[#15 ] tracing: Add events for grpc stream calls

Signed-off-by: Roman Loginov <r.loginov@yadro.com>
[#17 ] config: Add resource attributes
2024-11-25 16:38:52 +03:00 · 2024-11-12 11:23:07 +03:00 · 2024-11-08 15:06:58 +03:00 · 2024-09-09 14:43:14 +03:00 · 2024-07-05 10:37:41 +03:00 · 2024-07-05 10:37:40 +03:00
23 changed files with 564 additions and 144 deletions
--- a/.forgejo/workflows/dco.yml
+++ b/.forgejo/workflows/dco.yml
@ -13,7 +13,7 @@ jobs:
      - name: Setup Go
        uses: actions/setup-go@v3
        with:
-          go-version: '1.21'
+          go-version: '1.22'

      - name: Run commit format checker
        uses: https://git.frostfs.info/TrueCloudLab/dco-go@v3
--- a/.forgejo/workflows/tests.yml
+++ b/.forgejo/workflows/tests.yml
@ -11,7 +11,7 @@ jobs:
      - name: Set up Go
        uses: actions/setup-go@v3
        with:
-          go-version: '1.21'
+          go-version: '1.22'
          cache: true

      - name: Install linters
@ -25,7 +25,7 @@ jobs:
    runs-on: ubuntu-latest
    strategy:
      matrix:
-        go_versions: [ '1.20', '1.21' ]
+        go_versions: [ '1.21', '1.22' ]
      fail-fast: false
    steps:
      - uses: actions/checkout@v3
@ -48,7 +48,7 @@ jobs:
      - name: Set up Go
        uses: actions/setup-go@v3
        with:
-          go-version: '1.21'
+          go-version: '1.22'
          cache: true

      - name: Run tests
@ -63,7 +63,7 @@ jobs:
      - name: Set up Go
        uses: actions/setup-go@v3
        with:
-          go-version: '1.21'
+          go-version: '1.22'
          cache: true

      - name: Install staticcheck
--- a/.gitlint
+++ b/.gitlint
@ -1,11 +0,0 @@
-[general]
-fail-without-commits=True
-regex-style-search=True
-contrib=CC1
-
-[title-match-regex]
-regex=^\[\#[0-9Xx]+\]\s
-
-[ignore-by-title]
-regex=^Release(.*)
-ignore=title-match-regex
--- a/.golangci.yml
+++ b/.golangci.yml
@ -25,7 +25,7 @@ linters-settings:
    # report about shadowed variables
    check-shadowing: false
  staticcheck:
-    checks: ["all", "-SA1019"] # TODO Enable SA1019 after deprecated warning are fixed.
+    checks: ["all"]
  funlen:
    lines: 80 # default 60
    statements: 60 # default 40
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@ -2,13 +2,6 @@ ci:
  autofix_prs: false

 repos:
-  - repo: https://github.com/jorisroovers/gitlint
-    rev:  v0.19.1
-    hooks:
-      - id: gitlint
-        stages: [commit-msg]
-      - id: gitlint-ci
-
  - repo: https://github.com/pre-commit/pre-commit-hooks
    rev: v4.4.0
    hooks:
@ -31,7 +24,7 @@ repos:
      - id: shellcheck

  - repo: https://github.com/golangci/golangci-lint
-    rev: v1.51.2
+    rev: v1.59.1
    hooks:
      - id: golangci-lint

@ -39,7 +32,7 @@ repos:
    hooks:
       - id: go-unit-tests
         name: go unit tests
-         entry: make test
+         entry: make test GOFLAGS=''
         pass_filenames: false
         types: [go]
         language: system
--- a/201
+++ b/201
@ -0,0 +1,201 @@
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+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
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+      and charge a fee for, acceptance of support, warranty, indemnity,
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+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "{}"
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+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
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--- a/5
+++ b/5
@ -4,7 +4,7 @@ SHELL = bash
 TRUECLOUDLAB_LINT_VERSION ?= 0.0.3
 TMP_DIR := .cache
 OUTPUT_LINT_DIR ?= $(shell pwd)/bin
-LINT_VERSION ?= 1.55.2
+LINT_VERSION ?= 1.59.1
 LINT_DIR = $(OUTPUT_LINT_DIR)/golangci-lint-$(LINT_VERSION)-v$(TRUECLOUDLAB_LINT_VERSION)

 # Run all code formatters
@ -21,9 +21,10 @@ imports:
 	@goimports -w .

 # Run Unit Test with go test
+test: GOFLAGS ?= "-count=1"
 test:
 	@echo "⇒ Running go test"
-	@go test ./... -count=1
+	@GOFLAGS="$(GOFLAGS)" go test ./...

