcore.AccessToken{
+		Token:     t.AccessToken,
+		ExpiresOn: *tokenExpirationDate,
+	}
+	return converted, nil
+}
+
+// parseExpirationDate parses either a Azure CLI or CloudShell date into a time object
+func parseExpirationDate(input string) (*time.Time, error) {
+	// CloudShell (and potentially the Azure CLI in future)
+	expirationDate, cloudShellErr := time.Parse(time.RFC3339, input)
+	if cloudShellErr != nil {
+		// Azure CLI (Python) e.g. 2017-08-31 19:48:57.998857 (plus the local timezone)
+		const cliFormat = "2006-01-02 15:04:05.999999"
+		expirationDate, cliErr := time.ParseInLocation(cliFormat, input, time.Local)
+		if cliErr != nil {
+			return nil, fmt.Errorf("Error parsing expiration date %q.\n\nCloudShell Error: \n%+v\n\nCLI Error:\n%+v", input, cloudShellErr, cliErr)
+		}
+		return &expirationDate, nil
+	}
+	return &expirationDate, nil
+}
+
+var _ azcore.TokenCredential = (*AzureCLICredential)(nil)

vendor/github.com/Azure/azure-sdk-for-go/sdk/azidentity/chained_token_credential.go

@@ -0,0 +1,133 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package azidentity
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"strings"
+	"sync"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+	"github.com/Azure/azure-sdk-for-go/sdk/internal/log"
+)
+
+// ChainedTokenCredentialOptions contains optional parameters for ChainedTokenCredential.
+type ChainedTokenCredentialOptions struct {
+	// RetrySources configures how the credential uses its sources. When true, the credential always attempts to
+	// authenticate through each source in turn, stopping when one succeeds. When false, the credential authenticates
+	// only through this first successful source--it never again tries the sources which failed.
+	RetrySources bool
+}
+
+// ChainedTokenCredential links together multiple credentials and tries them sequentially when authenticating. By default,
+// it tries all the credentials until one authenticates, after which it always uses that credential.
+type ChainedTokenCredential struct {
+	cond                 *sync.Cond
+	iterating            bool
+	name                 string
+	retrySources         bool
+	sources              []azcore.TokenCredential
+	successfulCredential azcore.TokenCredential
+}
+
+// NewChainedTokenCredential creates a ChainedTokenCredential. Pass nil for options to accept defaults.
+func NewChainedTokenCredential(sources []azcore.TokenCredential, options *ChainedTokenCredentialOptions) (*ChainedTokenCredential, error) {
+	if len(sources) == 0 {
+		return nil, errors.New("sources must contain at least one TokenCredential")
+	}
+	for _, source := range sources {
+		if source == nil { // cannot have a nil credential in the chain or else the application will panic when GetToken() is called on nil
+			return nil, errors.New("sources cannot contain nil")
+		}
+	}
+	cp := make([]azcore.TokenCredential, len(sources))
+	copy(cp, sources)
+	if options == nil {
+		options = &ChainedTokenCredentialOptions{}
+	}
+	return &ChainedTokenCredential{
+		cond:         sync.NewCond(&sync.Mutex{}),
+		name:         "ChainedTokenCredential",
+		retrySources: options.RetrySources,
+		sources:      cp,
+	}, nil
+}
+
+// GetToken calls GetToken on the chained credentials in turn, stopping when one returns a token.
+// This method is called automatically by Azure SDK clients.
+func (c *ChainedTokenCredential) GetToken(ctx context.Context, opts policy.TokenRequestOptions) (azcore.AccessToken, error) {
+	if !c.retrySources {
+		// ensure only one goroutine at a time iterates the sources and perhaps sets c.successfulCredential
+		c.cond.L.Lock()
+		for {
+			if c.successfulCredential != nil {
+				c.cond.L.Unlock()
+				return c.successfulCredential.GetToken(ctx, opts)
+			}
+			if !c.iterating {
+				c.iterating = true
+				// allow other goroutines to wait while this one iterates
+				c.cond.L.Unlock()
+				break
+			}
+			c.cond.Wait()
+		}
+	}
+
+	var err error
+	var errs []error
+	var token azcore.AccessToken
+	var successfulCredential azcore.TokenCredential
+	for _, cred := range c.sources {
+		token, err = cred.GetToken(ctx, opts)
+		if err == nil {
+			log.Writef(EventAuthentication, "%s authenticated with %s", c.name, extractCredentialName(cred))
+			successfulCredential = cred
+			break
+		}
+		errs = append(errs, err)
+		if _, ok := err.(*credentialUnavailableError); !ok {
+			break
+		}
+	}
+	if c.iterating {
+		c.cond.L.Lock()
+		c.successfulCredential = successfulCredential
+		c.iterating = false
+		c.cond.L.Unlock()
+		c.cond.Broadcast()
+	}
+	// err is the error returned by the last GetToken call. It will be nil when that call succeeds
+	if err != nil {
+		// return credentialUnavailableError iff all sources did so; return AuthenticationFailedError otherwise
+		msg := createChainedErrorMessage(errs)
+		if _, ok := err.(*credentialUnavailableError); ok {
+			err = newCredentialUnavailableError(c.name, msg)
+		} else {
+			res := getResponseFromError(err)
+			err = newAuthenticationFailedError(c.name, msg, res)
+		}
+	}
+	return token, err
+}
+
+func createChainedErrorMessage(errs []error) string {
+	msg := "failed to acquire a token.\nAttempted credentials:"
+	for _, err := range errs {
+		msg += fmt.Sprintf("\n\t%s", err.Error())
+	}
+	return msg
+}
+
+func extractCredentialName(credential azcore.TokenCredential) string {
+	return strings.TrimPrefix(fmt.Sprintf("%T", credential), "*azidentity.")
+}
+
+var _ azcore.TokenCredential = (*ChainedTokenCredential)(nil)

vendor/github.com/Azure/azure-sdk-for-go/sdk/azidentity/ci.yml

@@ -0,0 +1,47 @@
+# NOTE: Please refer to https://aka.ms/azsdk/engsys/ci-yaml before editing this file.
+trigger:
+  branches:
+    include:
+      - main
+      - feature/*
+      - hotfix/*
+      - release/*
+  paths:
+    include:
+    - sdk/azidentity/
+
+pr:
+  branches:
+    include:
+      - main
+      - feature/*
+      - hotfix/*
+      - release/*
+  paths:
+    include:
+    - sdk/azidentity/
+
+stages:
+- template: /eng/pipelines/templates/jobs/archetype-sdk-client.yml
+  parameters:
+    RunLiveTests: true
+    ServiceDirectory: 'azidentity'
+    PreSteps:
+      - pwsh: |
+          [System.Convert]::FromBase64String($env:PFX_CONTENTS) | Set-Content -Path $(Agent.TempDirectory)/test.pfx -AsByteStream
+          Set-Content -Path $(Agent.TempDirectory)/test.pem -Value $env:PEM_CONTENTS
+          [System.Convert]::FromBase64String($env:SNI_CONTENTS) | Set-Content -Path $(Agent.TempDirectory)/testsni.pfx -AsByteStream
+        env:
+          PFX_CONTENTS: $(net-identity-spcert-pfx)
+          PEM_CONTENTS: $(net-identity-spcert-pem)
+          SNI_CONTENTS: $(net-identity-spcert-sni)
+    EnvVars:
+      AZURE_IDENTITY_TEST_TENANTID: $(net-identity-tenantid)
+      AZURE_IDENTITY_TEST_USERNAME: $(net-identity-username)
+      AZURE_IDENTITY_TEST_PASSWORD: $(net-identity-password)
+      IDENTITY_SP_TENANT_ID: $(net-identity-sp-tenantid)
+      IDENTITY_SP_CLIENT_ID: $(net-identity-sp-clientid)
+      IDENTITY_SP_CLIENT_SECRET: $(net-identity-sp-clientsecret)
+      IDENTITY_SP_CERT_PEM: $(Agent.TempDirectory)/test.pem
+      IDENTITY_SP_CERT_PFX: $(Agent.TempDirectory)/test.pfx
+      IDENTITY_SP_CERT_SNI: $(Agent.TempDirectory)/testsni.pfx

vendor/github.com/Azure/azure-sdk-for-go/sdk/azidentity/client_assertion_credential.go

@@ -0,0 +1,74 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package azidentity
+
+import (
+	"context"
+	"errors"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+	"github.com/AzureAD/microsoft-authentication-library-for-go/apps/confidential"
+)
+
+const credNameAssertion = "ClientAssertionCredential"
+
+// ClientAssertionCredential authenticates an application with assertions provided by a callback function.
+// This credential is for advanced scenarios. ClientCertificateCredential has a more convenient API for
+// the most common assertion scenario, authenticating a service principal with a certificate. See
+// [Azure AD documentation] for details of the assertion format.
+//
+// [Azure AD documentation]: https://docs.microsoft.com/azure/active-directory/develop/active-directory-certificate-credentials#assertion-format
+type ClientAssertionCredential struct {
+	client confidentialClient
+}
+
+// ClientAssertionCredentialOptions contains optional parameters for ClientAssertionCredential.
+type ClientAssertionCredentialOptions struct {
+	azcore.ClientOptions
+}
+
+// NewClientAssertionCredential constructs a ClientAssertionCredential. The getAssertion function must be thread safe. Pass nil for options to accept defaults.
+func NewClientAssertionCredential(tenantID, clientID string, getAssertion func(context.Context) (string, error), options *ClientAssertionCredentialOptions) (*ClientAssertionCredential, error) {
+	if getAssertion == nil {
+		return nil, errors.New("getAssertion must be a function that returns assertions")
+	}
+	if options == nil {
+		options = &ClientAssertionCredentialOptions{}
+	}
+	cred := confidential.NewCredFromAssertionCallback(
+		func(ctx context.Context, _ confidential.AssertionRequestOptions) (string, error) {
+			return getAssertion(ctx)
+		},
+	)
+	c, err := getConfidentialClient(clientID, tenantID, cred, &options.ClientOptions)
+	if err != nil {
+		return nil, err
+	}
+	return &ClientAssertionCredential{client: c}, nil
+}
+
+// GetToken requests an access token from Azure Active Directory. This method is called automatically by Azure SDK clients.
+func (c *ClientAssertionCredential) GetToken(ctx context.Context, opts policy.TokenRequestOptions) (azcore.AccessToken, error) {
+	if len(opts.Scopes) == 0 {
+		return azcore.AccessToken{}, errors.New(credNameAssertion + ": GetToken() requires at least one scope")
+	}
+	ar, err := c.client.AcquireTokenSilent(ctx, opts.Scopes)
+	if err == nil {
+		logGetTokenSuccess(c, opts)
+		return azcore.AccessToken{Token: ar.AccessToken, ExpiresOn: ar.ExpiresOn.UTC()}, err
+	}
+
+	ar, err = c.client.AcquireTokenByCredential(ctx, opts.Scopes)
+	if err != nil {
+		return azcore.AccessToken{}, newAuthenticationFailedErrorFromMSALError(credNameAssertion, err)
+	}
+	logGetTokenSuccess(c, opts)
+	return azcore.AccessToken{Token: ar.AccessToken, ExpiresOn: ar.ExpiresOn.UTC()}, err
+}
+
+var _ azcore.TokenCredential = (*ClientAssertionCredential)(nil)

vendor/github.com/Azure/azure-sdk-for-go/sdk/azidentity/client_certificate_credential.go

