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Preserve author information in schema1 manifests

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When we push a schema1 manifest, we encode history information from the
image JSON into v1Compatibility strings for the respective layers. The
"author" field was not being set in these v1Compatibility strings, so if
a parent layer had an author set, it would not be preserved after
pushing through a schema1 manifest and repulling, so the image ID would
change after the pull. This change preserves the authorship information
for parent layers so that the image ID does not change.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
This commit is contained in:
Aaron Lehmann 2016-04-28 11:57:48 -07:00 committed by Richard Scothern
parent ba672e8b69
commit 93d76247f2
2 changed files with 6 additions and 3 deletions
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4
manifest/schema1/config_builder.go
View file

@ -110,7 +110,8 @@ func (mb *configManifestBuilder) Build(ctx context.Context) (m distribution.Mani
ContainerConfig struct { ContainerConfig struct {
Cmd []string Cmd []string
} `json:"container_config,omitempty"` } `json:"container_config,omitempty"`
ThrowAway bool `json:"throwaway,omitempty"` Author string `json:"author,omitempty"`
ThrowAway bool `json:"throwaway,omitempty"`
} }
fsLayerList := make([]FSLayer, len(img.History)) fsLayerList := make([]FSLayer, len(img.History))
@ -145,6 +146,7 @@ func (mb *configManifestBuilder) Build(ctx context.Context) (m distribution.Mani
Parent: parent, Parent: parent,
Comment: h.Comment, Comment: h.Comment,
Created: h.Created, Created: h.Created,
Author: h.Author,
} }
v1Compatibility.ContainerConfig.Cmd = []string{img.History[i].CreatedBy} v1Compatibility.ContainerConfig.Cmd = []string{img.History[i].CreatedBy}
if h.EmptyLayer { if h.EmptyLayer {