 # Activate pre-commit hooks
 pre-commit:
--- a/README.md
+++ b/README.md
@ -0,0 +1,22 @@
+# Helper Go libraries for working with metrics, traces and logging
+
+See package documentation
+at [pkg.go.dev](https://pkg.go.dev/git.frostfs.info/TrueCloudLab/frostfs-observability)
+
+## License and copyright
+
+Copyright 2023-2024 FrostFS contributors
+
+```
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+```
--- a/go.mod
+++ b/go.mod
@ -1,49 +1,47 @@
 module git.frostfs.info/TrueCloudLab/frostfs-observability

-go 1.19
+go 1.21

 require (
 	github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.0-rc.0
 	github.com/prometheus/client_golang v1.15.1
 	github.com/prometheus/client_model v0.3.0
-	github.com/stretchr/testify v1.8.3
-	go.opentelemetry.io/otel v1.16.0
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.16.0
-	go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.16.0
-	go.opentelemetry.io/otel/sdk v1.16.0
-	go.opentelemetry.io/otel/trace v1.16.0
-	google.golang.org/grpc v1.55.0
-	google.golang.org/protobuf v1.30.0
+	github.com/stretchr/testify v1.9.0
+	go.opentelemetry.io/otel v1.28.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.28.0
+	go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.28.0
+	go.opentelemetry.io/otel/sdk v1.28.0
+	go.opentelemetry.io/otel/trace v1.28.0
+	google.golang.org/grpc v1.64.0
+	google.golang.org/protobuf v1.34.2
 )

 require (
-	github.com/kr/text v0.2.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
 	go.uber.org/multierr v1.10.0 // indirect
 )