@@ -0,0 +1,163 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package azidentity
+
+import (
+	"context"
+	"crypto"
+	"crypto/x509"
+	"encoding/pem"
+	"errors"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+	"github.com/AzureAD/microsoft-authentication-library-for-go/apps/confidential"
+	"golang.org/x/crypto/pkcs12"
+)
+
+const credNameCert = "ClientCertificateCredential"
+
+// ClientCertificateCredentialOptions contains optional parameters for ClientCertificateCredential.
+type ClientCertificateCredentialOptions struct {
+	azcore.ClientOptions
+
+	// SendCertificateChain controls whether the credential sends the public certificate chain in the x5c
+	// header of each token request's JWT. This is required for Subject Name/Issuer (SNI) authentication.
+	// Defaults to False.
+	SendCertificateChain bool
+}
+
+// ClientCertificateCredential authenticates a service principal with a certificate.
+type ClientCertificateCredential struct {
+	client confidentialClient
+}
+
+// NewClientCertificateCredential constructs a ClientCertificateCredential. Pass nil for options to accept defaults.
+func NewClientCertificateCredential(tenantID string, clientID string, certs []*x509.Certificate, key crypto.PrivateKey, options *ClientCertificateCredentialOptions) (*ClientCertificateCredential, error) {
+	if len(certs) == 0 {
+		return nil, errors.New("at least one certificate is required")
+	}
+	if options == nil {
+		options = &ClientCertificateCredentialOptions{}
+	}
+	cred, err := confidential.NewCredFromCertChain(certs, key)
+	if err != nil {
+		return nil, err
+	}
+	var o []confidential.Option
+	if options.SendCertificateChain {
+		o = append(o, confidential.WithX5C())
+	}
+	c, err := getConfidentialClient(clientID, tenantID, cred, &options.ClientOptions, o...)
+	if err != nil {
+		return nil, err
+	}
+	return &ClientCertificateCredential{client: c}, nil
+}
+
+// GetToken requests an access token from Azure Active Directory. This method is called automatically by Azure SDK clients.
+func (c *ClientCertificateCredential) GetToken(ctx context.Context, opts policy.TokenRequestOptions) (azcore.AccessToken, error) {
+	if len(opts.Scopes) == 0 {
+		return azcore.AccessToken{}, errors.New(credNameCert + ": GetToken() requires at least one scope")
+	}
+	ar, err := c.client.AcquireTokenSilent(ctx, opts.Scopes)
+	if err == nil {
+		logGetTokenSuccess(c, opts)
+		return azcore.AccessToken{Token: ar.AccessToken, ExpiresOn: ar.ExpiresOn.UTC()}, err
+	}
+
+	ar, err = c.client.AcquireTokenByCredential(ctx, opts.Scopes)
+	if err != nil {
+		return azcore.AccessToken{}, newAuthenticationFailedErrorFromMSALError(credNameCert, err)
+	}
+	logGetTokenSuccess(c, opts)
+	return azcore.AccessToken{Token: ar.AccessToken, ExpiresOn: ar.ExpiresOn.UTC()}, err
+}
+
+// ParseCertificates loads certificates and a private key, in PEM or PKCS12 format, for use with NewClientCertificateCredential.
+// Pass nil for password if the private key isn't encrypted. This function can't decrypt keys in PEM format.
+func ParseCertificates(certData []byte, password []byte) ([]*x509.Certificate, crypto.PrivateKey, error) {
+	var blocks []*pem.Block
+	var err error
+	if len(password) == 0 {
+		blocks, err = loadPEMCert(certData)
+	}
+	if len(blocks) == 0 || err != nil {
+		blocks, err = loadPKCS12Cert(certData, string(password))
+	}
+	if err != nil {
+		return nil, nil, err
+	}
+	var certs []*x509.Certificate
+	var pk crypto.PrivateKey
+	for _, block := range blocks {
+		switch block.Type {
+		case "CERTIFICATE":
+			c, err := x509.ParseCertificate(block.Bytes)
+			if err != nil {
+				return nil, nil, err
+			}
+			certs = append(certs, c)
+		case "PRIVATE KEY":
+			if pk != nil {
+				return nil, nil, errors.New("certData contains multiple private keys")
+			}
+			pk, err = x509.ParsePKCS8PrivateKey(block.Bytes)
+			if err != nil {
+				pk, err = x509.ParsePKCS1PrivateKey(block.Bytes)
+			}
+			if err != nil {
+				return nil, nil, err
+			}
+		case "RSA PRIVATE KEY":
+			if pk != nil {
+				return nil, nil, errors.New("certData contains multiple private keys")
+			}
+			pk, err = x509.ParsePKCS1PrivateKey(block.Bytes)
+			if err != nil {
+				return nil, nil, err
+			}
+		}
+	}
+	if len(certs) == 0 {
+		return nil, nil, errors.New("found no certificate")
+	}
+	if pk == nil {
+		return nil, nil, errors.New("found no private key")
+	}
+	return certs, pk, nil
+}
+
+func loadPEMCert(certData []byte) ([]*pem.Block, error) {
+	blocks := []*pem.Block{}
+	for {
+		var block *pem.Block
+		block, certData = pem.Decode(certData)
+		if block == nil {
+			break
+		}
+		blocks = append(blocks, block)
+	}
+	if len(blocks) == 0 {
+		return nil, errors.New("didn't find any PEM blocks")
+	}
+	return blocks, nil
+}
+
+func loadPKCS12Cert(certData []byte, password string) ([]*pem.Block, error) {
+	blocks, err := pkcs12.ToPEM(certData, password)
+	if err != nil {
+		return nil, err
+	}
+	if len(blocks) == 0 {
+		// not mentioning PKCS12 in this message because we end up here when certData is garbage
+		return nil, errors.New("didn't find any certificate content")
+	}
+	return blocks, err
+}
+
+var _ azcore.TokenCredential = (*ClientCertificateCredential)(nil)

vendor/github.com/Azure/azure-sdk-for-go/sdk/azidentity/client_secret_credential.go

@@ -0,0 +1,65 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package azidentity
+
+import (
+	"context"
+	"errors"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+	"github.com/AzureAD/microsoft-authentication-library-for-go/apps/confidential"
+)
+
+const credNameSecret = "ClientSecretCredential"
+
+// ClientSecretCredentialOptions contains optional parameters for ClientSecretCredential.
+type ClientSecretCredentialOptions struct {
+	azcore.ClientOptions
+}
+
+// ClientSecretCredential authenticates an application with a client secret.
+type ClientSecretCredential struct {
+	client confidentialClient
+}
+
+// NewClientSecretCredential constructs a ClientSecretCredential. Pass nil for options to accept defaults.
+func NewClientSecretCredential(tenantID string, clientID string, clientSecret string, options *ClientSecretCredentialOptions) (*ClientSecretCredential, error) {
+	if options == nil {
+		options = &ClientSecretCredentialOptions{}
+	}
+	cred, err := confidential.NewCredFromSecret(clientSecret)
+	if err != nil {
+		return nil, err
+	}
+	c, err := getConfidentialClient(clientID, tenantID, cred, &options.ClientOptions)
+	if err != nil {
+		return nil, err
+	}
+	return &ClientSecretCredential{client: c}, nil
+}
+
+// GetToken requests an access token from Azure Active Directory. This method is called automatically by Azure SDK clients.
+func (c *ClientSecretCredential) GetToken(ctx context.Context, opts policy.TokenRequestOptions) (azcore.AccessToken, error) {
+	if len(opts.Scopes) == 0 {
+		return azcore.AccessToken{}, errors.New(credNameSecret + ": GetToken() requires at least one scope")
+	}
+	ar, err := c.client.AcquireTokenSilent(ctx, opts.Scopes)
+	if err == nil {
+		logGetTokenSuccess(c, opts)
+		return azcore.AccessToken{Token: ar.AccessToken, ExpiresOn: ar.ExpiresOn.UTC()}, err
+	}
+
+	ar, err = c.client.AcquireTokenByCredential(ctx, opts.Scopes)
+	if err != nil {
+		return azcore.AccessToken{}, newAuthenticationFailedErrorFromMSALError(credNameSecret, err)
+	}
+	logGetTokenSuccess(c, opts)
+	return azcore.AccessToken{Token: ar.AccessToken, ExpiresOn: ar.ExpiresOn.UTC()}, err
+}
+
+var _ azcore.TokenCredential = (*ClientSecretCredential)(nil)

vendor/github.com/Azure/azure-sdk-for-go/sdk/azidentity/default_azure_credential.go

@@ -0,0 +1,134 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package azidentity
+
+import (
+	"context"
+	"errors"
+	"os"
+	"strings"
+	"time"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+	"github.com/Azure/azure-sdk-for-go/sdk/internal/log"
+)
+
+// DefaultAzureCredentialOptions contains optional parameters for DefaultAzureCredential.
+// These options may not apply to all credentials in the chain.
+type DefaultAzureCredentialOptions struct {
+	azcore.ClientOptions
+
+	// TenantID identifies the tenant the Azure CLI should authenticate in.
+	// Defaults to the CLI's default tenant, which is typically the home tenant of the user logged in to the CLI.
+	TenantID string
+}
+
+// DefaultAzureCredential is a default credential chain for applications that will deploy to Azure.
+// It combines credentials suitable for deployment with credentials suitable for local development.
+// It attempts to authenticate with each of these credential types, in the following order, stopping when one provides a token:
+//
+//	EnvironmentCredential
+//	ManagedIdentityCredential
+//	AzureCLICredential
+//
+// Consult the documentation for these credential types for more information on how they authenticate.
+// Once a credential has successfully authenticated, DefaultAzureCredential will use that credential for
+// every subsequent authentication.
+type DefaultAzureCredential struct {
+	chain *ChainedTokenCredential
+}
+
+// NewDefaultAzureCredential creates a DefaultAzureCredential. Pass nil for options to accept defaults.
+func NewDefaultAzureCredential(options *DefaultAzureCredentialOptions) (*DefaultAzureCredential, error) {
+	var creds []azcore.TokenCredential
+	var errorMessages []string
+
+	if options == nil {
+		options = &DefaultAzureCredentialOptions{}
+	}
+
+	envCred, err := NewEnvironmentCredential(&EnvironmentCredentialOptions{ClientOptions: options.ClientOptions})
+	if err == nil {
+		creds = append(creds, envCred)
+	} else {
+		errorMessages = append(errorMessages, "EnvironmentCredential: "+err.Error())
+		creds = append(creds, &defaultCredentialErrorReporter{credType: "EnvironmentCredential", err: err})
+	}
+
+	o := &ManagedIdentityCredentialOptions{ClientOptions: options.ClientOptions}
+	if ID, ok := os.LookupEnv(azureClientID); ok {
+		o.ID = ClientID(ID)
+	}
+	msiCred, err := NewManagedIdentityCredential(o)
+	if err == nil {
+		creds = append(creds, msiCred)
+		msiCred.mic.imdsTimeout = time.Second
+	} else {
+		errorMessages = append(errorMessages, credNameManagedIdentity+": "+err.Error())
+		creds = append(creds, &defaultCredentialErrorReporter{credType: credNameManagedIdentity, err: err})
+	}
+
+	cliCred, err := NewAzureCLICredential(&AzureCLICredentialOptions{TenantID: options.TenantID})
+	if err == nil {
+		creds = append(creds, cliCred)
+	} else {
+		errorMessages = append(errorMessages, credNameAzureCLI+": "+err.Error())
+		creds = append(creds, &defaultCredentialErrorReporter{credType: credNameAzureCLI, err: err})
+	}
+
+	err = defaultAzureCredentialConstructorErrorHandler(len(creds), errorMessages)
+	if err != nil {
+		return nil, err
+	}
+
+	chain, err := NewChainedTokenCredential(creds, nil)
+	if err != nil {
+		return nil, err
+	}
+	chain.name = "DefaultAzureCredential"
+	return &DefaultAzureCredential{chain: chain}, nil
+}
+
+// GetToken requests an access token from Azure Active Directory. This method is called automatically by Azure SDK clients.
+func (c *DefaultAzureCredential) GetToken(ctx context.Context, opts policy.TokenRequestOptions) (azcore.AccessToken, error) {
+	return c.chain.GetToken(ctx, opts)
+}
+
+var _ azcore.TokenCredential = (*DefaultAzureCredential)(nil)
+
+func defaultAzureCredentialConstructorErrorHandler(numberOfSuccessfulCredentials int, errorMessages []string) (err error) {
+	errorMessage := strings.Join(errorMessages, "\n\t")
+
+	if numberOfSuccessfulCredentials == 0 {
+		return errors.New(errorMessage)
+	}
+
+	if len(errorMessages) != 0 {
+		log.Writef(EventAuthentication, "NewDefaultAzureCredential failed to initialize some credentials:\n\t%s", errorMessage)
+	}
+
+	return nil
+}
+
+// defaultCredentialErrorReporter is a substitute for credentials that couldn't be constructed.
+// Its GetToken method always returns a credentialUnavailableError having the same message as
+// the error that prevented constructing the credential. This ensures the message is present
+// in the error returned by ChainedTokenCredential.GetToken()
+type defaultCredentialErrorReporter struct {
+	credType string
+	err      error
+}
+
+func (d *defaultCredentialErrorReporter) GetToken(ctx context.Context, opts policy.TokenRequestOptions) (azcore.AccessToken, error) {
+	if _, ok := d.err.(*credentialUnavailableError); ok {
+		return azcore.AccessToken{}, d.err
+	}
+	return azcore.AccessToken{}, newCredentialUnavailableError(d.credType, d.err.Error())
+}
+
+var _ azcore.TokenCredential = (*defaultCredentialErrorReporter)(nil)

vendor/github.com/Azure/azure-sdk-for-go/sdk/azidentity/device_code_credential.go

