Merge pull request kubernetes-csi#1275 from AndrewSirenko/leader-metrics

Add leader election, work-queue, process, and Go runtime metrics

Author: k8s-ci-robot

CHANGELOG/CHANGELOG-3.0.md

@@ -20,7 +20,7 @@
 webhook server has been added. This server will perform additional validation (strict) which was not done during the beta release of volume snapshots. It will prevent the cluster from gaining (via create or update) invalid objects.
   2. The controller will label objects which fail the additional validation. The label "snapshot.storage.kubernetes.io/invalid-snapshot-content-resource" will be added to invalid VolumeSnapshotContent objects. The label "snapshot.storage.kubernetes.io/invalid-snapshot-resource" will be added to invalid VolumeSnapshot objects.
 
-  The combination of 1 and 2 will allow cluster admins to stop the increase of invalid objects, and provide a way to easily list all objects which currently fail the strict validation. It is the kubernets distribution and cluster admin's responsibility to install the webhook and to ensure all the invalid objects in the cluster have been deleted or fixed. See the KEP at https://github.com/kubernetes/enhancements/blob/master/keps/sig-storage/177-volume-snapshot/tighten-validation-webhook-crd.md ([#353](https://github.com/kubernetes-csi/external-snapshotter/pull/353), [@AndiLi99](https://github.com/AndiLi99))
+  The combination of 1 and 2 will allow cluster admins to stop the increase of invalid objects, and provide a way to easily list all objects which currently fail the strict validation. It is the kubernetes distribution and cluster admin's responsibility to install the webhook and to ensure all the invalid objects in the cluster have been deleted or fixed. See the KEP at https://github.com/kubernetes/enhancements/blob/master/keps/sig-storage/177-volume-snapshot/tighten-validation-webhook-crd.md ([#353](https://github.com/kubernetes-csi/external-snapshotter/pull/353), [@AndiLi99](https://github.com/AndiLi99))
 
 ### Snapshot Controller
 

cmd/csi-snapshotter/main.go

@@ -49,6 +49,9 @@ import (
 	controller "github.com/kubernetes-csi/external-snapshotter/v8/pkg/sidecar-controller"
 	"github.com/kubernetes-csi/external-snapshotter/v8/pkg/snapshotter"
 	utilflag "k8s.io/component-base/cli/flag"
+	"k8s.io/component-base/metrics/legacyregistry"
+	_ "k8s.io/component-base/metrics/prometheus/clientgo/leaderelection" // register leader election in the default legacy registry
+	_ "k8s.io/component-base/metrics/prometheus/workqueue"               // register work queues in the default legacy registry
 
 	clientset "github.com/kubernetes-csi/external-snapshotter/client/v8/clientset/versioned"
 	snapshotscheme "github.com/kubernetes-csi/external-snapshotter/client/v8/clientset/versioned/scheme"
@@ -201,6 +204,10 @@ func main() {
 
 	klog.V(2).Infof("CSI driver name: %q", driverName)
 
+	// Add default legacy registry so that metrics manager serves Go runtime and process metrics.
+	// Also registers the `k8s.io/component-base/` work queue and leader election metrics we anonymously import.
+	metricsManager.WithAdditionalRegistry(legacyregistry.DefaultGatherer)
+
 	// Prepare http endpoint for metrics + leader election healthz
 	mux := http.NewServeMux()
 	if addr != "" {

go.mod

@@ -1,12 +1,12 @@
 module github.com/kubernetes-csi/external-snapshotter/v8
 
-go 1.23.1
+go 1.23.6
 
 require (
 	github.com/container-storage-interface/spec v1.11.0
 	github.com/evanphx/json-patch v5.9.0+incompatible
 	github.com/golang/mock v1.6.0
-	github.com/kubernetes-csi/csi-lib-utils v0.20.0
+	github.com/kubernetes-csi/csi-lib-utils v0.21.0
 	github.com/kubernetes-csi/csi-test/v5 v5.3.1
 	github.com/kubernetes-csi/external-snapshotter/client/v8 v8.2.0
 	github.com/prometheus/client_golang v1.20.5
@@ -60,7 +60,7 @@ require (
 	go.opentelemetry.io/otel v1.33.0 // indirect
 	go.opentelemetry.io/otel/metric v1.33.0 // indirect
 	go.opentelemetry.io/otel/trace v1.33.0 // indirect
-	golang.org/x/net v0.32.0 // indirect
+	golang.org/x/net v0.33.0 // indirect
 	golang.org/x/oauth2 v0.24.0 // indirect
 	golang.org/x/sys v0.28.0 // indirect
 	golang.org/x/term v0.27.0 // indirect