 require (
 	github.com/beorn7/perks v1.0.1 // indirect
-	github.com/cenkalti/backoff/v4 v4.2.1 // indirect
+	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/go-logr/logr v1.2.4 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
-	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/golang/protobuf v1.5.4 // indirect
 	github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.0.0-rc.3 // indirect
-	github.com/grpc-ecosystem/grpc-gateway/v2 v2.7.0 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.20.0 // indirect
 	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/prometheus/common v0.42.0 // indirect
 	github.com/prometheus/procfs v0.9.0 // indirect
-	github.com/rogpeppe/go-internal v1.10.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/internal/retry v1.16.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.16.0 // indirect
-	go.opentelemetry.io/otel/metric v1.16.0 // indirect
-	go.opentelemetry.io/proto/otlp v0.19.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.28.0 // indirect
+	go.opentelemetry.io/otel/metric v1.28.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.3.1 // indirect
 	go.uber.org/zap v1.26.0
-	golang.org/x/net v0.8.0 // indirect
-	golang.org/x/sys v0.13.0 // indirect
-	golang.org/x/text v0.8.0 // indirect
+	golang.org/x/net v0.26.0 // indirect
+	golang.org/x/sys v0.22.0 // indirect
+	golang.org/x/text v0.16.0 // indirect
 	google.golang.org/genproto v0.0.0-20230306155012-7f2fa6fef1f4 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
--- a/go.sum
+++ b/go.sum
@ -33,15 +33,11 @@ cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 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/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
-github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
-github.com/cenkalti/backoff/v4 v4.2.1 h1:y4OZtCnogmCPw98Zjyt5a6+QwPLGkiQsYW5oUqylYbM=
-github.com/cenkalti/backoff/v4 v4.2.1/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
+github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK343L8=
+github.com/cenkalti/backoff/v4 v4.3.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
-github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
-github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
 github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
@ -50,35 +46,23 @@ github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMn
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
 github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
-github.com/cncf/udpa/go v0.0.0-20210930031921-04548b0d99d4/go.mod h1:6pvJx4me5XPnfI9Z40ddWsdw2W/uZgQLFXToKeRcDiI=
-github.com/cncf/xds/go v0.0.0-20210312221358-fbca930ec8ed/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
-github.com/cncf/xds/go v0.0.0-20210805033703-aa0b78936158/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
-github.com/cncf/xds/go v0.0.0-20210922020428-25de7278fc84/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
-github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
-github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 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/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
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 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
-github.com/golang/glog v1.0.0/go.mod h1:EWib/APOK0SL3dFbYqvxE3UYd8E6s1ouQ7iEp/0LWV4=
-github.com/golang/glog v1.1.0 h1:/d3pCKDPWNnvIWe0vVUpNP32qc8U3PDVxySP/y360qE=
 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=
 github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
@ -102,11 +86,10 @@ github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:W
 github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
 github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QDs8UjoX8=
 github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
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 github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
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 github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
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@ -117,8 +100,8 @@ github.com/google/go-cmp v0.4.1/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
 github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
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 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
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@ -130,15 +113,16 @@ github.com/google/pprof v0.0.0-20200430221834-fc25d7d30c6d/go.mod h1:ZgVRPoUq/hf
 github.com/google/pprof v0.0.0-20200708004538-1a94d8640e99/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
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 github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
@ -147,6 +131,7 @@ github.com/jstemmer/go-junit-report v0.9.1/go.mod h1:Brl9GWCQeLvo8nXZwPNNblvFj/X
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
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@ -166,17 +151,15 @@ github.com/prometheus/common v0.42.0 h1:EKsfXEYo4JpWMHH5cg+KOUWeuJSov1Id8zGR8eeI
 github.com/prometheus/common v0.42.0/go.mod h1:xBwqVerjNdUDjgODMpudtOMwlOwf2SaTr1yjz4b7Zbc=
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@ -185,26 +168,24 @@ go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
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+go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.28.0/go.mod h1:Ea1N1QQryNXpCD0I1fdLibBAIpQuBkznMmkdKrapk1Y=
+go.opentelemetry.io/otel/metric v1.28.0 h1:f0HGvSl1KRAU1DLgLGFjrwVyismPlnuU6JD6bOeuA5Q=
+go.opentelemetry.io/otel/metric v1.28.0/go.mod h1:Fb1eVBFZmLVTMb6PPohq3TO9IIhUisDsbJoL/+uQW4s=
+go.opentelemetry.io/otel/sdk v1.28.0 h1:b9d7hIry8yZsgtbmM0DKyPWMMUMlK9NEKuIG4aBqWyE=
+go.opentelemetry.io/otel/sdk v1.28.0/go.mod h1:oYj7ClPUA7Iw3m+r7GeEjz0qckQRJK2B8zjcZEfu7Pg=
+go.opentelemetry.io/otel/trace v1.28.0 h1:GhQ9cUuQGmNDd5BTCP2dAvv75RdMxEfTmYejp+lkx9g=
+go.opentelemetry.io/otel/trace v1.28.0/go.mod h1:jPyXzNPg6da9+38HEwElrQiHlVMTnVfM3/yv2OlIHaI=
+go.opentelemetry.io/proto/otlp v1.3.1 h1:TrMUixzpM0yuc/znrFTP9MMRh8trP93mkCiDVeXrui0=
+go.opentelemetry.io/proto/otlp v1.3.1/go.mod h1:0X1WI4de4ZsLrrJNLAQbFeLCm3T7yBkR0XqQ7niQU+8=
+go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
