Merge branch '2053-go-client-name' into 'master'

Extract client name from Go GRPC client

Closes #2053

See merge request gitlab-org/gitaly!2152

5 files changed, 118 insertions, 40 deletions

diff --git a/changelogs/unreleased/2053-go-client-name.yml b/changelogs/unreleased/2053-go-client-name.yml
new file mode 100644
index 000000000..82bb96444
--- /dev/null
+++ b/changelogs/unreleased/2053-go-client-name.yml
@@ -0,0 +1,5 @@
+---
+title: Extract client name from Go GRPC client
+merge_request: 2152
+author:
+type: added
diff --git a/go.mod b/go.mod
index 067f4d24f..a9d8e7317 100644
--- a/go.mod
+++ b/go.mod
@@ -4,7 +4,7 @@ require (
 	github.com/BurntSushi/toml v0.3.1
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cloudflare/tableflip v0.0.0-20190329062924-8392f1641731
-	github.com/getsentry/sentry-go v0.3.0
+	github.com/getsentry/sentry-go v0.5.1
 	github.com/golang/protobuf v1.3.2
 	github.com/google/uuid v1.1.1
 	github.com/grpc-ecosystem/go-grpc-middleware v1.0.0
@@ -18,7 +18,7 @@ require (
 	github.com/sirupsen/logrus v1.4.2
 	github.com/stretchr/testify v1.4.0
 	github.com/tinylib/msgp v1.1.0 // indirect
-	gitlab.com/gitlab-org/labkit v0.0.0-20200327153541-fac94cb428e6
+	gitlab.com/gitlab-org/labkit v0.0.0-20200507062444-0149780c759d
 	golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e
 	golang.org/x/sys v0.0.0-20200113162924-86b910548bc1
 	google.golang.org/grpc v1.24.0
diff --git a/go.sum b/go.sum
index c46e84daa..ced17a5b1 100644
--- a/go.sum
+++ b/go.sum
@@ -17,18 +17,21 @@ cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2k
 cloud.google.com/go/storage v1.0.0 h1:VV2nUM3wwLLGh9lSABFgZMjInyUbJeaRSE64WuAIQ+4=
 cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
+github.com/AndreasBriese/bbloom v0.0.0-20190306092124-e2d15f34fcf9/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8=
 github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
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-github.com/Joker/hpp v0.0.0-20180418125244-6893e659854a/go.mod h1:MzD2WMdSxvbHw5fM/OXOFily/lipJWRc9C1px0Mt0ZE=
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 github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
-github.com/aymerick/raymond v2.0.2+incompatible/go.mod h1:osfaiScAUVup+UC9Nfq76eWqDhXlp+4UYaA8uhTBO6g=
+github.com/aymerick/raymond v2.0.3-0.20180322193309-b565731e1464+incompatible/go.mod h1:osfaiScAUVup+UC9Nfq76eWqDhXlp+4UYaA8uhTBO6g=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973 h1:xJ4a3vCFaGF/jqvzLMYoU8P317H5OQ+Via4RmuPwCS0=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.0 h1:HWo1m869IqiPhD389kmkxeTalrjNbbJTC8LXupb+sl0=
@@ -57,17 +60,22 @@ github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSs
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+github.com/dgraph-io/badger v1.6.0/go.mod h1:zwt7syl517jmP8s94KqSxTlM6IMsdhYy6psNgSztDR4=
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+github.com/dgryski/go-farm v0.0.0-20190423205320-6a90982ecee2/go.mod h1:SqUrOPUnsFjfmXRMNPybcSiG0BgUW2AuFH8PAnS2iTw=
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 github.com/gin-contrib/sse v0.0.0-20190301062529-5545eab6dad3/go.mod h1:VJ0WA2NBN22VlZ2dKZQPAPnyWw5XTlK1KymzLKsr59s=
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@@ -89,6 +97,9 @@ github.com/gobuffalo/packd v0.3.0 h1:eMwymTkA1uXsqxS0Tpoop3Lc0u3kTfiMBE6nKtQU4g4
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+github.com/gobwas/httphead v0.0.0-20180130184737-2c6c146eadee/go.mod h1:L0fX3K22YWvt/FAX9NnzrNzcI4wNYi9Yku4O0LKYflo=
+github.com/gobwas/pool v0.2.0/go.mod h1:q8bcK0KcYlCgd9e7WYLm9LpyS+YeLd8JVDW6WezmKEw=
+github.com/gobwas/ws v1.0.2/go.mod h1:szmBTxLgaFppYjEmNtny/v3w89xOydFnnZMcgRRu/EM=
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@@ -106,6 +117,7 @@ github.com/golang/protobuf v1.3.1 h1:YF8+flBXS5eO826T4nzqPrxfhQThhXl0YzfuUPu4SBg
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@@ -126,13 +138,14 @@ github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+
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@@ -175,7 +190,7 @@ github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORN
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@@ -195,6 +210,8 @@ github.com/mattn/go-sqlite3 v1.12.0/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsO
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@@ -203,25 +220,24 @@ github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJ
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@@ -268,7 +284,7 @@ github.com/sirupsen/logrus v1.3.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPx
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@@ -293,15 +309,17 @@ github.com/uber/jaeger-client-go v2.15.0+incompatible/go.mod h1:WVhlPFC8FDjOFMMW
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@@ -309,8 +327,8 @@ github.com/yudai/golcs v0.0.0-20170316035057-ecda9a501e82/go.mod h1:lgjkn3NuSvDf
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@@ -354,13 +372,12 @@ golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzB
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
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@@ -368,6 +385,7 @@ golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859 h1:R/3boaszxrf1GEUWTVDzSKVwLmSJpwZ1yqXm8j0v2QI=
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 golang.org/x/net v0.0.0-20190724013045-ca1201d0de80/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200114155413-6afb5195e5aa h1:F+8P+gmewFQYRk6JoLQLwjBCTu3mcIURZfNkVweuRKA=
 golang.org/x/net v0.0.0-20200114155413-6afb5195e5aa/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
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@@ -403,6 +421,7 @@ golang.org/x/sys v0.0.0-20190507160741-ecd444e8653b/go.mod h1:h1NjWce9XRLGQEsW7w
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+golang.org/x/sys v0.0.0-20190626221950-04f50cda93cb/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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@@ -423,6 +442,7 @@ golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190312151545-0bb0c0a6e846/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190312170243-e65039ee4138/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
+golang.org/x/tools v0.0.0-20190327201419-c70d86f8b7cf/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190425150028-36563e24a262/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20190506145303-2d16b83fe98c/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
@@ -492,6 +512,7 @@ gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWD
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.5 h1:ymVxjfMaHvXD8RqPRmzHHsB3VvucivSkIAvJFDI5O3c=
 gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
diff --git a/internal/middleware/metadatahandler/metadatahandler.go b/internal/middleware/metadatahandler/metadatahandler.go
index c8c2aaa9e..d001df8c9 100644
--- a/internal/middleware/metadatahandler/metadatahandler.go
+++ b/internal/middleware/metadatahandler/metadatahandler.go
@@ -87,12 +87,6 @@ func addMetadataTags(ctx context.Context) metadataTags {
 		tags.Set(CallSiteKey, metadata)
 	}
 
