Wire up feature_gate.go with metrics via AddMetrics method

wire up feature_gate.go with metrics via AddMetrics method

Change-Id: I9b4f6b04c0f4eb9bcb198b16284393d21c774ad8

wire in metrics to kubernetes components

Change-Id: I6d4ef8b26f149f62b03f32d1658f04f3056fe4dc

rename metric since we're using the value to determine if enabled is true or false

Change-Id: I13a6b6df90a5ffb4b9c5b34fa187562413bea029

Update staging/src/k8s.io/component-base/featuregate/feature_gate.go

Co-authored-by: Jordan Liggitt <jordan@liggitt.net>

cmd/kube-apiserver/app/server.go

@@ -127,7 +127,8 @@ cluster's shared state through which all other components interact.`,
 			if errs := completedOptions.Validate(); len(errs) != 0 {
 				return utilerrors.NewAggregate(errs)
 			}
-
+			// add feature enablement metrics
+			utilfeature.DefaultMutableFeatureGate.AddMetrics()
 			return Run(completedOptions, genericapiserver.SetupSignalHandler())
 		},
 		Args: func(cmd *cobra.Command, args []string) error {

cmd/kube-controller-manager/app/controllermanager.go

@@ -134,7 +134,8 @@ controller, and serviceaccounts controller.`,
 			if err != nil {
 				return err
 			}
-
+			// add feature enablement metrics
+			utilfeature.DefaultMutableFeatureGate.AddMetrics()
 			return Run(c.Complete(), wait.NeverStop)
 		},
 		Args: func(cmd *cobra.Command, args []string) error {

cmd/kube-proxy/app/server.go

@@ -484,7 +484,8 @@ with the apiserver API to configure the proxy.`,
 			if err := opts.Validate(); err != nil {
 				return fmt.Errorf("failed validate: %w", err)
 			}
-
+			// add feature enablement metrics
+			utilfeature.DefaultMutableFeatureGate.AddMetrics()
 			if err := opts.Run(); err != nil {
 				klog.ErrorS(err, "Error running ProxyServer")
 				return err

cmd/kube-scheduler/app/server.go

@@ -138,7 +138,8 @@ func runCommand(cmd *cobra.Command, opts *options.Options, registryOptions ...Op
 	if err != nil {
 		return err
 	}
-
+	// add feature enablement metrics
+	utilfeature.DefaultMutableFeatureGate.AddMetrics()
 	return Run(ctx, cc, sched)
 }
 

cmd/kubelet/app/server.go

@@ -269,6 +269,7 @@ HTTP server: The kubelet can also listen for HTTP and respond to a simple API
 			// set up signal context for kubelet shutdown
 			ctx := genericapiserver.SetupSignalContext()
 
+			utilfeature.DefaultMutableFeatureGate.AddMetrics()
 			// run the kubelet
 			return Run(ctx, kubeletServer, kubeletDeps, utilfeature.DefaultFeatureGate)
 		},