@@ -0,0 +1,119 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package azidentity
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+	"github.com/AzureAD/microsoft-authentication-library-for-go/apps/public"
+)
+
+const credNameDeviceCode = "DeviceCodeCredential"
+
+// DeviceCodeCredentialOptions contains optional parameters for DeviceCodeCredential.
+type DeviceCodeCredentialOptions struct {
+	azcore.ClientOptions
+
+	// TenantID is the Azure Active Directory tenant the credential authenticates in. Defaults to the
+	// "organizations" tenant, which can authenticate work and school accounts. Required for single-tenant
+	// applications.
+	TenantID string
+	// ClientID is the ID of the application users will authenticate to.
+	// Defaults to the ID of an Azure development application.
+	ClientID string
+	// UserPrompt controls how the credential presents authentication instructions. The credential calls
+	// this function with authentication details when it receives a device code. By default, the credential
+	// prints these details to stdout.
+	UserPrompt func(context.Context, DeviceCodeMessage) error
+}
+
+func (o *DeviceCodeCredentialOptions) init() {
+	if o.TenantID == "" {
+		o.TenantID = organizationsTenantID
+	}
+	if o.ClientID == "" {
+		o.ClientID = developerSignOnClientID
+	}
+	if o.UserPrompt == nil {
+		o.UserPrompt = func(ctx context.Context, dc DeviceCodeMessage) error {
+			fmt.Println(dc.Message)
+			return nil
+		}
+	}
+}
+
+// DeviceCodeMessage contains the information a user needs to complete authentication.
+type DeviceCodeMessage struct {
+	// UserCode is the user code returned by the service.
+	UserCode string `json:"user_code"`
+	// VerificationURL is the URL at which the user must authenticate.
+	VerificationURL string `json:"verification_uri"`
+	// Message is user instruction from Azure Active Directory.
+	Message string `json:"message"`
+}
+
+// DeviceCodeCredential acquires tokens for a user via the device code flow, which has the
+// user browse to an Azure Active Directory URL, enter a code, and authenticate. It's useful
+// for authenticating a user in an environment without a web browser, such as an SSH session.
+// If a web browser is available, InteractiveBrowserCredential is more convenient because it
+// automatically opens a browser to the login page.
+type DeviceCodeCredential struct {
+	client     publicClient
+	userPrompt func(context.Context, DeviceCodeMessage) error
+	account    public.Account
+}
+
+// NewDeviceCodeCredential creates a DeviceCodeCredential. Pass nil to accept default options.
+func NewDeviceCodeCredential(options *DeviceCodeCredentialOptions) (*DeviceCodeCredential, error) {
+	cp := DeviceCodeCredentialOptions{}
+	if options != nil {
+		cp = *options
+	}
+	cp.init()
+	c, err := getPublicClient(cp.ClientID, cp.TenantID, &cp.ClientOptions)
+	if err != nil {
+		return nil, err
+	}
+	return &DeviceCodeCredential{userPrompt: cp.UserPrompt, client: c}, nil
+}
+
+// GetToken requests an access token from Azure Active Directory. It will begin the device code flow and poll until the user completes authentication.
+// This method is called automatically by Azure SDK clients.
+func (c *DeviceCodeCredential) GetToken(ctx context.Context, opts policy.TokenRequestOptions) (azcore.AccessToken, error) {
+	if len(opts.Scopes) == 0 {
+		return azcore.AccessToken{}, errors.New(credNameDeviceCode + ": GetToken() requires at least one scope")
+	}
+	ar, err := c.client.AcquireTokenSilent(ctx, opts.Scopes, public.WithSilentAccount(c.account))
+	if err == nil {
+		return azcore.AccessToken{Token: ar.AccessToken, ExpiresOn: ar.ExpiresOn.UTC()}, err
+	}
+	dc, err := c.client.AcquireTokenByDeviceCode(ctx, opts.Scopes)
+	if err != nil {
+		return azcore.AccessToken{}, newAuthenticationFailedErrorFromMSALError(credNameDeviceCode, err)
+	}
+	err = c.userPrompt(ctx, DeviceCodeMessage{
+		UserCode:        dc.Result.UserCode,
+		VerificationURL: dc.Result.VerificationURL,
+		Message:         dc.Result.Message,
+	})
+	if err != nil {
+		return azcore.AccessToken{}, err
+	}
+	ar, err = dc.AuthenticationResult(ctx)
+	if err != nil {
+		return azcore.AccessToken{}, newAuthenticationFailedErrorFromMSALError(credNameDeviceCode, err)
+	}
+	c.account = ar.Account
+	logGetTokenSuccess(c, opts)
+	return azcore.AccessToken{Token: ar.AccessToken, ExpiresOn: ar.ExpiresOn.UTC()}, err
+}
+
+var _ azcore.TokenCredential = (*DeviceCodeCredential)(nil)

vendor/github.com/Azure/azure-sdk-for-go/sdk/azidentity/environment_credential.go

@@ -0,0 +1,128 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package azidentity
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+	"github.com/Azure/azure-sdk-for-go/sdk/internal/log"
+)
+
+const envVarSendCertChain = "AZURE_CLIENT_SEND_CERTIFICATE_CHAIN"
+
+// EnvironmentCredentialOptions contains optional parameters for EnvironmentCredential
+type EnvironmentCredentialOptions struct {
+	azcore.ClientOptions
+}
+
+// EnvironmentCredential authenticates a service principal with a secret or certificate, or a user with a password, depending
+// on environment variable configuration. It reads configuration from these variables, in the following order:
+//
+// # Service principal with client secret
+//
+// AZURE_TENANT_ID: ID of the service principal's tenant. Also called its "directory" ID.
+//
+// AZURE_CLIENT_ID: the service principal's client ID
+//
+// AZURE_CLIENT_SECRET: one of the service principal's client secrets
+//
+// # Service principal with certificate
+//
+// AZURE_TENANT_ID: ID of the service principal's tenant. Also called its "directory" ID.
+//
+// AZURE_CLIENT_ID: the service principal's client ID
+//
+// AZURE_CLIENT_CERTIFICATE_PATH: path to a PEM or PKCS12 certificate file including the private key.
+//
+// AZURE_CLIENT_CERTIFICATE_PASSWORD: (optional) password for the certificate file.
+//
+// # User with username and password
+//
+// AZURE_TENANT_ID: (optional) tenant to authenticate in. Defaults to "organizations".
+//
+// AZURE_CLIENT_ID: client ID of the application the user will authenticate to
+//
+// AZURE_USERNAME: a username (usually an email address)
+//
+// AZURE_PASSWORD: the user's password
+type EnvironmentCredential struct {
+	cred azcore.TokenCredential
+}
+
+// NewEnvironmentCredential creates an EnvironmentCredential. Pass nil to accept default options.
+func NewEnvironmentCredential(options *EnvironmentCredentialOptions) (*EnvironmentCredential, error) {
+	if options == nil {
+		options = &EnvironmentCredentialOptions{}
+	}
+	tenantID := os.Getenv(azureTenantID)
+	if tenantID == "" {
+		return nil, errors.New("missing environment variable AZURE_TENANT_ID")
+	}
+	clientID := os.Getenv(azureClientID)
+	if clientID == "" {
+		return nil, errors.New("missing environment variable " + azureClientID)
+	}
+	if clientSecret := os.Getenv(azureClientSecret); clientSecret != "" {
+		log.Write(EventAuthentication, "EnvironmentCredential will authenticate with ClientSecretCredential")
+		o := &ClientSecretCredentialOptions{ClientOptions: options.ClientOptions}
+		cred, err := NewClientSecretCredential(tenantID, clientID, clientSecret, o)
+		if err != nil {
+			return nil, err
+		}
+		return &EnvironmentCredential{cred: cred}, nil
+	}
+	if certPath := os.Getenv(azureClientCertificatePath); certPath != "" {
+		log.Write(EventAuthentication, "EnvironmentCredential will authenticate with ClientCertificateCredential")
+		certData, err := os.ReadFile(certPath)
+		if err != nil {
+			return nil, fmt.Errorf(`failed to read certificate file "%s": %v`, certPath, err)
+		}
+		var password []byte
+		if v := os.Getenv(azureClientCertificatePassword); v != "" {
+			password = []byte(v)
+		}
+		certs, key, err := ParseCertificates(certData, password)
+		if err != nil {
+			return nil, fmt.Errorf(`failed to load certificate from "%s": %v`, certPath, err)
+		}
+		o := &ClientCertificateCredentialOptions{ClientOptions: options.ClientOptions}
+		if v, ok := os.LookupEnv(envVarSendCertChain); ok {
+			o.SendCertificateChain = v == "1" || strings.ToLower(v) == "true"
+		}
+		cred, err := NewClientCertificateCredential(tenantID, clientID, certs, key, o)
+		if err != nil {
+			return nil, err
+		}
+		return &EnvironmentCredential{cred: cred}, nil
+	}
+	if username := os.Getenv(azureUsername); username != "" {
+		if password := os.Getenv(azurePassword); password != "" {
+			log.Write(EventAuthentication, "EnvironmentCredential will authenticate with UsernamePasswordCredential")
+			o := &UsernamePasswordCredentialOptions{ClientOptions: options.ClientOptions}
+			cred, err := NewUsernamePasswordCredential(tenantID, clientID, username, password, o)
+			if err != nil {
+				return nil, err
+			}
+			return &EnvironmentCredential{cred: cred}, nil
+		}
+		return nil, errors.New("no value for AZURE_PASSWORD")
+	}
+	return nil, errors.New("incomplete environment variable configuration. Only AZURE_TENANT_ID and AZURE_CLIENT_ID are set")
+}
+
+// GetToken requests an access token from Azure Active Directory. This method is called automatically by Azure SDK clients.
+func (c *EnvironmentCredential) GetToken(ctx context.Context, opts policy.TokenRequestOptions) (azcore.AccessToken, error) {
+	return c.cred.GetToken(ctx, opts)
+}
+
+var _ azcore.TokenCredential = (*EnvironmentCredential)(nil)

vendor/github.com/Azure/azure-sdk-for-go/sdk/azidentity/errors.go

@@ -0,0 +1,124 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package azidentity
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/internal/errorinfo"
+	msal "github.com/AzureAD/microsoft-authentication-library-for-go/apps/errors"
+)
+
+// getResponseFromError retrieves the response carried by
+// an AuthenticationFailedError or MSAL CallErr, if any
+func getResponseFromError(err error) *http.Response {
+	var a *AuthenticationFailedError
+	var c msal.CallErr
+	var res *http.Response
+	if errors.As(err, &c) {
+		res = c.Resp
+	} else if errors.As(err, &a) {
+		res = a.RawResponse
+	}
+	return res
+}
+
+// AuthenticationFailedError indicates an authentication request has failed.
+type AuthenticationFailedError struct {
+	// RawResponse is the HTTP response motivating the error, if available.
+	RawResponse *http.Response
+
+	credType string
+	message  string
+}
+
+func newAuthenticationFailedError(credType string, message string, resp *http.Response) error {
+	return &AuthenticationFailedError{credType: credType, message: message, RawResponse: resp}
+}
+
+func newAuthenticationFailedErrorFromMSALError(credType string, err error) error {
+	res := getResponseFromError(err)
+	return newAuthenticationFailedError(credType, err.Error(), res)
+}
+
+// Error implements the error interface. Note that the message contents are not contractual and can change over time.
+func (e *AuthenticationFailedError) Error() string {
+	if e.RawResponse == nil {
+		return e.credType + ": " + e.message
+	}
+	msg := &bytes.Buffer{}
+	fmt.Fprintf(msg, e.credType+" authentication failed\n")
+	fmt.Fprintf(msg, "%s %s://%s%s\n", e.RawResponse.Request.Method, e.RawResponse.Request.URL.Scheme, e.RawResponse.Request.URL.Host, e.RawResponse.Request.URL.Path)
+	fmt.Fprintln(msg, "--------------------------------------------------------------------------------")
+	fmt.Fprintf(msg, "RESPONSE %s\n", e.RawResponse.Status)
+	fmt.Fprintln(msg, "--------------------------------------------------------------------------------")
+	body, err := io.ReadAll(e.RawResponse.Body)
+	e.RawResponse.Body.Close()
+	if err != nil {
+		fmt.Fprintf(msg, "Error reading response body: %v", err)
+	} else if len(body) > 0 {
+		e.RawResponse.Body = io.NopCloser(bytes.NewReader(body))
+		if err := json.Indent(msg, body, "", "  "); err != nil {
+			// failed to pretty-print so just dump it verbatim
+			fmt.Fprint(msg, string(body))
+		}
+	} else {
+		fmt.Fprint(msg, "Response contained no body")
+	}
+	fmt.Fprintln(msg, "\n--------------------------------------------------------------------------------")
+	var anchor string
+	switch e.credType {
+	case credNameAzureCLI:
+		anchor = "azure-cli"
+	case credNameCert:
+		anchor = "client-cert"
+	case credNameSecret:
+		anchor = "client-secret"
+	case credNameManagedIdentity:
+		anchor = "managed-id"
+	case credNameUserPassword:
+		anchor = "username-password"
+	}
+	if anchor != "" {
+		fmt.Fprintf(msg, "To troubleshoot, visit https://aka.ms/azsdk/go/identity/troubleshoot#%s", anchor)
+	}
+	return msg.String()
+}
+
+// NonRetriable indicates the request which provoked this error shouldn't be retried.
+func (*AuthenticationFailedError) NonRetriable() {
+	// marker method
+}
+
+var _ errorinfo.NonRetriable = (*AuthenticationFailedError)(nil)
+
+// credentialUnavailableError indicates a credential can't attempt
+// authentication because it lacks required data or state.
+type credentialUnavailableError struct {
+	credType string
+	message  string
+}
+
+func newCredentialUnavailableError(credType, message string) error {
+	return &credentialUnavailableError{credType: credType, message: message}
+}
+
+func (e *credentialUnavailableError) Error() string {
+	return e.credType + ": " + e.message
+}
+
+// NonRetriable indicates that this error should not be retried.
+func (e *credentialUnavailableError) NonRetriable() {
+	// marker method
+}
+
+var _ errorinfo.NonRetriable = (*credentialUnavailableError)(nil)

vendor/github.com/Azure/azure-sdk-for-go/sdk/azidentity/interactive_browser_credential.go

