Merge pull request #330 from saku3/support-structured-logging

Support structured logging
kubernetes-csi · Nov 1, 2023 · 16dc1c4 · 16dc1c4
2 parents 35392a4 + 1e9b0ad
commit 16dc1c4
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Showing 123 changed files with 13,109 additions and 69 deletions.
diff --git a/cmd/csi-resizer/main.go b/cmd/csi-resizer/main.go
@@ -44,6 +44,11 @@ import (
 	"k8s.io/client-go/informers"
 	cflag "k8s.io/component-base/cli/flag"
 	"k8s.io/klog/v2"
+
+	"k8s.io/component-base/featuregate"
+	"k8s.io/component-base/logs"
+	logsapi "k8s.io/component-base/logs/api/v1"
+	_ "k8s.io/component-base/logs/json/register"
 )
 
 var (
@@ -82,26 +87,34 @@ var (
 
 func main() {
 	flag.Var(cflag.NewMapStringBool(&featureGates), "feature-gates", "A set of key=value paris that describe feature gates for alpha/experimental features for csi external resizer."+"Options are:\n"+strings.Join(utilfeature.DefaultFeatureGate.KnownFeatures(), "\n"))
-	klog.InitFlags(nil)
-	flag.Set("logtostderr", "true")
+	fg := featuregate.NewFeatureGate()
+	logsapi.AddFeatureGates(fg)
+	c := logsapi.NewLoggingConfiguration()
+	logsapi.AddGoFlags(c, flag.CommandLine)
+	logs.InitLogs()
 	flag.Parse()
+	if err := logsapi.ValidateAndApply(c, fg); err != nil {
+		klog.ErrorS(err, "LoggingConfiguration is invalid")
+		klog.FlushAndExit(klog.ExitFlushTimeout, 1)
+	}
 
 	if *showVersion {
 		fmt.Println(os.Args[0], version)
 		os.Exit(0)
 	}
-	klog.Infof("Version : %s", version)
+	klog.InfoS("Version", "version", version)
 
 	if *metricsAddress != "" && *httpEndpoint != "" {
-		klog.Error("only one of `--metrics-address` and `--http-endpoint` can be set.")
-		os.Exit(1)
+		klog.ErrorS(nil, "Only one of `--metrics-address` and `--http-endpoint` can be set.")
+		klog.FlushAndExit(klog.ExitFlushTimeout, 1)
 	}
 	addr := *metricsAddress
 	if addr == "" {
 		addr = *httpEndpoint
 	}
 	if err := utilfeature.DefaultMutableFeatureGate.SetFromMap(featureGates); err != nil {
-		klog.Fatal(err)
+		klog.ErrorS(err, "Failed to set feature gates")
+		klog.FlushAndExit(klog.ExitFlushTimeout, 1)
 	}
 
 	var config *rest.Config
@@ -112,15 +125,17 @@ func main() {
 		config, err = rest.InClusterConfig()
 	}
 	if err != nil {
-		klog.Fatal(err.Error())
+		klog.ErrorS(err, "Failed to create cluster config")
+		klog.FlushAndExit(klog.ExitFlushTimeout, 1)
 	}
 
 	config.QPS = float32(*kubeAPIQPS)
 	config.Burst = *kubeAPIBurst
 
 	kubeClient, err := kubernetes.NewForConfig(config)
 	if err != nil {
-		klog.Fatal(err.Error())
+		klog.ErrorS(err, "Failed to create kube client")
+		klog.FlushAndExit(klog.ExitFlushTimeout, 1)
 	}
 
 	informerFactory := informers.NewSharedInformerFactory(kubeClient, *resyncPeriod)
@@ -131,21 +146,24 @@ func main() {
 
 	csiClient, err := csi.New(*csiAddress, *timeout, metricsManager)
 	if err != nil {
-		klog.Fatal(err.Error())
+		klog.ErrorS(err, "Failed to create CSI client")
+		klog.FlushAndExit(klog.ExitFlushTimeout, 1)
 	}
 
 	driverName, err := getDriverName(csiClient, *timeout)
 	if err != nil {
-		klog.Fatal(fmt.Errorf("get driver name failed: %v", err))
+		klog.ErrorS(err, "Get driver name failed")
+		klog.FlushAndExit(klog.ExitFlushTimeout, 1)
 	}
-	klog.V(2).Infof("CSI driver name: %q", driverName)
+	klog.V(2).InfoS("CSI driver name", "driverName", driverName)
 
