Make controller manager node monitor constant public

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

@@ -124,6 +124,9 @@ func NewCMServer() *CMServer {
 		MinResyncPeriod:                   12 * time.Hour,
 		RegisterRetryCount:                10,
 		PodEvictionTimeout:                5 * time.Minute,
+		NodeMonitorGracePeriod:            40 * time.Second,
+		NodeStartupGracePeriod:            60 * time.Second,
+		NodeMonitorPeriod:                 5 * time.Second,
 		ClusterName:                       "kubernetes",
 		TerminatedPodGCThreshold:          12500,
 		VolumeConfigFlags: VolumeConfigFlags{
@@ -204,13 +207,13 @@ func (s *CMServer) AddFlags(fs *pflag.FlagSet) {
 	fs.IntVar(&s.RegisterRetryCount, "register-retry-count", s.RegisterRetryCount, ""+
 		"The number of retries for initial node registration.  Retry interval equals node-sync-period.")
 	fs.MarkDeprecated("register-retry-count", "This flag is currently no-op and will be deleted.")
-	fs.DurationVar(&s.NodeMonitorGracePeriod, "node-monitor-grace-period", 40*time.Second,
+	fs.DurationVar(&s.NodeMonitorGracePeriod, "node-monitor-grace-period", s.NodeMonitorGracePeriod,
 		"Amount of time which we allow running Node to be unresponsive before marking it unhealty. "+
 			"Must be N times more than kubelet's nodeStatusUpdateFrequency, "+
 			"where N means number of retries allowed for kubelet to post node status.")
-	fs.DurationVar(&s.NodeStartupGracePeriod, "node-startup-grace-period", 60*time.Second,
+	fs.DurationVar(&s.NodeStartupGracePeriod, "node-startup-grace-period", s.NodeStartupGracePeriod,
 		"Amount of time which we allow starting Node to be unresponsive before marking it unhealty.")
-	fs.DurationVar(&s.NodeMonitorPeriod, "node-monitor-period", 5*time.Second,
+	fs.DurationVar(&s.NodeMonitorPeriod, "node-monitor-period", s.NodeMonitorPeriod,
 		"The period for syncing NodeStatus in NodeController.")
 	fs.StringVar(&s.ServiceAccountKeyFile, "service-account-private-key-file", s.ServiceAccountKeyFile, "Filename containing a PEM-encoded private RSA key used to sign service account tokens.")
 	fs.BoolVar(&s.EnableProfiling, "profiling", true, "Enable profiling via web interface host:port/debug/pprof/")