Multiple scheduler leader election support

plugin/cmd/kube-scheduler/app/options/options.go

@@ -72,6 +72,8 @@ func (s *SchedulerServer) AddFlags(fs *pflag.FlagSet) {
 	fs.Float32Var(&s.KubeAPIQPS, "kube-api-qps", s.KubeAPIQPS, "QPS to use while talking with kubernetes apiserver")
 	fs.Int32Var(&s.KubeAPIBurst, "kube-api-burst", s.KubeAPIBurst, "Burst to use while talking with kubernetes apiserver")
 	fs.StringVar(&s.SchedulerName, "scheduler-name", s.SchedulerName, "Name of the scheduler, used to select which pods will be processed by this scheduler, based on pod's \"spec.SchedulerName\".")
+	fs.StringVar(&s.LockObjectNamespace, "lock-object-namespace", s.LockObjectNamespace, "Define the namespace of the lock object.")
+	fs.StringVar(&s.LockObjectName, "lock-object-name", s.LockObjectName, "Define the name of the lock object.")
 	fs.IntVar(&s.HardPodAffinitySymmetricWeight, "hard-pod-affinity-symmetric-weight", api.DefaultHardPodAffinitySymmetricWeight,
 		"RequiredDuringScheduling affinity is not symmetric, but there is an implicit PreferredDuringScheduling affinity rule corresponding "+
 			"to every RequiredDuringScheduling affinity rule. --hard-pod-affinity-symmetric-weight represents the weight of implicit PreferredDuringScheduling affinity rule.")

plugin/cmd/kube-scheduler/app/server.go

@@ -113,8 +113,8 @@ func Run(s *options.SchedulerServer) error {
 	// TODO: enable other lock types
 	rl := &resourcelock.EndpointsLock{
 		EndpointsMeta: metav1.ObjectMeta{
-			Namespace: "kube-system",
-			Name:      "kube-scheduler",
+			Namespace: s.LockObjectNamespace,
+			Name:      s.LockObjectName,
 		},
 		Client: kubecli,
 		LockConfig: resourcelock.ResourceLockConfig{