@@ -0,0 +1,85 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package azidentity
+
+import (
+	"context"
+	"errors"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+	"github.com/AzureAD/microsoft-authentication-library-for-go/apps/public"
+)
+
+const credNameBrowser = "InteractiveBrowserCredentiall"
+
+// InteractiveBrowserCredentialOptions contains optional parameters for InteractiveBrowserCredential.
+type InteractiveBrowserCredentialOptions struct {
+	azcore.ClientOptions
+
+	// TenantID is the Azure Active Directory tenant the credential authenticates in. Defaults to the
+	// "organizations" tenant, which can authenticate work and school accounts.
+	TenantID string
+	// ClientID is the ID of the application users will authenticate to.
+	// Defaults to the ID of an Azure development application.
+	ClientID string
+	// RedirectURL will be supported in a future version but presently doesn't work: https://github.com/Azure/azure-sdk-for-go/issues/15632.
+	// Applications which have "http://localhost" registered as a redirect URL need not set this option.
+	RedirectURL string
+}
+
+func (o *InteractiveBrowserCredentialOptions) init() {
+	if o.TenantID == "" {
+		o.TenantID = organizationsTenantID
+	}
+	if o.ClientID == "" {
+		o.ClientID = developerSignOnClientID
+	}
+}
+
+// InteractiveBrowserCredential opens a browser to interactively authenticate a user.
+type InteractiveBrowserCredential struct {
+	client  publicClient
+	options InteractiveBrowserCredentialOptions
+	account public.Account
+}
+
+// NewInteractiveBrowserCredential constructs a new InteractiveBrowserCredential. Pass nil to accept default options.
+func NewInteractiveBrowserCredential(options *InteractiveBrowserCredentialOptions) (*InteractiveBrowserCredential, error) {
+	cp := InteractiveBrowserCredentialOptions{}
+	if options != nil {
+		cp = *options
+	}
+	cp.init()
+	c, err := getPublicClient(cp.ClientID, cp.TenantID, &cp.ClientOptions)
+	if err != nil {
+		return nil, err
+	}
+	return &InteractiveBrowserCredential{options: cp, client: c}, nil
+}
+
+// GetToken requests an access token from Azure Active Directory. This method is called automatically by Azure SDK clients.
+func (c *InteractiveBrowserCredential) GetToken(ctx context.Context, opts policy.TokenRequestOptions) (azcore.AccessToken, error) {
+	if len(opts.Scopes) == 0 {
+		return azcore.AccessToken{}, errors.New(credNameBrowser + ": GetToken() requires at least one scope")
+	}
+	ar, err := c.client.AcquireTokenSilent(ctx, opts.Scopes, public.WithSilentAccount(c.account))
+	if err == nil {
+		logGetTokenSuccess(c, opts)
+		return azcore.AccessToken{Token: ar.AccessToken, ExpiresOn: ar.ExpiresOn.UTC()}, err
+	}
+
+	ar, err = c.client.AcquireTokenInteractive(ctx, opts.Scopes, public.WithRedirectURI(c.options.RedirectURL))
+	if err != nil {
+		return azcore.AccessToken{}, newAuthenticationFailedErrorFromMSALError(credNameBrowser, err)
+	}
+	c.account = ar.Account
+	logGetTokenSuccess(c, opts)
+	return azcore.AccessToken{Token: ar.AccessToken, ExpiresOn: ar.ExpiresOn.UTC()}, err
+}
+
+var _ azcore.TokenCredential = (*InteractiveBrowserCredential)(nil)

vendor/github.com/Azure/azure-sdk-for-go/sdk/azidentity/logging.go

@@ -0,0 +1,30 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package azidentity
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+	"github.com/Azure/azure-sdk-for-go/sdk/internal/log"
+)
+
+// EventAuthentication entries contain information about authentication.
+// This includes information like the names of environment variables
+// used when obtaining credentials and the type of credential used.
+const EventAuthentication log.Event = "Authentication"
+
+func logGetTokenSuccess(cred azcore.TokenCredential, opts policy.TokenRequestOptions) {
+	if !log.Should(EventAuthentication) {
+		return
+	}
+	scope := strings.Join(opts.Scopes, ", ")
+	msg := fmt.Sprintf("%T.GetToken() acquired a token for scope %s\n", cred, scope)
+	log.Write(EventAuthentication, msg)
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azidentity/managed_identity_client.go