5
manifest/schema1/config_builder_test.go
View file

@ -163,6 +163,7 @@ func TestConfigBuilder(t *testing.T) {
"empty_layer": true "empty_layer": true
}, },
{ {
"author": "Alyssa P. Hacker \u003calyspdev@example.com\u003e",
"created": "2015-11-04T23:06:32.083868454Z", "created": "2015-11-04T23:06:32.083868454Z",
"created_by": "/bin/sh -c dd if=/dev/zero of=/file bs=1024 count=1024" "created_by": "/bin/sh -c dd if=/dev/zero of=/file bs=1024 count=1024"
}, },
@ -252,8 +253,8 @@ func TestConfigBuilder(t *testing.T) {
} }
expectedV1Compatibility := []string{ expectedV1Compatibility := []string{
`{"architecture":"amd64","config":{"AttachStderr":false,"AttachStdin":false,"AttachStdout":false,"Cmd":["/bin/sh","-c","echo hi"],"Domainname":"","Entrypoint":null,"Env":["PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin","derived=true","asdf=true"],"Hostname":"23304fc829f9","Image":"sha256:4ab15c48b859c2920dd5224f92aabcd39a52794c5b3cf088fb3bbb438756c246","Labels":{},"OnBuild":[],"OpenStdin":false,"StdinOnce":false,"Tty":false,"User":"","Volumes":null,"WorkingDir":""},"container":"e91032eb0403a61bfe085ff5a5a48e3659e5a6deae9f4d678daa2ae399d5a001","container_config":{"AttachStderr":false,"AttachStdin":false,"AttachStdout":false,"Cmd":["/bin/sh","-c","#(nop) CMD [\"/bin/sh\" \"-c\" \"echo hi\"]"],"Domainname":"","Entrypoint":null,"Env":["PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin","derived=true","asdf=true"],"Hostname":"23304fc829f9","Image":"sha256:4ab15c48b859c2920dd5224f92aabcd39a52794c5b3cf088fb3bbb438756c246","Labels":{},"OnBuild":[],"OpenStdin":false,"StdinOnce":false,"Tty":false,"User":"","Volumes":null,"WorkingDir":""},"created":"2015-11-04T23:06:32.365666163Z","docker_version":"1.9.0-dev","id":"0850bfdeb7b060b1004a09099846c2f023a3f2ecbf33f56b4774384b00ce0323","os":"linux","parent":"74cf9c92699240efdba1903c2748ef57105d5bedc588084c4e88f3bb1c3ef0b0","throwaway":true}`, `{"architecture":"amd64","config":{"AttachStderr":false,"AttachStdin":false,"AttachStdout":false,"Cmd":["/bin/sh","-c","echo hi"],"Domainname":"","Entrypoint":null,"Env":["PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin","derived=true","asdf=true"],"Hostname":"23304fc829f9","Image":"sha256:4ab15c48b859c2920dd5224f92aabcd39a52794c5b3cf088fb3bbb438756c246","Labels":{},"OnBuild":[],"OpenStdin":false,"StdinOnce":false,"Tty":false,"User":"","Volumes":null,"WorkingDir":""},"container":"e91032eb0403a61bfe085ff5a5a48e3659e5a6deae9f4d678daa2ae399d5a001","container_config":{"AttachStderr":false,"AttachStdin":false,"AttachStdout":false,"Cmd":["/bin/sh","-c","#(nop) CMD [\"/bin/sh\" \"-c\" \"echo hi\"]"],"Domainname":"","Entrypoint":null,"Env":["PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin","derived=true","asdf=true"],"Hostname":"23304fc829f9","Image":"sha256:4ab15c48b859c2920dd5224f92aabcd39a52794c5b3cf088fb3bbb438756c246","Labels":{},"OnBuild":[],"OpenStdin":false,"StdinOnce":false,"Tty":false,"User":"","Volumes":null,"WorkingDir":""},"created":"2015-11-04T23:06:32.365666163Z","docker_version":"1.9.0-dev","id":"69e5c1bfadad697fdb6db59f6326648fa119e0c031a0eda33b8cfadcab54ba7f","os":"linux","parent":"74cf9c92699240efdba1903c2748ef57105d5bedc588084c4e88f3bb1c3ef0b0","throwaway":true}`,
`{"id":"74cf9c92699240efdba1903c2748ef57105d5bedc588084c4e88f3bb1c3ef0b0","parent":"178be37afc7c49e951abd75525dbe0871b62ad49402f037164ee6314f754599d","created":"2015-11-04T23:06:32.083868454Z","container_config":{"Cmd":["/bin/sh -c dd if=/dev/zero of=/file bs=1024 count=1024"]}}`, `{"id":"74cf9c92699240efdba1903c2748ef57105d5bedc588084c4e88f3bb1c3ef0b0","parent":"178be37afc7c49e951abd75525dbe0871b62ad49402f037164ee6314f754599d","created":"2015-11-04T23:06:32.083868454Z","container_config":{"Cmd":["/bin/sh -c dd if=/dev/zero of=/file bs=1024 count=1024"]},"author":"Alyssa P. Hacker \u003calyspdev@example.com\u003e"}`,
`{"id":"178be37afc7c49e951abd75525dbe0871b62ad49402f037164ee6314f754599d","parent":"b449305a55a283538c4574856a8b701f2a3d5ec08ef8aec47f385f20339a4866","created":"2015-11-04T23:06:31.192097572Z","container_config":{"Cmd":["/bin/sh -c #(nop) ENV asdf=true"]},"throwaway":true}`, `{"id":"178be37afc7c49e951abd75525dbe0871b62ad49402f037164ee6314f754599d","parent":"b449305a55a283538c4574856a8b701f2a3d5ec08ef8aec47f385f20339a4866","created":"2015-11-04T23:06:31.192097572Z","container_config":{"Cmd":["/bin/sh -c #(nop) ENV asdf=true"]},"throwaway":true}`,
`{"id":"b449305a55a283538c4574856a8b701f2a3d5ec08ef8aec47f385f20339a4866","parent":"9e3447ca24cb96d86ebd5960cb34d1299b07e0a0e03801d90b9969a2c187dd6e","created":"2015-11-04T23:06:30.934316144Z","container_config":{"Cmd":["/bin/sh -c #(nop) ENV derived=true"]},"throwaway":true}`, `{"id":"b449305a55a283538c4574856a8b701f2a3d5ec08ef8aec47f385f20339a4866","parent":"9e3447ca24cb96d86ebd5960cb34d1299b07e0a0e03801d90b9969a2c187dd6e","created":"2015-11-04T23:06:30.934316144Z","container_config":{"Cmd":["/bin/sh -c #(nop) ENV derived=true"]},"throwaway":true}`,
`{"id":"9e3447ca24cb96d86ebd5960cb34d1299b07e0a0e03801d90b9969a2c187dd6e","parent":"3690474eb5b4b26fdfbd89c6e159e8cc376ca76ef48032a30fa6aafd56337880","created":"2015-10-31T22:22:55.613815829Z","container_config":{"Cmd":["/bin/sh -c #(nop) CMD [\"sh\"]"]}}`, `{"id":"9e3447ca24cb96d86ebd5960cb34d1299b07e0a0e03801d90b9969a2c187dd6e","parent":"3690474eb5b4b26fdfbd89c6e159e8cc376ca76ef48032a30fa6aafd56337880","created":"2015-10-31T22:22:55.613815829Z","container_config":{"Cmd":["/bin/sh -c #(nop) CMD [\"sh\"]"]}}`,