+go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
 go.uber.org/multierr v1.10.0 h1:S0h4aNzvfcFsC3dRF1jLoaov7oRaKqRGC/pUEJ2yvPQ=
 go.uber.org/multierr v1.10.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
 go.uber.org/zap v1.26.0 h1:sI7k6L95XOKS281NhVKOFCUNIvv9e0w4BF8N3u+tCRo=
@ -270,17 +251,15 @@ 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 v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
 golang.org/x/net v0.0.0-20210423184538-5f58ad60dda6/go.mod h1:OJAsFXCWl8Ukc7SiCT/9KSuxbyM7479/AVlXFRxuMCk=
-golang.org/x/net v0.8.0 h1:Zrh2ngAOFYneWTAIAPethzeaQLuHwhuBkuV6ZiRnUaQ=
-golang.org/x/net v0.8.0/go.mod h1:QVkue5JL9kW//ek3r6jTKnTFis1tRmNAW2P1shuFdJc=
+golang.org/x/net v0.26.0 h1:soB7SVo0PWrY4vPW/+ay0jKDNScG2X9wFeYlXIvJsOQ=
+golang.org/x/net v0.26.0/go.mod h1:5YKkiSynbBIh3p6iOc/vibscux0x38BZDkn8sCUPxHE=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20191202225959-858c2ad4c8b6/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20210413134643-5e61552d6c78/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
-golang.org/x/oauth2 v0.0.0-20211104180415-d3ed0bb246c8/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@ -315,21 +294,18 @@ golang.org/x/sys v0.0.0-20200515095857-1151b9dac4a9/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200523222454-059865788121/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200803210538-64077c9b5642/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.13.0 h1:Af8nKPmuFypiUBjVoU9V20FiaFXOcuZI21p0ycVYYGE=
-golang.org/x/sys v0.13.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.22.0 h1:RI27ohtqKCnwULzJLqkv897zojh5/DwS/ENaMzUOaWI=
+golang.org/x/sys v0.22.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.8.0 h1:57P1ETyNKtuIjB4SRd15iJxuhj8Gc416Y78H3qgMh68=
-golang.org/x/text v0.8.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
+golang.org/x/text v0.16.0 h1:a94ExnEXNtEwYLGJSIUxnWoxoRz/ZcCsV63ROupILh4=
+golang.org/x/text v0.16.0/go.mod h1:GhwF1Be+LQoKShO3cGOHzqOgRrGaYc9AvblQOmPVHnI=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
@ -422,7 +398,6 @@ google.golang.org/genproto v0.0.0-20200312145019-da6875a35672/go.mod h1:55QSHmfG
 google.golang.org/genproto v0.0.0-20200331122359-1ee6d9798940/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/genproto v0.0.0-20200430143042-b979b6f78d84/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/genproto v0.0.0-20200511104702-f5ebc3bea380/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
-google.golang.org/genproto v0.0.0-20200513103714-09dca8ec2884/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/genproto v0.0.0-20200515170657-fc4c6c6a6587/go.mod h1:YsZOwe1myG/8QRHRsmBRE1LrgQY60beZKjly0O1fX9U=
 google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
 google.golang.org/genproto v0.0.0-20200618031413-b414f8b61790/go.mod h1:jDfRM7FcilCzHH/e9qn6dsT145K34l5v+OpcnNgKAAA=
@ -430,7 +405,6 @@ google.golang.org/genproto v0.0.0-20200729003335-053ba62fc06f/go.mod h1:FWY/as6D
 google.golang.org/genproto v0.0.0-20200804131852-c06518451d9c/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20200806141610-86f49bd18e98/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20200825200019-8632dd797987/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
-google.golang.org/genproto v0.0.0-20211118181313-81c1377c94b1/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
 google.golang.org/genproto v0.0.0-20230306155012-7f2fa6fef1f4 h1:DdoeryqhaXp1LtT/emMP1BRJPHHKFi5akj/nbx/zNTA=
 google.golang.org/genproto v0.0.0-20230306155012-7f2fa6fef1f4/go.mod h1:NWraEVixdDnqcqQ30jipen1STv2r/n24Wb7twVTGR4s=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
@ -445,13 +419,9 @@ google.golang.org/grpc v1.28.0/go.mod h1:rpkK4SK4GF4Ach/+MFLZUBavHOvF2JJB5uozKKa
 google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
 google.golang.org/grpc v1.30.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
 google.golang.org/grpc v1.31.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
-google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
-google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
 google.golang.org/grpc v1.37.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
-google.golang.org/grpc v1.40.0/go.mod h1:ogyxbiOoUXAkP+4+xa6PZSE9DZgIHtSpzjDTB9KAK34=
-google.golang.org/grpc v1.42.0/go.mod h1:k+4IHHFw41K8+bbowsex27ge2rCb65oeWqe4jJ590SU=
-google.golang.org/grpc v1.55.0 h1:3Oj82/tFSCeUrRTg/5E/7d/W5A1tj6Ky1ABAuZuv5ag=
-google.golang.org/grpc v1.55.0/go.mod h1:iYEXKGkEBhg1PjZQvoYEVPTDkHo1/bjTnfwTeGONTY8=
+google.golang.org/grpc v1.64.0 h1:KH3VH9y/MgNQg1dE7b3XfVK0GsPSIzJwdF617gUSbvY=
+google.golang.org/grpc v1.64.0/go.mod h1:oxjF8E3FBnjp+/gVFYdWacaLDx9na1aqy9oovLpxQYg=
 google.golang.org/grpc/examples v0.0.0-20210424002626-9572fd6faeae/go.mod h1:Ly7ZA/ARzg8fnPU9TyZIxoz33sEUuWX7txiqs8lPTgE=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
@ -465,15 +435,14 @@ google.golang.org/protobuf v1.24.0/go.mod h1:r/3tXBNzIEhYS9I1OUVjXDlt8tc493IdKGj
 google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
-google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
-google.golang.org/protobuf v1.30.0 h1:kPPoIgf3TsEvrm0PFe15JQ+570QVxYzEvvHqChK+cng=
-google.golang.org/protobuf v1.30.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+google.golang.org/protobuf v1.34.2 h1:6xV6lTsCfpGD21XK49h7MhtcApnLqkfYgPcdHftf6hg=
+google.golang.org/protobuf v1.34.2/go.mod h1:qYOHts0dSfpeUzUFpOMr/WGzszTmLH+DiWniOlNbLDw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
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 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
--- a/testdata/tracing/invalid_empty_root_ca.pem
+++ b/testdata/tracing/invalid_empty_root_ca.pem
--- a/testdata/tracing/invalid_root_ca.pem
+++ b/testdata/tracing/invalid_root_ca.pem
@ -0,0 +1 @@
+invalid content
--- a/testdata/tracing/valid_google_globalsign_r4_rsa_root_ca.pem
+++ b/testdata/tracing/valid_google_globalsign_r4_rsa_root_ca.pem
@ -0,0 +1,12 @@
+-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
--- a/testdata/tracing/valid_google_gts_r4_ecdsa_root_ca.pem
+++ b/testdata/tracing/valid_google_gts_r4_ecdsa_root_ca.pem
@ -0,0 +1,13 @@
+-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
--- a/tracing/config.go
+++ b/tracing/config.go
@ -1,6 +1,10 @@
 package tracing