@@ -0,0 +1,401 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package azidentity
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net/http"
+	"net/url"
+	"os"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/streaming"
+	"github.com/Azure/azure-sdk-for-go/sdk/internal/log"
+	"github.com/AzureAD/microsoft-authentication-library-for-go/apps/confidential"
+)
+
+const (
+	arcIMDSEndpoint          = "IMDS_ENDPOINT"
+	identityEndpoint         = "IDENTITY_ENDPOINT"
+	identityHeader           = "IDENTITY_HEADER"
+	identityServerThumbprint = "IDENTITY_SERVER_THUMBPRINT"
+	headerMetadata           = "Metadata"
+	imdsEndpoint             = "http://169.254.169.254/metadata/identity/oauth2/token"
+	msiEndpoint              = "MSI_ENDPOINT"
+	imdsAPIVersion           = "2018-02-01"
+	azureArcAPIVersion       = "2019-08-15"
+	serviceFabricAPIVersion  = "2019-07-01-preview"
+
+	qpClientID = "client_id"
+	qpResID    = "mi_res_id"
+)
+
+type msiType int
+
+const (
+	msiTypeAppService msiType = iota
+	msiTypeAzureArc
+	msiTypeCloudShell
+	msiTypeIMDS
+	msiTypeServiceFabric
+)
+
+// managedIdentityClient provides the base for authenticating in managed identity environments
+// This type includes an runtime.Pipeline and TokenCredentialOptions.
+type managedIdentityClient struct {
+	pipeline    runtime.Pipeline
+	msiType     msiType
+	endpoint    string
+	id          ManagedIDKind
+	imdsTimeout time.Duration
+}
+
+type wrappedNumber json.Number
+
+func (n *wrappedNumber) UnmarshalJSON(b []byte) error {
+	c := string(b)
+	if c == "\"\"" {
+		return nil
+	}
+	return json.Unmarshal(b, (*json.Number)(n))
+}
+
+// setIMDSRetryOptionDefaults sets zero-valued fields to default values appropriate for IMDS
+func setIMDSRetryOptionDefaults(o *policy.RetryOptions) {
+	if o.MaxRetries == 0 {
+		o.MaxRetries = 5
+	}
+	if o.MaxRetryDelay == 0 {
+		o.MaxRetryDelay = 1 * time.Minute
+	}
+	if o.RetryDelay == 0 {
+		o.RetryDelay = 2 * time.Second
+	}
+	if o.StatusCodes == nil {
+		o.StatusCodes = []int{
+			// IMDS docs recommend retrying 404, 429 and all 5xx
+			// https://docs.microsoft.com/azure/active-directory/managed-identities-azure-resources/how-to-use-vm-token#error-handling
+			http.StatusNotFound,                      // 404
+			http.StatusTooManyRequests,               // 429
+			http.StatusInternalServerError,           // 500
+			http.StatusNotImplemented,                // 501
+			http.StatusBadGateway,                    // 502
+			http.StatusGatewayTimeout,                // 504
+			http.StatusHTTPVersionNotSupported,       // 505
+			http.StatusVariantAlsoNegotiates,         // 506
+			http.StatusInsufficientStorage,           // 507
+			http.StatusLoopDetected,                  // 508
+			http.StatusNotExtended,                   // 510
+			http.StatusNetworkAuthenticationRequired, // 511
+		}
+	}
+	if o.TryTimeout == 0 {
+		o.TryTimeout = 1 * time.Minute
+	}
+}
+
+// newManagedIdentityClient creates a new instance of the ManagedIdentityClient with the ManagedIdentityCredentialOptions
+// that are passed into it along with a default pipeline.
+// options: ManagedIdentityCredentialOptions configure policies for the pipeline and the authority host that
+// will be used to retrieve tokens and authenticate
+func newManagedIdentityClient(options *ManagedIdentityCredentialOptions) (*managedIdentityClient, error) {
+	if options == nil {
+		options = &ManagedIdentityCredentialOptions{}
+	}
+	cp := options.ClientOptions
+	c := managedIdentityClient{id: options.ID, endpoint: imdsEndpoint, msiType: msiTypeIMDS}
+	env := "IMDS"
+	if endpoint, ok := os.LookupEnv(identityEndpoint); ok {
+		if _, ok := os.LookupEnv(identityHeader); ok {
+			if _, ok := os.LookupEnv(identityServerThumbprint); ok {
+				env = "Service Fabric"
+				c.endpoint = endpoint
+				c.msiType = msiTypeServiceFabric
+			} else {
+				env = "App Service"
+				c.endpoint = endpoint
+				c.msiType = msiTypeAppService
+			}
+		} else if _, ok := os.LookupEnv(arcIMDSEndpoint); ok {
+			env = "Azure Arc"
+			c.endpoint = endpoint
+			c.msiType = msiTypeAzureArc
+		}
+	} else if endpoint, ok := os.LookupEnv(msiEndpoint); ok {
+		env = "Cloud Shell"
+		c.endpoint = endpoint
+		c.msiType = msiTypeCloudShell
+	} else {
+		setIMDSRetryOptionDefaults(&cp.Retry)
+	}
+	c.pipeline = runtime.NewPipeline(component, version, runtime.PipelineOptions{}, &cp)
+
+	if log.Should(EventAuthentication) {
+		log.Writef(EventAuthentication, "Managed Identity Credential will use %s managed identity", env)
+	}
+
+	return &c, nil
+}
+
+// provideToken acquires a token for MSAL's confidential.Client, which caches the token
+func (c *managedIdentityClient) provideToken(ctx context.Context, params confidential.TokenProviderParameters) (confidential.TokenProviderResult, error) {
+	result := confidential.TokenProviderResult{}
+	tk, err := c.authenticate(ctx, c.id, params.Scopes)
+	if err == nil {
+		result.AccessToken = tk.Token
+		result.ExpiresInSeconds = int(time.Until(tk.ExpiresOn).Seconds())
+	}
+	return result, err
+}
+
+// authenticate acquires an access token
+func (c *managedIdentityClient) authenticate(ctx context.Context, id ManagedIDKind, scopes []string) (azcore.AccessToken, error) {
+	var cancel context.CancelFunc
+	if c.imdsTimeout > 0 && c.msiType == msiTypeIMDS {
+		ctx, cancel = context.WithTimeout(ctx, c.imdsTimeout)
+		defer cancel()
+	}
+
+	msg, err := c.createAuthRequest(ctx, id, scopes)
+	if err != nil {
+		return azcore.AccessToken{}, err
+	}
+
+	resp, err := c.pipeline.Do(msg)
+	if err != nil {
+		if cancel != nil && errors.Is(err, context.DeadlineExceeded) {
+			return azcore.AccessToken{}, newCredentialUnavailableError(credNameManagedIdentity, "IMDS token request timed out")
+		}
+		return azcore.AccessToken{}, newAuthenticationFailedError(credNameManagedIdentity, err.Error(), nil)
+	}
+
+	// got a response, remove the IMDS timeout so future requests use the transport's configuration
+	c.imdsTimeout = 0
+
+	if runtime.HasStatusCode(resp, http.StatusOK, http.StatusCreated) {
+		return c.createAccessToken(resp)
+	}
+
+	if c.msiType == msiTypeIMDS && resp.StatusCode == 400 {
+		if id != nil {
+			return azcore.AccessToken{}, newAuthenticationFailedError(credNameManagedIdentity, "the requested identity isn't assigned to this resource", resp)
+		}
+		return azcore.AccessToken{}, newCredentialUnavailableError(credNameManagedIdentity, "no default identity is assigned to this resource")
+	}
+
+	return azcore.AccessToken{}, newAuthenticationFailedError(credNameManagedIdentity, "authentication failed", resp)
+}
+
+func (c *managedIdentityClient) createAccessToken(res *http.Response) (azcore.AccessToken, error) {
+	value := struct {
+		// these are the only fields that we use
+		Token        string        `json:"access_token,omitempty"`
+		RefreshToken string        `json:"refresh_token,omitempty"`
+		ExpiresIn    wrappedNumber `json:"expires_in,omitempty"` // this field should always return the number of seconds for which a token is valid
+		ExpiresOn    interface{}   `json:"expires_on,omitempty"` // the value returned in this field varies between a number and a date string
+	}{}
+	if err := runtime.UnmarshalAsJSON(res, &value); err != nil {
+		return azcore.AccessToken{}, fmt.Errorf("internal AccessToken: %v", err)
+	}
+	if value.ExpiresIn != "" {
+		expiresIn, err := json.Number(value.ExpiresIn).Int64()
+		if err != nil {
+			return azcore.AccessToken{}, err
+		}
+		return azcore.AccessToken{Token: value.Token, ExpiresOn: time.Now().Add(time.Second * time.Duration(expiresIn)).UTC()}, nil
+	}
+	switch v := value.ExpiresOn.(type) {
+	case float64:
+		return azcore.AccessToken{Token: value.Token, ExpiresOn: time.Unix(int64(v), 0).UTC()}, nil
+	case string:
+		if expiresOn, err := strconv.Atoi(v); err == nil {
+			return azcore.AccessToken{Token: value.Token, ExpiresOn: time.Unix(int64(expiresOn), 0).UTC()}, nil
+		}
+		return azcore.AccessToken{}, newAuthenticationFailedError(credNameManagedIdentity, "unexpected expires_on value: "+v, res)
+	default:
+		msg := fmt.Sprintf("unsupported type received in expires_on: %T, %v", v, v)
+		return azcore.AccessToken{}, newAuthenticationFailedError(credNameManagedIdentity, msg, res)
+	}
+}
+
+func (c *managedIdentityClient) createAuthRequest(ctx context.Context, id ManagedIDKind, scopes []string) (*policy.Request, error) {
+	switch c.msiType {
+	case msiTypeIMDS:
+		return c.createIMDSAuthRequest(ctx, id, scopes)
+	case msiTypeAppService:
+		return c.createAppServiceAuthRequest(ctx, id, scopes)
+	case msiTypeAzureArc:
+		// need to perform preliminary request to retreive the secret key challenge provided by the HIMDS service
+		key, err := c.getAzureArcSecretKey(ctx, scopes)
+		if err != nil {
+			msg := fmt.Sprintf("failed to retreive secret key from the identity endpoint: %v", err)
+			return nil, newAuthenticationFailedError(credNameManagedIdentity, msg, nil)
+		}
+		return c.createAzureArcAuthRequest(ctx, id, scopes, key)
+	case msiTypeServiceFabric:
+		return c.createServiceFabricAuthRequest(ctx, id, scopes)
+	case msiTypeCloudShell:
+		return c.createCloudShellAuthRequest(ctx, id, scopes)
+	default:
+		return nil, newCredentialUnavailableError(credNameManagedIdentity, "managed identity isn't supported in this environment")
+	}
+}
+
+func (c *managedIdentityClient) createIMDSAuthRequest(ctx context.Context, id ManagedIDKind, scopes []string) (*policy.Request, error) {
+	request, err := runtime.NewRequest(ctx, http.MethodGet, c.endpoint)
+	if err != nil {
+		return nil, err
+	}
+	request.Raw().Header.Set(headerMetadata, "true")
+	q := request.Raw().URL.Query()
+	q.Add("api-version", imdsAPIVersion)
+	q.Add("resource", strings.Join(scopes, " "))
+	if id != nil {
+		if id.idKind() == miResourceID {
+			q.Add(qpResID, id.String())
+		} else {
+			q.Add(qpClientID, id.String())
+		}
+	}
+	request.Raw().URL.RawQuery = q.Encode()
+	return request, nil
+}
+
+func (c *managedIdentityClient) createAppServiceAuthRequest(ctx context.Context, id ManagedIDKind, scopes []string) (*policy.Request, error) {
+	request, err := runtime.NewRequest(ctx, http.MethodGet, c.endpoint)
+	if err != nil {
+		return nil, err
+	}
+	request.Raw().Header.Set("X-IDENTITY-HEADER", os.Getenv(identityHeader))
+	q := request.Raw().URL.Query()
+	q.Add("api-version", "2019-08-01")
+	q.Add("resource", scopes[0])
+	if id != nil {
+		if id.idKind() == miResourceID {
+			q.Add(qpResID, id.String())
+		} else {
+			q.Add(qpClientID, id.String())
+		}
+	}
+	request.Raw().URL.RawQuery = q.Encode()
+	return request, nil
+}
+
+func (c *managedIdentityClient) createServiceFabricAuthRequest(ctx context.Context, id ManagedIDKind, scopes []string) (*policy.Request, error) {
+	request, err := runtime.NewRequest(ctx, http.MethodGet, c.endpoint)
+	if err != nil {
+		return nil, err
+	}
+	q := request.Raw().URL.Query()
+	request.Raw().Header.Set("Accept", "application/json")
+	request.Raw().Header.Set("Secret", os.Getenv(identityHeader))
+	q.Add("api-version", serviceFabricAPIVersion)
+	q.Add("resource", strings.Join(scopes, " "))
+	if id != nil {
+		log.Write(EventAuthentication, "WARNING: Service Fabric doesn't support selecting a user-assigned identity at runtime")
+		if id.idKind() == miResourceID {
+			q.Add(qpResID, id.String())
+		} else {
+			q.Add(qpClientID, id.String())
+		}
+	}
+	request.Raw().URL.RawQuery = q.Encode()
+	return request, nil
+}
+
+func (c *managedIdentityClient) getAzureArcSecretKey(ctx context.Context, resources []string) (string, error) {
+	// create the request to retreive the secret key challenge provided by the HIMDS service
+	request, err := runtime.NewRequest(ctx, http.MethodGet, c.endpoint)
+	if err != nil {
+		return "", err
+	}
+	request.Raw().Header.Set(headerMetadata, "true")
+	q := request.Raw().URL.Query()
+	q.Add("api-version", azureArcAPIVersion)
+	q.Add("resource", strings.Join(resources, " "))
+	request.Raw().URL.RawQuery = q.Encode()
+	// send the initial request to get the short-lived secret key
+	response, err := c.pipeline.Do(request)
+	if err != nil {
+		return "", err
+	}
+	// the endpoint is expected to return a 401 with the WWW-Authenticate header set to the location
+	// of the secret key file. Any other status code indicates an error in the request.
+	if response.StatusCode != 401 {
+		msg := fmt.Sprintf("expected a 401 response, received %d", response.StatusCode)
+		return "", newAuthenticationFailedError(credNameManagedIdentity, msg, response)
+	}
+	header := response.Header.Get("WWW-Authenticate")
+	if len(header) == 0 {
+		return "", errors.New("did not receive a value from WWW-Authenticate header")
+	}
+	// the WWW-Authenticate header is expected in the following format: Basic realm=/some/file/path.key
+	pos := strings.LastIndex(header, "=")
+	if pos == -1 {
+		return "", fmt.Errorf("did not receive a correct value from WWW-Authenticate header: %s", header)
+	}
+	key, err := os.ReadFile(header[pos+1:])
+	if err != nil {
+		return "", fmt.Errorf("could not read file (%s) contents: %v", header[pos+1:], err)
+	}
+	return string(key), nil
+}
+
+func (c *managedIdentityClient) createAzureArcAuthRequest(ctx context.Context, id ManagedIDKind, resources []string, key string) (*policy.Request, error) {
+	request, err := runtime.NewRequest(ctx, http.MethodGet, c.endpoint)
+	if err != nil {
+		return nil, err
+	}
+	request.Raw().Header.Set(headerMetadata, "true")
+	request.Raw().Header.Set("Authorization", fmt.Sprintf("Basic %s", key))
+	q := request.Raw().URL.Query()
+	q.Add("api-version", azureArcAPIVersion)
+	q.Add("resource", strings.Join(resources, " "))
+	if id != nil {
+		log.Write(EventAuthentication, "WARNING: Azure Arc doesn't support user-assigned managed identities")
+		if id.idKind() == miResourceID {
+			q.Add(qpResID, id.String())
+		} else {
+			q.Add(qpClientID, id.String())
+		}
+	}
+	request.Raw().URL.RawQuery = q.Encode()
+	return request, nil
+}
+
+func (c *managedIdentityClient) createCloudShellAuthRequest(ctx context.Context, id ManagedIDKind, scopes []string) (*policy.Request, error) {
+	request, err := runtime.NewRequest(ctx, http.MethodPost, c.endpoint)
+	if err != nil {
+		return nil, err
+	}
+	request.Raw().Header.Set(headerMetadata, "true")
+	data := url.Values{}
+	data.Set("resource", strings.Join(scopes, " "))
+	dataEncoded := data.Encode()
+	body := streaming.NopCloser(strings.NewReader(dataEncoded))
+	if err := request.SetBody(body, "application/x-www-form-urlencoded"); err != nil {
+		return nil, err
+	}
+	if id != nil {
+		log.Write(EventAuthentication, "WARNING: Cloud Shell doesn't support user-assigned managed identities")
+		q := request.Raw().URL.Query()
+		if id.idKind() == miResourceID {
+			q.Add(qpResID, id.String())
+		} else {
+			q.Add(qpClientID, id.String())
+		}
+	}
+	return request, nil
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/azidentity/managed_identity_credential.go

@@ -0,0 +1,125 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package azidentity
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"strings"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+	"github.com/AzureAD/microsoft-authentication-library-for-go/apps/confidential"
+)
+
+const credNameManagedIdentity = "ManagedIdentityCredential"
+
+type managedIdentityIDKind int
+
+const (
+	miClientID   managedIdentityIDKind = 0
+	miResourceID managedIdentityIDKind = 1
+)
+
+// ManagedIDKind identifies the ID of a managed identity as either a client or resource ID
+type ManagedIDKind interface {
+	fmt.Stringer
+	idKind() managedIdentityIDKind
+}
+
+// ClientID is the client ID of a user-assigned managed identity.
+type ClientID string
+
+func (ClientID) idKind() managedIdentityIDKind {
+	return miClientID
+}
+
+// String returns the string value of the ID.
+func (c ClientID) String() string {
+	return string(c)
+}
+
+// ResourceID is the resource ID of a user-assigned managed identity.
+type ResourceID string
+
+func (ResourceID) idKind() managedIdentityIDKind {
+	return miResourceID
+}
+
+// String returns the string value of the ID.
+func (r ResourceID) String() string {
+	return string(r)
+}
+
+// ManagedIdentityCredentialOptions contains optional parameters for ManagedIdentityCredential.
+type ManagedIdentityCredentialOptions struct {
+	azcore.ClientOptions
+
+	// ID is the ID of a managed identity the credential should authenticate. Set this field to use a specific identity
+	// instead of the hosting environment's default. The value may be the identity's client ID or resource ID, but note that
+	// some platforms don't accept resource IDs.
+	ID ManagedIDKind
+}
+
+// ManagedIdentityCredential authenticates an Azure managed identity in any hosting environment supporting managed identities.
+// This credential authenticates a system-assigned identity by default. Use ManagedIdentityCredentialOptions.ID to specify a
+// user-assigned identity. See Azure Active Directory documentation for more information about managed identities:
+// https://docs.microsoft.com/azure/active-directory/managed-identities-azure-resources/overview
+type ManagedIdentityCredential struct {
+	client confidentialClient
+	mic    *managedIdentityClient
+}
+
+// NewManagedIdentityCredential creates a ManagedIdentityCredential. Pass nil to accept default options.
+func NewManagedIdentityCredential(options *ManagedIdentityCredentialOptions) (*ManagedIdentityCredential, error) {
+	if options == nil {
+		options = &ManagedIdentityCredentialOptions{}
+	}
+	mic, err := newManagedIdentityClient(options)
+	if err != nil {
+		return nil, err
+	}
+	cred := confidential.NewCredFromTokenProvider(mic.provideToken)
+	if err != nil {
+		return nil, err
+	}
+	// It's okay to give MSAL an invalid client ID because MSAL will use it only as part of a cache key.
+	// ManagedIdentityClient handles all the details of authentication and won't receive this value from MSAL.
+	clientID := "SYSTEM-ASSIGNED-MANAGED-IDENTITY"
+	if options.ID != nil {
+		clientID = options.ID.String()
+	}
+	c, err := confidential.New(clientID, cred)
+	if err != nil {
+		return nil, err
+	}
+	return &ManagedIdentityCredential{client: c, mic: mic}, nil
+}
+
+// GetToken requests an access token from the hosting environment. This method is called automatically by Azure SDK clients.
+func (c *ManagedIdentityCredential) GetToken(ctx context.Context, opts policy.TokenRequestOptions) (azcore.AccessToken, error) {
+	if len(opts.Scopes) != 1 {
+		err := errors.New(credNameManagedIdentity + ": GetToken() requires exactly one scope")
+		return azcore.AccessToken{}, err
+	}
+	// managed identity endpoints require an AADv1 resource (i.e. token audience), not a v2 scope, so we remove "/.default" here
+	scopes := []string{strings.TrimSuffix(opts.Scopes[0], defaultSuffix)}
+	ar, err := c.client.AcquireTokenSilent(ctx, scopes)
+	if err == nil {
+		logGetTokenSuccess(c, opts)
+		return azcore.AccessToken{Token: ar.AccessToken, ExpiresOn: ar.ExpiresOn.UTC()}, nil
+	}
+	ar, err = c.client.AcquireTokenByCredential(ctx, scopes)
+	if err != nil {
+		return azcore.AccessToken{}, err
+	}
+	logGetTokenSuccess(c, opts)
+	return azcore.AccessToken{Token: ar.AccessToken, ExpiresOn: ar.ExpiresOn.UTC()}, err
+}
+
+var _ azcore.TokenCredential = (*ManagedIdentityCredential)(nil)

vendor/github.com/Azure/azure-sdk-for-go/sdk/azidentity/username_password_credential.go