 	translator := csitrans.New()
 	if translator.IsMigratedCSIDriverByName(driverName) {
 		metricsManager = metrics.NewCSIMetricsManagerWithOptions(driverName, metrics.WithMigration())
 		migratedCsiClient, err := csi.New(*csiAddress, *timeout, metricsManager)
 		if err != nil {
-			klog.Fatal(err.Error())
+			klog.ErrorS(err, "Failed to create MigratedCSI client")
+			klog.FlushAndExit(klog.ExitFlushTimeout, 1)
 		}
 		csiClient.CloseConnection()
 		csiClient = migratedCsiClient
@@ -158,18 +176,20 @@ func main() {
 		informerFactory,
 		driverName)
 	if err != nil {
-		klog.Fatal(err.Error())
+		klog.ErrorS(err, "Failed to create CSI resizer")
+		klog.FlushAndExit(klog.ExitFlushTimeout, 1)
 	}
 
 	// Start HTTP server for metrics + leader election healthz
 	if addr != "" {
 		metricsManager.RegisterToServer(mux, *metricsPath)
 		metricsManager.SetDriverName(driverName)
 		go func() {
-			klog.Infof("ServeMux listening at %q", addr)
+			klog.InfoS("ServeMux listening", "address", addr)
 			err := http.ListenAndServe(addr, mux)
 			if err != nil {
-				klog.Fatalf("Failed to start HTTP server at specified address (%q) and metrics path (%q): %s", addr, *metricsPath, err)
+				klog.ErrorS(err, "Failed to start HTTP server", "address", addr, "metricsPath", *metricsPath)
+				klog.FlushAndExit(klog.ExitFlushTimeout, 1)
 			}
 		}()
 	}
@@ -190,7 +210,8 @@ func main() {
 		lockName := "external-resizer-" + util.SanitizeName(resizerName)
 		leKubeClient, err := kubernetes.NewForConfig(config)
 		if err != nil {
-			klog.Fatal(err.Error())
+			klog.ErrorS(err, "Failed to create leKubeClient")
+			klog.FlushAndExit(klog.ExitFlushTimeout, 1)
 		}
 		le := leaderelection.NewLeaderElection(leKubeClient, lockName, run)
 		if *httpEndpoint != "" {
@@ -206,7 +227,8 @@ func main() {
 		le.WithRetryPeriod(*leaderElectionRetryPeriod)
 
 		if err := le.Run(); err != nil {
-			klog.Fatalf("error initializing leader election: %v", err)
+			klog.ErrorS(err, "Error initializing leader election")
+			klog.FlushAndExit(klog.ExitFlushTimeout, 1)
 		}
 	}
 }

diff --git a/go.mod b/go.mod
@@ -29,6 +29,7 @@ require (
 	github.com/evanphx/json-patch v5.6.0+incompatible // indirect
 	github.com/go-logr/logr v1.2.4 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/go-logr/zapr v1.2.3 // indirect
 	github.com/go-openapi/jsonpointer v0.19.6 // indirect
 	github.com/go-openapi/jsonreference v0.20.2 // indirect
 	github.com/go-openapi/swag v0.22.3 // indirect
@@ -57,6 +58,9 @@ require (
 	go.opentelemetry.io/otel v1.15.0 // indirect
 	go.opentelemetry.io/otel/metric v0.38.0 // indirect
 	go.opentelemetry.io/otel/trace v1.15.0 // indirect
+	go.uber.org/atomic v1.10.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	go.uber.org/zap v1.19.0 // indirect
 	golang.org/x/net v0.17.0 // indirect
 	golang.org/x/sys v0.13.0 // indirect
 	golang.org/x/text v0.13.0 // indirect