-import "fmt"
+import (
+	"crypto/x509"
+	"fmt"
+	"maps"
+)

 // Exporter is type of tracing target.
 type Exporter string
@ -18,6 +22,8 @@ type Config struct {
 	Exporter Exporter
 	// Endpoint is collector endpoint for OTLP exporters.
 	Endpoint string
+	// ServerCaCertPool is cert pool of the remote server CA certificate. Use for TLS setup.
+	ServerCaCertPool *x509.CertPool

 	// Service is service name that will be used in tracing.
 	// Mandatory.
@ -28,6 +34,9 @@ type Config struct {
 	// Version is version of service instance.
 	// Optional.
 	Version string
+	// Attributes is KV list of attributes.
+	// Optional.
+	Attributes map[string]string
 }

 func (c *Config) validate() error {
@ -64,6 +73,10 @@ func (c *Config) hasChange(other *Config) bool {
 		return !c.serviceInfoEqual(other)
 	}

+	if other.Exporter == OTLPgRPCExporter && !c.ServerCaCertPool.Equal(other.ServerCaCertPool) {
+		return true
+	}
+
 	return c.Exporter != other.Exporter ||
 		c.Endpoint != other.Endpoint ||
 		!c.serviceInfoEqual(other)
@ -72,5 +85,6 @@ func (c *Config) hasChange(other *Config) bool {
 func (c *Config) serviceInfoEqual(other *Config) bool {
 	return c.Service == other.Service &&
 		c.InstanceID == other.InstanceID &&
-		c.Version == other.Version
+		c.Version == other.Version &&
+		maps.Equal(c.Attributes, other.Attributes)
 }
--- a/tracing/config_test.go
+++ b/tracing/config_test.go
@ -1,7 +1,11 @@
 package tracing

 import (
+	"crypto/x509"
+	"os"
 	"testing"
+
+	"github.com/stretchr/testify/require"
 )

 func TestConfig_validate(t *testing.T) {
@ -232,6 +236,28 @@ func TestConfig_hasChange(t *testing.T) {
 				Version:    "v1.0.0",
 			},
 		},
+		{
+			name: "use tls root ca certificate for grpc",
+			want: true,
+			config: Config{
+				Enabled:          true,
+				Exporter:         OTLPgRPCExporter,
+				Endpoint:         "localhost:4717",
+				Service:          "test",
+				InstanceID:       "s01",
+				Version:          "v1.0.0",
+				ServerCaCertPool: readCertPoolByPath(t, "../testdata/tracing/valid_google_globalsign_r4_rsa_root_ca.pem"),
+			},
+			other: Config{
+				Enabled:          true,
+				Exporter:         OTLPgRPCExporter,
+				Endpoint:         "localhost:4717",
+				Service:          "test",
+				InstanceID:       "s01",
+				Version:          "v1.0.0",
+				ServerCaCertPool: readCertPoolByPath(t, "../testdata/tracing/valid_google_gts_r4_ecdsa_root_ca.pem"),
+			},
+		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
@ -241,3 +267,12 @@ func TestConfig_hasChange(t *testing.T) {
 		})
 	}
 }
+
+func readCertPoolByPath(t *testing.T, path string) *x509.CertPool {
+	ca, err := os.ReadFile(path)
+	require.NoError(t, err)
+	roots := x509.NewCertPool()
+	ok := roots.AppendCertsFromPEM(ca)
+	require.True(t, ok)
+	return roots
+}
--- a/tracing/examples/grpc/main.go
+++ b/tracing/examples/grpc/main.go
@ -79,8 +79,7 @@ func main() {

 	time.Sleep(1 * time.Second)

-	cc, err := grpc.DialContext(ctx,
-		":7000",
+	cc, err := grpc.NewClient(":7000",
 		grpc.WithTransportCredentials(insecure.NewCredentials()),
 		grpc.WithChainUnaryInterceptor(
 			tracing_grpc.NewUnaryClientInteceptor(),
--- a/tracing/grpc/client.go
+++ b/tracing/grpc/client.go
@ -2,7 +2,10 @@ package grpc

 import (
 	"context"
+	"fmt"

+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/trace"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/metadata"
 )
@ -10,14 +13,16 @@ import (
 type clientStream struct {
 	originalStream grpc.ClientStream
 	desc           *grpc.StreamDesc
+	span           trace.Span
 	finished       chan<- error
 	done           <-chan struct{}
 }

-func newgRPCClientStream(originalStream grpc.ClientStream, desc *grpc.StreamDesc, finished chan<- error, done <-chan struct{}) grpc.ClientStream {
+func newgRPCClientStream(originalStream grpc.ClientStream, desc *grpc.StreamDesc, span trace.Span, finished chan<- error, done <-chan struct{}) grpc.ClientStream {
 	return &clientStream{
 		originalStream: originalStream,
 		desc:           desc,
+		span:           span,
 		finished:       finished,
 		done:           done,
 	}
@ -39,6 +44,7 @@ func (cs *clientStream) Trailer() metadata.MD {
 }

 func (cs *clientStream) CloseSend() error {
+	cs.span.AddEvent("client.stream.close.send.start")
 	err := cs.originalStream.CloseSend()
 	if err != nil {
 		select {
@ -46,6 +52,7 @@ func (cs *clientStream) CloseSend() error {
 		case cs.finished <- err:
 		}
 	}
+	cs.span.AddEvent("client.stream.close.send.finish")
 	return err
 }