@@ -0,0 +1,68 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package azidentity
+
+import (
+	"context"
+	"errors"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
+	"github.com/AzureAD/microsoft-authentication-library-for-go/apps/public"
+)
+
+const credNameUserPassword = "UsernamePasswordCredential"
+
+// UsernamePasswordCredentialOptions contains optional parameters for UsernamePasswordCredential.
+type UsernamePasswordCredentialOptions struct {
+	azcore.ClientOptions
+}
+
+// UsernamePasswordCredential authenticates a user with a password. Microsoft doesn't recommend this kind of authentication,
+// because it's less secure than other authentication flows. This credential is not interactive, so it isn't compatible
+// with any form of multi-factor authentication, and the application must already have user or admin consent.
+// This credential can only authenticate work and school accounts; it can't authenticate Microsoft accounts.
+type UsernamePasswordCredential struct {
+	client   publicClient
+	username string
+	password string
+	account  public.Account
+}
+
+// NewUsernamePasswordCredential creates a UsernamePasswordCredential. clientID is the ID of the application the user
+// will authenticate to. Pass nil for options to accept defaults.
+func NewUsernamePasswordCredential(tenantID string, clientID string, username string, password string, options *UsernamePasswordCredentialOptions) (*UsernamePasswordCredential, error) {
+	if options == nil {
+		options = &UsernamePasswordCredentialOptions{}
+	}
+	c, err := getPublicClient(clientID, tenantID, &options.ClientOptions)
+	if err != nil {
+		return nil, err
+	}
+	return &UsernamePasswordCredential{username: username, password: password, client: c}, nil
+}
+
+// GetToken requests an access token from Azure Active Directory. This method is called automatically by Azure SDK clients.
+func (c *UsernamePasswordCredential) GetToken(ctx context.Context, opts policy.TokenRequestOptions) (azcore.AccessToken, error) {
+	if len(opts.Scopes) == 0 {
+		return azcore.AccessToken{}, errors.New(credNameUserPassword + ": GetToken() requires at least one scope")
+	}
+	ar, err := c.client.AcquireTokenSilent(ctx, opts.Scopes, public.WithSilentAccount(c.account))
+	if err == nil {
+		logGetTokenSuccess(c, opts)
+		return azcore.AccessToken{Token: ar.AccessToken, ExpiresOn: ar.ExpiresOn.UTC()}, err
+	}
+	ar, err = c.client.AcquireTokenByUsernamePassword(ctx, opts.Scopes, c.username, c.password)
+	if err != nil {
+		return azcore.AccessToken{}, newAuthenticationFailedErrorFromMSALError(credNameUserPassword, err)
+	}
+	c.account = ar.Account
+	logGetTokenSuccess(c, opts)
+	return azcore.AccessToken{Token: ar.AccessToken, ExpiresOn: ar.ExpiresOn.UTC()}, err
+}
+
+var _ azcore.TokenCredential = (*UsernamePasswordCredential)(nil)

vendor/github.com/Azure/azure-sdk-for-go/sdk/azidentity/version.go

@@ -0,0 +1,15 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package azidentity
+
+const (
+	// UserAgent is the string to be used in the user agent string when making requests.
+	component = "azidentity"
+
+	// Version is the semantic version (see http://semver.org) of this module.
+	version = "v1.2.1"
+)

vendor/github.com/Azure/azure-sdk-for-go/sdk/internal/LICENSE.txt

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) Microsoft Corporation.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE

vendor/github.com/Azure/azure-sdk-for-go/sdk/internal/diag/diag.go

@@ -0,0 +1,51 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package diag
+
+import (
+	"fmt"
+	"runtime"
+	"strings"
+)
+
+// Caller returns the file and line number of a frame on the caller's stack.
+// If the funtion fails an empty string is returned.
+// skipFrames - the number of frames to skip when determining the caller.
+// Passing a value of 0 will return the immediate caller of this function.
+func Caller(skipFrames int) string {
+	if pc, file, line, ok := runtime.Caller(skipFrames + 1); ok {
+		// the skipFrames + 1 is to skip ourselves
+		frame := runtime.FuncForPC(pc)
+		return fmt.Sprintf("%s()\n\t%s:%d", frame.Name(), file, line)
+	}
+	return ""
+}
+
+// StackTrace returns a formatted stack trace string.
+// If the funtion fails an empty string is returned.
+// skipFrames - the number of stack frames to skip before composing the trace string.
+// totalFrames - the maximum number of stack frames to include in the trace string.
+func StackTrace(skipFrames, totalFrames int) string {
+	pcCallers := make([]uintptr, totalFrames)
+	if frames := runtime.Callers(skipFrames, pcCallers); frames == 0 {
+		return ""
+	}
+	frames := runtime.CallersFrames(pcCallers)
+	sb := strings.Builder{}
+	for {
+		frame, more := frames.Next()
+		sb.WriteString(frame.Function)
+		sb.WriteString("()\n\t")
+		sb.WriteString(frame.File)
+		sb.WriteRune(':')
+		sb.WriteString(fmt.Sprintf("%d\n", frame.Line))
+		if !more {
+			break
+		}
+	}
+	return sb.String()
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/internal/diag/doc.go

@@ -0,0 +1,7 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package diag

vendor/github.com/Azure/azure-sdk-for-go/sdk/internal/errorinfo/doc.go

@@ -0,0 +1,7 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package errorinfo

vendor/github.com/Azure/azure-sdk-for-go/sdk/internal/errorinfo/errorinfo.go

@@ -0,0 +1,16 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package errorinfo
+
+// NonRetriable represents a non-transient error.  This works in
+// conjunction with the retry policy, indicating that the error condition
+// is idempotent, so no retries will be attempted.
+// Use errors.As() to access this interface in the error chain.
+type NonRetriable interface {
+	error
+	NonRetriable()
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/internal/log/doc.go

@@ -0,0 +1,7 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package log

vendor/github.com/Azure/azure-sdk-for-go/sdk/internal/log/log.go

@@ -0,0 +1,104 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package log
+
+import (
+	"fmt"
+	"os"
+	"time"
+)
+
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// NOTE: The following are exported as public surface area from azcore.  DO NOT MODIFY
+///////////////////////////////////////////////////////////////////////////////////////////////////
+
+// Event is used to group entries.  Each group can be toggled on or off.
+type Event string
+
+// SetEvents is used to control which events are written to
+// the log.  By default all log events are writen.
+func SetEvents(cls ...Event) {
+	log.cls = cls
+}
+
+// SetListener will set the Logger to write to the specified listener.
+func SetListener(lst func(Event, string)) {
+	log.lst = lst
+}
+
+///////////////////////////////////////////////////////////////////////////////////////////////////
+// END PUBLIC SURFACE AREA
+///////////////////////////////////////////////////////////////////////////////////////////////////
+
+// Should returns true if the specified log event should be written to the log.
+// By default all log events will be logged.  Call SetEvents() to limit
+// the log events for logging.
+// If no listener has been set this will return false.
+// Calling this method is useful when the message to log is computationally expensive
+// and you want to avoid the overhead if its log event is not enabled.
+func Should(cls Event) bool {
+	if log.lst == nil {
+		return false
+	}
+	if log.cls == nil || len(log.cls) == 0 {
+		return true
+	}
+	for _, c := range log.cls {
+		if c == cls {
+			return true
+		}
+	}
+	return false
+}
+
+// Write invokes the underlying listener with the specified event and message.
+// If the event shouldn't be logged or there is no listener then Write does nothing.
+func Write(cls Event, message string) {
+	if !Should(cls) {
+		return
+	}
+	log.lst(cls, message)
+}
+
+// Writef invokes the underlying listener with the specified event and formatted message.
+// If the event shouldn't be logged or there is no listener then Writef does nothing.
+func Writef(cls Event, format string, a ...interface{}) {
+	if !Should(cls) {
+		return
+	}
+	log.lst(cls, fmt.Sprintf(format, a...))
+}
+
+// TestResetEvents is used for TESTING PURPOSES ONLY.
+func TestResetEvents() {
+	log.cls = nil
+}
+
+// logger controls which events to log and writing to the underlying log.
+type logger struct {
+	cls []Event
+	lst func(Event, string)
+}
+
+// the process-wide logger
+var log logger
+
+func init() {
+	initLogging()
+}
+
+// split out for testing purposes
+func initLogging() {
+	if cls := os.Getenv("AZURE_SDK_GO_LOGGING"); cls == "all" {
+		// cls could be enhanced to support a comma-delimited list of log events
+		log.lst = func(cls Event, msg string) {
+			// simple console logger, it writes to stderr in the following format:
+			// [time-stamp] Event: message
+			fmt.Fprintf(os.Stderr, "[%s] %s: %s\n", time.Now().Format(time.StampMicro), cls, msg)
+		}
+	}
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/internal/temporal/resource.go

@@ -0,0 +1,123 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package temporal
+
+import (
+	"sync"
+	"time"
+)
+
+// AcquireResource abstracts a method for refreshing a temporal resource.
+type AcquireResource[TResource, TState any] func(state TState) (newResource TResource, newExpiration time.Time, err error)
+
+// Resource is a temporal resource (usually a credential) that requires periodic refreshing.
+type Resource[TResource, TState any] struct {
+	// cond is used to synchronize access to the shared resource embodied by the remaining fields
+	cond *sync.Cond
+
+	// acquiring indicates that some thread/goroutine is in the process of acquiring/updating the resource
+	acquiring bool
+
+	// resource contains the value of the shared resource
+	resource TResource
+
+	// expiration indicates when the shared resource expires; it is 0 if the resource was never acquired
+	expiration time.Time
+
+	// lastAttempt indicates when a thread/goroutine last attempted to acquire/update the resource
+	lastAttempt time.Time
+
+	// acquireResource is the callback function that actually acquires the resource
+	acquireResource AcquireResource[TResource, TState]
+}
+
+// NewResource creates a new Resource that uses the specified AcquireResource for refreshing.
+func NewResource[TResource, TState any](ar AcquireResource[TResource, TState]) *Resource[TResource, TState] {
+	return &Resource[TResource, TState]{cond: sync.NewCond(&sync.Mutex{}), acquireResource: ar}
+}
+
+// Get returns the underlying resource.
+// If the resource is fresh, no refresh is performed.
+func (er *Resource[TResource, TState]) Get(state TState) (TResource, error) {
+	// If the resource is expiring within this time window, update it eagerly.
+	// This allows other threads/goroutines to keep running by using the not-yet-expired
+	// resource value while one thread/goroutine updates the resource.
+	const window = 5 * time.Minute   // This example updates the resource 5 minutes prior to expiration
+	const backoff = 30 * time.Second // Minimum wait time between eager update attempts
+
+	now, acquire, expired := time.Now(), false, false
+
+	// acquire exclusive lock
+	er.cond.L.Lock()
+	resource := er.resource
+
+	for {
+		expired = er.expiration.IsZero() || er.expiration.Before(now)
+		if expired {
+			// The resource was never acquired or has expired
+			if !er.acquiring {
+				// If another thread/goroutine is not acquiring/updating the resource, this thread/goroutine will do it
+				er.acquiring, acquire = true, true
+				break
+			}
+			// Getting here means that this thread/goroutine will wait for the updated resource
+		} else if er.expiration.Add(-window).Before(now) {
+			// The resource is valid but is expiring within the time window
+			if !er.acquiring && er.lastAttempt.Add(backoff).Before(now) {
+				// If another thread/goroutine is not acquiring/renewing the resource, and none has attempted
+				// to do so within the last 30 seconds, this thread/goroutine will do it
+				er.acquiring, acquire = true, true
+				break
+			}
+			// This thread/goroutine will use the existing resource value while another updates it
+			resource = er.resource
+			break
+		} else {
+			// The resource is not close to expiring, this thread/goroutine should use its current value
+			resource = er.resource
+			break
+		}
+		// If we get here, wait for the new resource value to be acquired/updated
+		er.cond.Wait()
+	}
+	er.cond.L.Unlock() // Release the lock so no threads/goroutines are blocked
+
+	var err error
+	if acquire {
+		// This thread/goroutine has been selected to acquire/update the resource
+		var expiration time.Time
+		var newValue TResource
+		er.lastAttempt = now
+		newValue, expiration, err = er.acquireResource(state)
+
+		// Atomically, update the shared resource's new value & expiration.
+		er.cond.L.Lock()
+		if err == nil {
+			// Update resource & expiration, return the new value
+			resource = newValue
+			er.resource, er.expiration = resource, expiration
+		} else if !expired {
+			// An eager update failed. Discard the error and return the current--still valid--resource value
+			err = nil
+		}
+		er.acquiring = false // Indicate that no thread/goroutine is currently acquiring the resource
+
+		// Wake up any waiting threads/goroutines since there is a resource they can ALL use
+		er.cond.L.Unlock()
+		er.cond.Broadcast()
+	}
+	return resource, err // Return the resource this thread/goroutine can use
+}
+
+// Expire marks the resource as expired, ensuring it's refreshed on the next call to Get().
+func (er *Resource[TResource, TState]) Expire() {
+	er.cond.L.Lock()
+	defer er.cond.L.Unlock()
+
+	// Reset the expiration as if we never got this resource to begin with
+	er.expiration = time.Time{}
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/internal/uuid/doc.go