-	metadata = getFromMD(md, "client_name")
-	if metadata != "" {
-		metaTags.clientName = metadata
-		tags.Set(ClientNameKey, metadata)
-	}
-
 	metadata = getFromMD(md, "deadline_type")
 	_, deadlineSet := ctx.Deadline()
 	if !deadlineSet {
@@ -101,6 +95,18 @@ func addMetadataTags(ctx context.Context) metadataTags {
 		metaTags.deadlineType = metadata
 	}
 
+	clientName := correlation.ExtractClientNameFromContext(ctx)
+	if clientName != "" {
+		metaTags.clientName = clientName
+		tags.Set(ClientNameKey, clientName)
+	} else {
+		metadata = getFromMD(md, "client_name")
+		if metadata != "" {
+			metaTags.clientName = metadata
+			tags.Set(ClientNameKey, metadata)
+		}
+	}
+
 	// Set the deadline type in the logs
 	tags.Set(DeadlineTypeKey, metaTags.deadlineType)
 
diff --git a/internal/middleware/metadatahandler/metadatahandler_test.go b/internal/middleware/metadatahandler/metadatahandler_test.go
index 82f266f38..ad3301cae 100644
--- a/internal/middleware/metadatahandler/metadatahandler_test.go
+++ b/internal/middleware/metadatahandler/metadatahandler_test.go
@@ -2,14 +2,22 @@ package metadatahandler
 
 import (
 	"context"
+	"fmt"
 	"testing"
 	"time"
 
+	grpc_ctxtags "github.com/grpc-ecosystem/go-grpc-middleware/tags"
 	"github.com/stretchr/testify/require"
 	"gitlab.com/gitlab-org/gitaly/internal/testhelper"
+	"gitlab.com/gitlab-org/labkit/correlation"
 	"google.golang.org/grpc/metadata"
 )
 
+const (
+	correlationID = "CORRELATION_ID"
+	clientName    = "CLIENT_NAME"
+)
+
 func TestAddMetadataTags(t *testing.T) {
 	baseContext, cancel := testhelper.Context()
 	defer cancel()
@@ -99,3 +107,41 @@ func TestAddMetadataTags(t *testing.T) {
 		})
 	}
 }
+
+func verifyHandler(ctx context.Context, req interface{}) (interface{}, error) {
+	require, ok := req.(*require.Assertions)
+	if !ok {
+		return nil, fmt.Errorf("unexpected type conversion failure")
+	}
+	metaTags := addMetadataTags(ctx)
+	require.Equal(clientName, metaTags.clientName)
+
+	tags := grpc_ctxtags.Extract(ctx)
+	require.True(tags.Has(CorrelationIDKey))
+	require.True(tags.Has(ClientNameKey))
+	values := tags.Values()
+	require.Equal(correlationID, values[CorrelationIDKey])
+	require.Equal(clientName, values[ClientNameKey])
+
+	return nil, nil
+}
+
+func TestGRPCTags(t *testing.T) {
+	require := require.New(t)
+
+	ctx := metadata.NewIncomingContext(
+		correlation.ContextWithCorrelation(
+			correlation.ContextWithClientName(
+				context.Background(),
+				clientName,
+			),
+			correlationID,
+		),
+		metadata.Pairs(),
+	)
+
+	interceptor := grpc_ctxtags.UnaryServerInterceptor()
+
+	_, err := interceptor(ctx, require, nil, verifyHandler)
+	require.NoError(err)
+}