@ -54,6 +61,9 @@ func (cs *clientStream) Context() context.Context {
 }

 func (cs *clientStream) SendMsg(m any) error {
+	cs.span.AddEvent("client.stream.send.msg.start", trace.WithAttributes(
+		attribute.String("message.type", fmt.Sprintf("%T", m))),
+	)
 	err := cs.originalStream.SendMsg(m)
 	if err != nil {
 		select {
@ -61,10 +71,16 @@ func (cs *clientStream) SendMsg(m any) error {
 		case cs.finished <- err:
 		}
 	}
+	cs.span.AddEvent("client.stream.send.msg.finish", trace.WithAttributes(
+		attribute.String("message.type", fmt.Sprintf("%T", m))),
+	)
 	return err
 }

 func (cs *clientStream) RecvMsg(m any) error {
+	cs.span.AddEvent("client.stream.receive.msg.start", trace.WithAttributes(
+		attribute.String("message.type", fmt.Sprintf("%T", m))),
+	)
 	err := cs.originalStream.RecvMsg(m)
 	if err != nil || !cs.desc.ServerStreams {
 		select {
@ -72,5 +88,8 @@ func (cs *clientStream) RecvMsg(m any) error {
 		case cs.finished <- err:
 		}
 	}
+	cs.span.AddEvent("client.stream.receive.msg.finish", trace.WithAttributes(
+		attribute.String("message.type", fmt.Sprintf("%T", m))),
+	)
 	return err
 }
--- a/tracing/grpc/interceptors.go
+++ b/tracing/grpc/interceptors.go
@ -50,7 +50,7 @@ func NewStreamClientInterceptor() grpc.StreamClientInterceptor {

 		finished := make(chan error)
 		done := make(chan struct{})
-		strWrp := newgRPCClientStream(str, desc, finished, done)
+		strWrp := newgRPCClientStream(str, desc, span, finished, done)

 		go func() {
 			defer close(done)
@ -107,7 +107,7 @@ func NewStreamServerInterceptor() grpc.StreamServerInterceptor {
 			trace.WithSpanKind(trace.SpanKindServer))
 		defer span.End()

-		err := handler(srv, newgRPCServerStream(ctx, ss))
+		err := handler(srv, newgRPCServerStream(ctx, ss, span))

 		setGRPCSpanStatus(span, err)
 		return err
--- a/tracing/grpc/server.go
+++ b/tracing/grpc/server.go
@ -2,7 +2,10 @@ package grpc

 import (
 	"context"
+	"fmt"

+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/trace"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/metadata"
 )
@ -10,12 +13,14 @@ import (
 type serverStream struct {
 	originalStream grpc.ServerStream
 	ctx            context.Context // nolint:containedctx
+	span           trace.Span
 }

-func newgRPCServerStream(ctx context.Context, originalStream grpc.ServerStream) grpc.ServerStream {
+func newgRPCServerStream(ctx context.Context, originalStream grpc.ServerStream, span trace.Span) grpc.ServerStream {
 	return &serverStream{
 		originalStream: originalStream,
 		ctx:            ctx,
+		span:           span,
 	}
 }

@ -36,9 +41,23 @@ func (ss *serverStream) Context() context.Context {
 }

 func (ss *serverStream) SendMsg(m any) error {
-	return ss.originalStream.SendMsg(m)
+	ss.span.AddEvent("server.stream.send.msg.start", trace.WithAttributes(
+		attribute.String("message.type", fmt.Sprintf("%T", m))),
+	)
+	err := ss.originalStream.SendMsg(m)
+	ss.span.AddEvent("server.stream.send.msg.finish", trace.WithAttributes(
+		attribute.String("message.type", fmt.Sprintf("%T", m))),
+	)
+	return err
 }

 func (ss *serverStream) RecvMsg(m any) error {
-	return ss.originalStream.RecvMsg(m)
+	ss.span.AddEvent("server.stream.receive.msg.start", trace.WithAttributes(
+		attribute.String("message.type", fmt.Sprintf("%T", m))),
+	)
+	err := ss.originalStream.RecvMsg(m)
+	ss.span.AddEvent("server.stream.receive.msg.finish", trace.WithAttributes(
+		attribute.String("message.type", fmt.Sprintf("%T", m))),
+	)
+	return err
 }
--- a/tracing/propagator_test.go
+++ b/tracing/propagator_test.go
@ -2,8 +2,8 @@ package tracing

 import (
 	"context"
+	"crypto/rand"
 	"encoding/hex"
-	"math/rand"
 	"testing"

 	"github.com/stretchr/testify/require"
--- a/tracing/setup.go
+++ b/tracing/setup.go
@ -2,8 +2,9 @@ package tracing

 import (
 	"context"
+	"crypto/x509"
+	"errors"
 	"fmt"
-	"io"
 	"sync"
 	"sync/atomic"