diff --git a/go.sum b/go.sum
@@ -1,5 +1,7 @@
 cloud.google.com/go/compute v1.21.0 h1:JNBsyXVoOoNJtTQcnEY5uYpZIbeCTYIeDe0Xh1bySMk=
 cloud.google.com/go/compute/metadata v0.2.3 h1:mg4jlk7mCAj6xXp9UJ4fjI9VUI5rubuGBW5aJ7UnBMY=
+github.com/benbjohnson/clock v1.1.0 h1:Q92kusRqC1XV2MjkWETPvjJVqKetz1OzxZB7mHJLju8=
+github.com/benbjohnson/clock v1.1.0/go.mod h1:J11/hYXuz8f4ySSvYwY0FKfm+ezbsZBKZxNJlLklBHA=
 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/blang/semver/v4 v4.0.0 h1:1PFHFE6yCCTv8C1TeyNNarDzntLi7wMI5i/pzqYIsAM=
@@ -25,6 +27,8 @@ github.com/go-logr/logr v1.2.4 h1:g01GSCwiDw2xSZfjJ2/T9M+S6pFdcNtFYsp+Y43HYDQ=
 github.com/go-logr/logr v1.2.4/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
+github.com/go-logr/zapr v1.2.3 h1:a9vnzlIBPQBBkeaR9IuMUfmVOrQlkoC4YfPoFkX3T7A=
+github.com/go-logr/zapr v1.2.3/go.mod h1:eIauM6P8qSvTw5o2ez6UEAfGjQKrxQTl5EoK+Qa2oG4=
 github.com/go-openapi/jsonpointer v0.19.6 h1:eCs3fxoIi3Wh6vtgmLTOjdhSpiqphQ+DaPn38N2ZdrE=
 github.com/go-openapi/jsonpointer v0.19.6/go.mod h1:osyAmYz/mB/C3I+WsTTSgw1ONzaLJoLCyoi6/zppojs=
 github.com/go-openapi/jsonreference v0.20.2 h1:3sVjiK66+uXK/6oQ8xgcRKcFgQ5KXa2KvnJRumpMGbE=
@@ -62,6 +66,7 @@ github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnr
 github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
 github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
+github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
@@ -83,6 +88,7 @@ github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 h1:C3w9PqII01/Oq
 github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822/go.mod h1:+n7T8mK8HuQTcFwEeznm/DIxMOiR9yIdICNftLE1DvQ=
 github.com/onsi/ginkgo/v2 v2.9.4 h1:xR7vG4IXt5RWx6FfIjyAtsoMAtnc3C/rFXBBd2AjZwE=
 github.com/onsi/gomega v1.27.6 h1:ENqfyGeS5AX/rlXDd/ETokDz93u0YufY1Pgxuy/PvWE=
+github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
@@ -105,6 +111,8 @@ github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
 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 v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
@@ -119,11 +127,23 @@ go.opentelemetry.io/otel/metric v0.38.0 h1:vv/Nv/44S3GzMMmeUhaesBKsAenE6xLkTVWL+
 go.opentelemetry.io/otel/metric v0.38.0/go.mod h1:uAtxN5hl8aXh5irD8afBtSwQU5Zjg64WWSz6KheZxBg=
 go.opentelemetry.io/otel/trace v1.15.0 h1:5Fwje4O2ooOxkfyqI/kJwxWotggDLix4BSAvpE1wlpo=
 go.opentelemetry.io/otel/trace v1.15.0/go.mod h1:CUsmE2Ht1CRkvE8OsMESvraoZrrcgD1J2W8GV1ev0Y4=
+go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
+go.uber.org/atomic v1.10.0 h1:9qC72Qh0+3MqyJbAn8YU5xVq1frD8bn3JtD2oXtafVQ=
+go.uber.org/atomic v1.10.0/go.mod h1:LUxbIzbOniOlMKjJjyPfpl4v+PKK2cNJn91OQbhoJI0=
+go.uber.org/goleak v1.1.10/go.mod h1:8a7PlsEVH3e/a/GLqe5IIrQx6GzcnRmZEufDUTk4A7A=
+go.uber.org/goleak v1.2.1 h1:NBol2c7O1ZokfZ0LEU9K6Whx/KnwvepVetCUhtKja4A=
+go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
+go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
+go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
+go.uber.org/zap v1.19.0 h1:mZQZefskPPCMIBCSEH0v2/iUqqLrYtaeqwD6FUGUnFE=
+go.uber.org/zap v1.19.0/go.mod h1:xg/QME4nWcxGxrpdeYfq7UvYrLh66cuVKdrbD1XF/NI=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 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/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
@@ -152,6 +172,8 @@ golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/time v0.3.0 h1:rg5rLMjNzMS1RkNLzCG38eapWhnYLFYXDXj2gOlr8j4=
 golang.org/x/time v0.3.0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
+golang.org/x/tools v0.0.0-20191108193012-7d206e10da11/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
@@ -171,15 +193,18 @@ google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQ
 google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
 google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 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=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/inf.v0 v0.9.1 h1:73M5CoZyi3ZLMOyDlQh031Cx6N9NDJ2Vvfl76EDAgDc=
 gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 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=
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