@@ -0,0 +1,7 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package uuid

vendor/github.com/Azure/azure-sdk-for-go/sdk/internal/uuid/uuid.go

@@ -0,0 +1,76 @@
+//go:build go1.18
+// +build go1.18
+
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package uuid
+
+import (
+	"crypto/rand"
+	"errors"
+	"fmt"
+	"strconv"
+)
+
+// The UUID reserved variants.
+const (
+	reservedRFC4122 byte = 0x40
+)
+
+// A UUID representation compliant with specification in RFC4122 document.
+type UUID [16]byte
+
+// New returns a new UUID using the RFC4122 algorithm.
+func New() (UUID, error) {
+	u := UUID{}
+	// Set all bits to pseudo-random values.
+	// NOTE: this takes a process-wide lock
+	_, err := rand.Read(u[:])
+	if err != nil {
+		return u, err
+	}
+	u[8] = (u[8] | reservedRFC4122) & 0x7F // u.setVariant(ReservedRFC4122)
+
+	var version byte = 4
+	u[6] = (u[6] & 0xF) | (version << 4) // u.setVersion(4)
+	return u, nil
+}
+
+// String returns the UUID in "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" format.
+func (u UUID) String() string {
+	return fmt.Sprintf("%x-%x-%x-%x-%x", u[0:4], u[4:6], u[6:8], u[8:10], u[10:])
+}
+
+// Parse parses a string formatted as "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
+// or "{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}" into a UUID.
+func Parse(s string) (UUID, error) {
+	var uuid UUID
+	// ensure format
+	switch len(s) {
+	case 36:
+		// xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
+	case 38:
+		// {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}
+		s = s[1:37]
+	default:
+		return uuid, errors.New("invalid UUID format")
+	}
+	if s[8] != '-' || s[13] != '-' || s[18] != '-' || s[23] != '-' {
+		return uuid, errors.New("invalid UUID format")
+	}
+	// parse chunks
+	for i, x := range [16]int{
+		0, 2, 4, 6,
+		9, 11,
+		14, 16,
+		19, 21,
+		24, 26, 28, 30, 32, 34} {
+		b, err := strconv.ParseUint(s[x:x+2], 16, 8)
+		if err != nil {
+			return uuid, fmt.Errorf("invalid UUID format: %s", err)
+		}
+		uuid[i] = byte(b)
+	}
+	return uuid, nil
+}

vendor/github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/CHANGELOG.md

@@ -0,0 +1,167 @@
+# Release History
+
+## 1.0.0 (2023-02-07)
+
+### Features Added
+
+* Add support to log calculated block size and count during uploads
+* Added MissingSharedKeyCredential error type for cleaner UX. Related to [#19864](https://github.com/Azure/azure-sdk-for-go/issues/19864).
+
+### Breaking Changes
+
+* Changed API signatures to map correctly to Azure Storage REST APIs, These changes impact:
+  * `blob.GetSASURL()`
+  * `blockblob.StageBlockFromURL()`
+  * `container.SetAccessPolicy()`
+  * `container.GetSASURL()`
+  * `service.GetSASURL()`
+  * `service.FilterBlobs()`
+  * `lease.AcquireLease()` (blobs and containers)
+  * `lease.ChangeLease()` (blobs and containers)
+* Type name changes:
+  * `CpkInfo` -> `CPKInfo`
+  * `CpkScopeInfo` -> `CPKScopeInfo`
+  * `RuleId` -> `RuleID`
+  * `PolicyId` -> `PolicyID`
+  * `CorsRule` -> `CORSRule`
+* Remove `AccountServices` it is now hardcoded to blobs
+
+### Bugs Fixed
+
+* Fixed encoding issues seen in FilterBlobs. Fixes [#17421](https://github.com/Azure/azure-sdk-for-go/issues/17421).
+* Fixing inconsistency seen with Metadata and ORS response. Fixes [#19688](https://github.com/Azure/azure-sdk-for-go/issues/19688).
+* Fixed endless loop during pagination issue [#19773](https://github.com/Azure/azure-sdk-for-go/pull/19773).
+
+### Other Changes
+
+* Exported some missing types in the `blob`, `container` and `service` packages. Fixes [#19775](https://github.com/Azure/azure-sdk-for-go/issues/19775).
+* SAS changes [#19781](https://github.com/Azure/azure-sdk-for-go/pull/19781):
+  * AccountSASPermissions: SetImmutabilityPolicy support
+  * ContainerSASPermissions: Move support
+  * Validations to ensure correct sas perm ordering
+
+## 0.6.1 (2022-12-09)
+
+### Bugs Fixed
+
+* Fix compilation error on Darwin.
+
+## 0.6.0 (2022-12-08)
+
+### Features Added
+
+* Added BlobDeleteType to DeleteOptions to allow access to ['Permanent'](https://learn.microsoft.com/rest/api/storageservices/delete-blob#permanent-delete) DeleteType.
+* Added [Set Blob Expiry API](https://learn.microsoft.com/rest/api/storageservices/set-blob-expiry).
+* Added method `ServiceClient()` to the `azblob.Client` type, allowing access to the underlying service client.
+* Added support for object level immutability policy with versioning (Version Level WORM).
+* Added the custom CRC64 polynomial used by storage for transactional hashes, and implemented automatic hashing for transactions.
+
+### Breaking Changes
+
+* Corrected the name for `saoid` and `suoid` SAS parameters in `BlobSignatureValues` struct as per [this](https://learn.microsoft.com/rest/api/storageservices/create-user-delegation-sas#construct-a-user-delegation-sas)
+* Updated type of `BlockSize` from int to int64 in `UploadStreamOptions`
+* CRC64 transactional hashes are now supplied with a `uint64` rather than a `[]byte` to conform with Golang's `hash/crc64` package
+* Field `XMSContentCRC64` has been renamed to `ContentCRC64`
+* The `Lease*` constant types and values in the `blob` and `container` packages have been moved to the `lease` package and their names fixed up to avoid stuttering.
+* Fields `TransactionalContentCRC64` and `TransactionalContentMD5` have been replaced by `TransactionalValidation`.
+* Fields `SourceContentCRC64` and `SourceContentMD5` have been replaced by `SourceContentValidation`.
+* Field `TransactionalContentMD5` has been removed from type `AppendBlockFromURLOptions`.
+
+### Bugs Fixed
+
+* Corrected signing of User Delegation SAS. Fixes [#19372](https://github.com/Azure/azure-sdk-for-go/issues/19372) and [#19454](https://github.com/Azure/azure-sdk-for-go/issues/19454)
+* Added formatting of start and expiry time in [SetAccessPolicy](https://learn.microsoft.com/rest/api/storageservices/set-container-acl#request-body). Fixes [#18712](https://github.com/Azure/azure-sdk-for-go/issues/18712)
+* Uploading block blobs larger than 256MB can fail in some cases with error `net/http: HTTP/1.x transport connection broken`.
+* Blob name parameters are URL-encoded before constructing the complete blob URL.
+
+### Other Changes
+
+* Added some missing public surface area in the `container` and `service` packages.
+* The `UploadStream()` methods now use anonymous memory mapped files for buffers in order to reduce heap allocations/fragmentation.
+  * The anonymous memory mapped files are typically backed by the page/swap file, multiple files are not actually created.
+
+## 0.5.1 (2022-10-11)
+
+### Bugs Fixed
+
+* `GetSASURL()`: for container and blob clients, don't add a forward slash before the query string
+* Fixed issue [#19249](https://github.com/Azure/azure-sdk-for-go/issues/19249) by increasing service version to '2020-02-10'.
+
+### Other Changes
+
+* Improved docs for client constructors.
+* Updating azcore version to 1.1.4
+
+## 0.5.0 (2022-09-29)
+
+### Breaking Changes
+
+* Complete architectural change for better user experience. Please view the [README](https://github.com/Azure/azure-sdk-for-go/tree/main/sdk/storage/azblob#readme)
+
+### Features Added
+
+* Added [UserDelegationCredential](https://learn.microsoft.com/rest/api/storageservices/create-user-delegation-sas) which resolves [#18976](https://github.com/Azure/azure-sdk-for-go/issues/18976), [#16916](https://github.com/Azure/azure-sdk-for-go/issues/16916), [#18977](https://github.com/Azure/azure-sdk-for-go/issues/18977)
+* Added [Restore Container API](https://learn.microsoft.com/rest/api/storageservices/restore-container).
+
+### Bugs Fixed
+
+* Fixed issue [#18767](https://github.com/Azure/azure-sdk-for-go/issues/18767)
+* Fix deadlock when error writes are slow [#16937](https://github.com/Azure/azure-sdk-for-go/pull/16937)
+
+## 0.4.1 (2022-05-12)
+
+### Other Changes
+
+* Updated to latest `azcore` and `internal` modules
+
+## 0.4.0 (2022-04-19)
+
+### Breaking Changes
+
+* Fixed Issue #17150 : Renaming/refactoring high level methods.
+* Fixed Issue #16972 : Constructors should return clients by reference.
+* Renaming the options bags to match the naming convention same as that of response. The behaviour of options bags
+  remains the same.
+
+### Bugs Fixed
+
+* Fixed Issue #17515 : SetTags options bag missing leaseID.
+* Fixed Issue #17423 : Drop "Type" suffix from `GeoReplicationStatusType`.
+* Fixed Issue #17335 : Nil pointer exception when passing nil options bag in `ListBlobsFlat` API call.
+* Fixed Issue #17188 : `BlobURLParts` not supporting VersionID
+* Fixed Issue #17152 , Issue #17131 , Issue #17061 : `UploadStreamToBlockBlob` / `UploadStreamToBlockBlob` methods
+  ignoring the options bag.
+* Fixed Issue #16920 : Fixing error handling example.
+* Fixed Issue #16786 : Refactoring of autorest code generation definition and adding necessary transformations.
+* Fixed Issue #16679 : Response parsing issue in List blobs API.
+
+## 0.3.0 (2022-02-09)
+
+### Breaking Changes
+
+* Updated to latest `azcore`. Public surface area is unchanged.
+* [#16978](https://github.com/Azure/azure-sdk-for-go/pull/16978): The `DownloadResponse.Body` parameter is
+  now `*RetryReaderOptions`.
+
+### Bugs Fixed
+
+* Fixed Issue #16193 : `azblob.GetSASToken` wrong signed resource.
+* Fixed Issue #16223 : `HttpRange` does not expose its fields.
+* Fixed Issue #16254 : Issue passing reader to upload `BlockBlobClient`
+* Fixed Issue #16295 : Problem with listing blobs by using of `ListBlobsHierarchy()`
+* Fixed Issue #16542 : Empty `StorageError` in the Azurite environment
+* Fixed Issue #16679 : Unable to access Metadata when listing blobs
+* Fixed Issue #16816 : `ContainerClient.GetSASToken` doesn't allow list permission.
+* Fixed Issue #16988 : Too many arguments in call to `runtime.NewResponseError`
+
+## 0.2.0 (2021-11-03)
+
+### Breaking Changes
+
+* Clients now have one constructor per authentication method
+
+## 0.1.0 (2021-09-13)
+
+### Features Added
+
+* This is the initial preview release of the `azblob` library

vendor/github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/LICENSE.txt

@@ -0,0 +1,21 @@
+    MIT License
+
+    Copyright (c) Microsoft Corporation. All rights reserved.
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in all
+    copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+    SOFTWARE