@ -12,10 +13,16 @@ import (
 	"go.opentelemetry.io/otel/exporters/stdout/stdouttrace"
 	"go.opentelemetry.io/otel/sdk/resource"
 	sdktrace "go.opentelemetry.io/otel/sdk/trace"
+	"go.opentelemetry.io/otel/sdk/trace/tracetest"
 	semconv "go.opentelemetry.io/otel/semconv/v1.17.0"
 	"go.opentelemetry.io/otel/trace"
+	"go.opentelemetry.io/otel/trace/noop"
+	"google.golang.org/grpc/credentials"
 )

+// ErrEmptyServerRootCaPool indicates that cert pool is empty and does not have any certificates inside.
+var ErrEmptyServerRootCaPool = errors.New("empty server root ca cert pool")
+
 var (
 	// tracingLock protects provider, done, config and tracer from concurrent update.
 	// These fields change when the config is updated or the application is shutdown.
@ -49,7 +56,7 @@ func Setup(ctx context.Context, cfg Config) (bool, error) {

 	if !cfg.Enabled {
 		config = cfg
-		tracer.Store(&tracerHolder{Tracer: trace.NewNoopTracerProvider().Tracer("")})
+		tracer.Store(&tracerHolder{Tracer: noop.NewTracerProvider().Tracer("")})
 		return true, flushAndShutdown(ctx)
 	}

@ -95,14 +102,14 @@ func Shutdown(ctx context.Context) error {
 	done = true

 	config = Config{}
-	tracer.Store(&tracerHolder{Tracer: trace.NewNoopTracerProvider().Tracer("")})
+	tracer.Store(&tracerHolder{Tracer: noop.NewTracerProvider().Tracer("")})

 	return flushAndShutdown(ctx)
 }

 func getDefaultTracer() *atomic.Pointer[tracerHolder] {
 	v := new(atomic.Pointer[tracerHolder])
-	v.Store(&tracerHolder{Tracer: trace.NewNoopTracerProvider().Tracer("")})
+	v.Store(&tracerHolder{Tracer: noop.NewTracerProvider().Tracer("")})
 	return v
 }

@ -132,9 +139,16 @@ func getExporter(ctx context.Context, cfg *Config) (sdktrace.SpanExporter, error
 	case StdoutExporter:
 		return stdouttrace.New()
 	case NoOpExporter:
-		return stdouttrace.New(stdouttrace.WithWriter(io.Discard))
+		return tracetest.NewNoopExporter(), nil
 	case OTLPgRPCExporter:
-		return otlptracegrpc.New(ctx, otlptracegrpc.WithEndpoint(cfg.Endpoint), otlptracegrpc.WithInsecure())
+		securityOption := otlptracegrpc.WithInsecure()
+		if cfg.ServerCaCertPool != nil {
+			if cfg.ServerCaCertPool.Equal(x509.NewCertPool()) {
+				return nil, fmt.Errorf("failed to setup tracing: %w", ErrEmptyServerRootCaPool)
+			}
+			securityOption = otlptracegrpc.WithTLSCredentials(credentials.NewClientTLSFromCert(cfg.ServerCaCertPool, ""))
+		}
+		return otlptracegrpc.New(ctx, otlptracegrpc.WithEndpoint(cfg.Endpoint), securityOption)
 	}
 }