go.sum

@@ -63,8 +63,8 @@ github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
-github.com/kubernetes-csi/csi-lib-utils v0.20.0 h1:JTvHRJugn+cByMnIU4nCnqPqOOUhuPzhlLqRvenwjDA=
-github.com/kubernetes-csi/csi-lib-utils v0.20.0/go.mod h1:3b/HFVURW11oxV/gUAKyhhkvFpxXO/zRdvh1wdEfCZY=
+github.com/kubernetes-csi/csi-lib-utils v0.21.0 h1:dUN/iIgXLucAxyML2iPyhniIlACQumIeAJmIzsMBddc=
+github.com/kubernetes-csi/csi-lib-utils v0.21.0/go.mod h1:ZCVRTYuup+bwX9tOeE5Q3LDw64QvltSwMUQ3M3g2T+Q=
 github.com/kubernetes-csi/csi-test/v5 v5.3.1 h1:Wiukp1In+kif+BFo6q2ExjgB+MbrAz4jZWzGfijypuY=
 github.com/kubernetes-csi/csi-test/v5 v5.3.1/go.mod h1:7hA2cSYJ6T8CraEZPA6zqkLZwemjBD54XAnPsPC3VpA=
 github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc=
@@ -138,8 +138,8 @@ golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLL
 golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
 golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
-golang.org/x/net v0.32.0 h1:ZqPmj8Kzc+Y6e0+skZsuACbx+wzMgo5MQsJh9Qd6aYI=
-golang.org/x/net v0.32.0/go.mod h1:CwU0IoeOlnQQWJ6ioyFrfRuomB8GKF6KbYXZVyeXNfs=
+golang.org/x/net v0.33.0 h1:74SYHlV8BIgHIFC/LrYkOGIwL19eTYXQ5wc6TBuO36I=
+golang.org/x/net v0.33.0/go.mod h1:HXLR5J+9DxmrqMwG9qjGCxZ+zKXxBru04zlTvWlWuN4=
 golang.org/x/oauth2 v0.24.0 h1:KTBBxWqUa0ykRPLtV69rRto9TLXcqYkeswu48x/gvNE=
 golang.org/x/oauth2 v0.24.0/go.mod h1:XYTD2NtWslqkgxebSiOHnXEap4TF09sJSc7H1sXbhtI=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=

release-tools/prow.sh

@@ -86,7 +86,7 @@ configvar CSI_PROW_BUILD_PLATFORMS "linux amd64 amd64; linux ppc64le ppc64le -pp
 # which is disabled with GOFLAGS=-mod=vendor).
 configvar GOFLAGS_VENDOR "$( [ -d vendor ] && echo '-mod=vendor' )" "Go flags for using the vendor directory"
 
-configvar CSI_PROW_GO_VERSION_BUILD "1.23.1" "Go version for building the component" # depends on component's source code
+configvar CSI_PROW_GO_VERSION_BUILD "1.23.6" "Go version for building the component" # depends on component's source code
 configvar CSI_PROW_GO_VERSION_E2E "" "override Go version for building the Kubernetes E2E test suite" # normally doesn't need to be set, see install_e2e
 configvar CSI_PROW_GO_VERSION_SANITY "${CSI_PROW_GO_VERSION_BUILD}" "Go version for building the csi-sanity test suite" # depends on CSI_PROW_SANITY settings below
 configvar CSI_PROW_GO_VERSION_KIND "${CSI_PROW_GO_VERSION_BUILD}" "Go version for building 'kind'" # depends on CSI_PROW_KIND_VERSION below