vendor/github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/README.md

@@ -0,0 +1,274 @@
+# Azure Blob Storage SDK for Go
+
+> Server Version: 2020-10-02
+
+Azure Blob storage is Microsoft's object storage solution for the cloud. Blob
+storage is optimized for storing massive amounts of unstructured data.
+Unstructured data is data that does not adhere to a particular data model or
+definition, such as text or binary data.
+
+[Source code][source] | [API reference documentation][docs] | [REST API documentation][rest_docs] | [Product documentation][product_docs]
+
+## Getting started
+
+### Install the package
+
+Install the Azure Blob Storage SDK for Go with [go get][goget]:
+
+```Powershell
+go get github.com/Azure/azure-sdk-for-go/sdk/storage/azblob
+```
+
+If you're going to authenticate with Azure Active Directory (recommended), install the [azidentity][azidentity] module.
+```Powershell
+go get github.com/Azure/azure-sdk-for-go/sdk/azidentity
+```
+
+### Prerequisites
+
+A supported [Go][godevdl] version (the Azure SDK supports the two most recent Go releases).
+
+You need an [Azure subscription][azure_sub] and a
+[Storage Account][storage_account_docs] to use this package.
+
+To create a new Storage Account, you can use the [Azure Portal][storage_account_create_portal],
+[Azure PowerShell][storage_account_create_ps], or the [Azure CLI][storage_account_create_cli].
+Here's an example using the Azure CLI:
+
+```Powershell
+az storage account create --name MyStorageAccount --resource-group MyResourceGroup --location westus --sku Standard_LRS
+```
+
+### Authenticate the client
+
+In order to interact with the Azure Blob Storage service, you'll need to create an instance of the `azblob.Client` type.  The [azidentity][azidentity] module makes it easy to add Azure Active Directory support for authenticating Azure SDK clients with their corresponding Azure services.
+
+```go
+// create a credential for authenticating with Azure Active Directory
+cred, err := azidentity.NewDefaultAzureCredential(nil)
+// TODO: handle err
+
+// create an azblob.Client for the specified storage account that uses the above credential
+client, err := azblob.NewClient("https://MYSTORAGEACCOUNT.blob.core.windows.net/", cred, nil)
+// TODO: handle err
+```
+
+Learn more about enabling Azure Active Directory for authentication with Azure Storage in [our documentation][storage_ad] and [our samples](#next-steps).
+
+## Key concepts
+
+Blob storage is designed for:
+
+- Serving images or documents directly to a browser.
+- Storing files for distributed access.
+- Streaming video and audio.
+- Writing to log files.
+- Storing data for backup and restore, disaster recovery, and archiving.
+- Storing data for analysis by an on-premises or Azure-hosted service.
+
+Blob storage offers three types of resources:
+
+- The _storage account_
+- One or more _containers_ in a storage account
+- One ore more _blobs_ in a container
+
+Instances of the `azblob.Client` type provide methods for manipulating containers and blobs within a storage account.
+The storage account is specified when the `azblob.Client` is constructed.
+Use the appropriate client constructor function for the authentication mechanism you wish to use.
+
+Learn more about options for authentication _(including Connection Strings, Shared Key, Shared Access Signatures (SAS), Azure Active Directory (AAD), and anonymous public access)_ [in our examples.](https://github.com/Azure/azure-sdk-for-go/blob/main/sdk/storage/azblob/examples_test.go)
+
+### Goroutine safety
+We guarantee that all client instance methods are goroutine-safe and independent of each other ([guideline](https://azure.github.io/azure-sdk/golang_introduction.html#thread-safety)). This ensures that the recommendation of reusing client instances is always safe, even across goroutines.
+
+### About blob metadata
+Blob metadata name/value pairs are valid HTTP headers and should adhere to all restrictions governing HTTP headers. Metadata names must be valid HTTP header names, may contain only ASCII characters, and should be treated as case-insensitive. Base64-encode or URL-encode metadata values containing non-ASCII characters.
+
+### Additional concepts
+<!-- CLIENT COMMON BAR -->
+[Client options](https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/azcore/policy#ClientOptions) |
+[Accessing the response](https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime#WithCaptureResponse) |
+[Handling failures](https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/azcore#ResponseError) |
+[Logging](https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/azcore/log)
+<!-- CLIENT COMMON BAR -->
+
+## Examples
+
+### Uploading a blob
+
+```go
+const (
+	account       = "https://MYSTORAGEACCOUNT.blob.core.windows.net/"
+	containerName = "sample-container"
+	blobName      = "sample-blob"
+	sampleFile    = "path/to/sample/file"
+)
+
+// authenticate with Azure Active Directory
+cred, err := azidentity.NewDefaultAzureCredential(nil)
+// TODO: handle error
+
+// create a client for the specified storage account
+client, err := azblob.NewClient(account, cred, nil)
+// TODO: handle error
+
+// open the file for reading
+file, err := os.OpenFile(sampleFile, os.O_RDONLY, 0)
+// TODO: handle error
+defer file.Close()
+
+// upload the file to the specified container with the specified blob name
+_, err = client.UploadFile(context.TODO(), containerName, blobName, file, nil)
+// TODO: handle error
+```
+
+### Downloading a blob
+
+```go
+// this example accesses a public blob via anonymous access, so no credentials are required
+client, err := azblob.NewClientWithNoCredential("https://azurestoragesamples.blob.core.windows.net/", nil)
+// TODO: handle error
+
+// create or open a local file where we can download the blob
+file, err := os.Create("cloud.jpg")
+// TODO: handle error
+defer file.Close()
+
+// download the blob
+_, err = client.DownloadFile(context.TODO(), "samples", "cloud.jpg", file, nil)
+// TODO: handle error
+```
+
+### Enumerating blobs
+
+```go
+const (
+	account       = "https://MYSTORAGEACCOUNT.blob.core.windows.net/"
+	containerName = "sample-container"
+)
+
+// authenticate with Azure Active Directory
+cred, err := azidentity.NewDefaultAzureCredential(nil)
+// TODO: handle error
+
+// create a client for the specified storage account
+client, err := azblob.NewClient(account, cred, nil)
+// TODO: handle error
+
+// blob listings are returned across multiple pages
+pager := client.NewListBlobsFlatPager(containerName, nil)
+
+// continue fetching pages until no more remain
+for pager.More() {
+  // advance to the next page
+	page, err := pager.NextPage(context.TODO())
+	// TODO: handle error
+
+	// print the blob names for this page
+	for _, blob := range page.Segment.BlobItems {
+		fmt.Println(*blob.Name)
+	}
+}
+```
+
+## Troubleshooting
+
+All Blob service operations will return an
+[*azcore.ResponseError][azcore_response_error] on failure with a
+populated `ErrorCode` field. Many of these errors are recoverable.
+The [bloberror][blob_error] package provides the possible Storage error codes
+along with various helper facilities for error handling.
+
+```go
+const (
+	connectionString = "<connection_string>"
+	containerName    = "sample-container"
+)
+
+// create a client with the provided connection string
+client, err := azblob.NewClientFromConnectionString(connectionString, nil)
+// TODO: handle error
+
+// try to delete the container, avoiding any potential race conditions with an in-progress or completed deletion
+_, err = client.DeleteContainer(context.TODO(), containerName, nil)
+
+if bloberror.HasCode(err, bloberror.ContainerBeingDeleted, bloberror.ContainerNotFound) {
+	// ignore any errors if the container is being deleted or already has been deleted
+} else if err != nil {
+	// TODO: some other error
+}
+```
+
+## Next steps
+
+Get started with our [Blob samples][samples].  They contain complete examples of the above snippets and more.
+
+### Specialized clients
+
+The Azure Blob Storage SDK for Go also provides specialized clients in various subpackages.
+Use these clients when you need to interact with a specific kind of blob.
+Learn more about the various types of blobs from the following links.
+
+- [appendblob][append_blob] - [REST docs](https://docs.microsoft.com/rest/api/storageservices/understanding-block-blobs--append-blobs--and-page-blobs#about-append-blobs)
+- [blockblob][block_blob] - [REST docs](https://docs.microsoft.com/rest/api/storageservices/understanding-block-blobs--append-blobs--and-page-blobs#about-block-blobs)
+- [pageblob][page_blob] - [REST docs](https://docs.microsoft.com/rest/api/storageservices/understanding-block-blobs--append-blobs--and-page-blobs#about-page-blobs)
+
+The [blob][blob] package contains APIs common to all blob types.  This includes APIs for deleting and undeleting a blob, setting metadata, and more.
+
+The [lease][lease] package contains clients for managing leases on blobs and containers.  Please see the [reference docs](https://docs.microsoft.com/rest/api/storageservices/lease-blob#remarks) for general information on leases.
+
+The [container][container] package contains APIs specific to containers.  This includes APIs setting access policies or properties, and more.
+
+The [service][service] package contains APIs specific to blob service.  This includes APIs for manipulating containers, retrieving account information, and more.
+
+The [sas][sas] package contains utilities to aid in the creation and manipulation of Shared Access Signature tokens.
+See the package's documentation for more information.
+
+## Contributing
+
+See the [Storage CONTRIBUTING.md][storage_contrib] for details on building,
+testing, and contributing to this library.
+
+This project welcomes contributions and suggestions.  Most contributions require
+you to agree to a Contributor License Agreement (CLA) declaring that you have
+the right to, and actually do, grant us the rights to use your contribution. For
+details, visit [cla.microsoft.com][cla].
+
+This project has adopted the [Microsoft Open Source Code of Conduct][coc].
+For more information see the [Code of Conduct FAQ][coc_faq]
+or contact [opencode@microsoft.com][coc_contact] with any
+additional questions or comments.
+
+![Impressions](https://azure-sdk-impressions.azurewebsites.net/api/impressions/azure-sdk-for-go%2Fsdk%2Fstorage%2Fazblob%2FREADME.png)
+
+<!-- LINKS -->
+[source]: https://github.com/Azure/azure-sdk-for-go/tree/main/sdk/storage/azblob
+[docs]: https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/storage/azblob
+[rest_docs]: https://docs.microsoft.com/rest/api/storageservices/blob-service-rest-api
+[product_docs]: https://docs.microsoft.com/azure/storage/blobs/storage-blobs-overview
+[godevdl]: https://go.dev/dl/
+[goget]: https://pkg.go.dev/cmd/go#hdr-Add_dependencies_to_current_module_and_install_them
+[storage_account_docs]: https://docs.microsoft.com/azure/storage/common/storage-account-overview
+[storage_account_create_ps]: https://docs.microsoft.com/azure/storage/common/storage-quickstart-create-account?tabs=azure-powershell
+[storage_account_create_cli]: https://docs.microsoft.com/azure/storage/common/storage-quickstart-create-account?tabs=azure-cli
+[storage_account_create_portal]: https://docs.microsoft.com/azure/storage/common/storage-quickstart-create-account?tabs=azure-portal
+[azure_cli]: https://docs.microsoft.com/cli/azure
+[azure_sub]: https://azure.microsoft.com/free/
+[azidentity]: https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/azidentity
+[storage_ad]: https://docs.microsoft.com/azure/storage/common/storage-auth-aad
+[azcore_response_error]: https://pkg.go.dev/github.com/Azure/azure-sdk-for-go/sdk/azcore#ResponseError
+[samples]: https://github.com/Azure/azure-sdk-for-go/blob/main/sdk/storage/azblob/examples_test.go
+[append_blob]: https://github.com/Azure/azure-sdk-for-go/tree/main/sdk/storage/azblob/appendblob/client.go
+[blob]: https://github.com/Azure/azure-sdk-for-go/tree/main/sdk/storage/azblob/blob/client.go
+[blob_error]: https://github.com/Azure/azure-sdk-for-go/tree/main/sdk/storage/azblob/bloberror/error_codes.go
+[block_blob]: https://github.com/Azure/azure-sdk-for-go/tree/main/sdk/storage/azblob/blockblob/client.go
+[container]: https://github.com/Azure/azure-sdk-for-go/tree/main/sdk/storage/azblob/container/client.go
+[lease]: https://github.com/Azure/azure-sdk-for-go/tree/main/sdk/storage/azblob/lease
+[page_blob]: https://github.com/Azure/azure-sdk-for-go/tree/main/sdk/storage/azblob/pageblob/client.go
+[sas]: https://github.com/Azure/azure-sdk-for-go/tree/main/sdk/storage/azblob/sas
+[service]: https://github.com/Azure/azure-sdk-for-go/tree/main/sdk/storage/azblob/service/client.go
+[storage_contrib]: https://github.com/Azure/azure-sdk-for-go/blob/main/CONTRIBUTING.md
+[cla]: https://cla.microsoft.com
+[coc]: https://opensource.microsoft.com/codeofconduct/
+[coc_faq]: https://opensource.microsoft.com/codeofconduct/faq/
+[coc_contact]: mailto:opencode@microsoft.com