@ -148,6 +162,9 @@ func newResource(cfg *Config) *resource.Resource {
 	if len(cfg.InstanceID) > 0 {
 		attrs = append(attrs, semconv.ServiceInstanceID(cfg.InstanceID))
 	}
+	for k, v := range cfg.Attributes {
+		attrs = append(attrs, attribute.String(k, v))
+	}
 	return resource.NewWithAttributes(
 		semconv.SchemaURL,
 		attrs...,
--- a/tracing/setup_test.go
+++ b/tracing/setup_test.go
@ -0,0 +1,118 @@
+package tracing_test
+
+import (
+	"context"
+	"crypto/x509"
+	"os"
+	"testing"
+
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
+	"github.com/stretchr/testify/require"
+)
+
+func TestSetup(t *testing.T) {
+	tests := []struct {
+		name   string
+		config tracing.Config
+		want   bool
+		expErr error
+	}{
+		{
+			name: "setup stdout exporter",
+			config: tracing.Config{
+				Enabled:  true,
+				Exporter: tracing.StdoutExporter,
+				Service:  "service-name",
+			},
+			want:   true,
+			expErr: nil,
+		},
+		{
+			name: "setup noop exporter",
+			config: tracing.Config{
+				Enabled:  true,
+				Exporter: tracing.NoOpExporter,
+				Service:  "service-name",
+			},
+
+			want:   true,
+			expErr: nil,
+		},
+		{
+			name: "setup otlp_grpc insecure exporter",
+			config: tracing.Config{
+				Enabled:  true,
+				Exporter: tracing.OTLPgRPCExporter,
+				Service:  "service-name",
+				Endpoint: "test-endpoint.com:4317",
+			},
+			want:   true,
+			expErr: nil,
+		},
+		{
+			name: "setup otlp_grpc secure exporter with valid rsa root ca certificate",
+			config: tracing.Config{
+				Enabled:          true,
+				Exporter:         tracing.OTLPgRPCExporter,
+				Service:          "service-name",
+				Endpoint:         "test-endpoint.com:4317",
+				ServerCaCertPool: readCertPoolByPath(t, "../testdata/tracing/valid_google_globalsign_r4_rsa_root_ca.pem"),
+			},
+			want:   true,
+			expErr: nil,
+		},
+		{
+			name: "setup otlp_grpc secure exporter with valid ecdsa root ca certificate",
+			config: tracing.Config{
+				Enabled:          true,
+				Exporter:         tracing.OTLPgRPCExporter,
+				Service:          "service-name",
+				Endpoint:         "test-endpoint.com:4317",
+				ServerCaCertPool: readCertPoolByPath(t, "../testdata/tracing/valid_google_gts_r4_ecdsa_root_ca.pem"),
+			},
+			want:   true,
+			expErr: nil,
+		},
+		{
+			name: "setup otlp_grpc secure exporter with invalid root ca certificate",
+			config: tracing.Config{
+				Enabled:          true,
+				Exporter:         tracing.OTLPgRPCExporter,
+				Service:          "service-name",
+				Endpoint:         "test-endpoint.com:4317",
+				ServerCaCertPool: readCertPoolByPath(t, "../testdata/tracing/invalid_root_ca.pem"),
+			},
+			want:   false,
+			expErr: tracing.ErrEmptyServerRootCaPool,
+		},
+		{
+			name: "setup otlp_grpc secure exporter with empty root ca certificate",
+			config: tracing.Config{
+				Enabled:          true,
+				Exporter:         tracing.OTLPgRPCExporter,
+				Service:          "service-name",
+				Endpoint:         "test-endpoint.com:4317",
+				ServerCaCertPool: readCertPoolByPath(t, "../testdata/tracing/invalid_empty_root_ca.pem"),
+			},
+			want:   false,
+			expErr: tracing.ErrEmptyServerRootCaPool,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := tracing.Setup(context.Background(), tt.config)
+			require.ErrorIs(t, err, tt.expErr)
+			if got != tt.want {
+				t.Errorf("Setup config = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func readCertPoolByPath(t *testing.T, path string) *x509.CertPool {
+	ca, err := os.ReadFile(path)
+	require.NoError(t, err)
+	roots := x509.NewCertPool()
+	_ = roots.AppendCertsFromPEM(ca)
+	return roots
+}
Author	SHA1	Message	Date
Roman Loginov	37bd758211	[#15 ] tracing: Add events for grpc stream calls Signed-off-by: Roman Loginov <r.loginov@yadro.com>	2024-11-25 16:38:52 +03:00
Dmitrii Stepanov	f17779933e	[#17 ] config: Add resource attributes Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>	2024-11-12 11:23:07 +03:00
Vitaliy Potyarkin	486af9e0d8	[#11 ] Add license and README (close #11) Signed-off-by: Vitaliy Potyarkin <v.potyarkin@yadro.com>	2024-11-08 15:06:58 +03:00
Aleksey Savaitan	666d326cc5	[#13 ] support tls over grpc for otlp_grpc exporter type Signed-off-by: Aleksey Savaitan <a.savaitan@yadro.com>	2024-09-09 14:43:14 +03:00
Evgenii Stratonikov	6dd265d949	[#12 ] tracing: Optimize noop exporter Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>	2024-07-05 10:37:41 +03:00
Evgenii Stratonikov	cb37f5975e	[#12 ] go.mod: Update otel dependencies Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>	2024-07-05 10:37:40 +03:00
Evgenii Stratonikov	4516209806	[#12 ] go.mod: Bump go version to 1.21 Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>	2024-07-05 10:35:11 +03:00
Evgenii Stratonikov	07d955b1d0	[#12 ] pre-commit: Use cached tests in hook Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>	2024-07-05 10:27:32 +03:00
Evgenii Stratonikov	3b672cf19e	[#12 ] Makefile: Allow to override testflags Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>	2024-07-05 10:27:32 +03:00
Evgenii Stratonikov	7a48a24c2a	[#12 ] pre-commit: Remove gitlint Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>	2024-07-05 10:27:32 +03:00
Evgenii Stratonikov	c094f8ec89	[#12 ] .golangci.yml: Reenable deprecated warnings Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>	2024-07-05 10:27:32 +03:00
Evgenii Stratonikov	f73432edd6	[#12 ] Makefile: Update golanci-lint to v1.59.1 Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>	2024-07-05 10:27:32 +03:00
Evgenii Stratonikov	44b526aaf8	[#12 ] go.mod: Tidy modules Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>	2024-07-05 10:27:32 +03:00