func (o *EndpointControllerOptions) AddFlags(fs *pflag.FlagSet) {
	if o == nil {
		return
	}

	fs.Int32Var(&o.ConcurrentEndpointSyncs, "concurrent-endpoint-syncs", o.ConcurrentEndpointSyncs, "The number of endpoint syncing operations that will be done concurrently. Larger number = faster endpoint updating, but more CPU (and network) load")

// EndpointSliceMirroringController.
type EndpointSliceMirroringControllerConfiguration struct {
	// mirroringConcurrentServiceEndpointSyncs is the number of service endpoint
	// syncing operations that will be done concurrently. Larger number = faster
	// endpoint slice updating, but more CPU (and network) load.
	MirroringConcurrentServiceEndpointSyncs int32

)

// EndpointControllerConfiguration contains elements describing EndpointController.
type EndpointControllerConfiguration struct {
	// concurrentEndpointSyncs is the number of endpoint syncing operations
	// that will be done concurrently. Larger number = faster endpoint updating,
	// but more CPU (and network) load.
	ConcurrentEndpointSyncs int32

	"istio.io/istio/pkg/monitoring"
)

var (
	clusterLabel = monitoring.CreateLabel("cluster")

	errorMetric = monitoring.NewSum(
		"controller_sync_errors_total",
		"Total number of errorMetric syncing controllers.",
	)

	mu       sync.RWMutex
	handlers = map[cluster.ID]cache.WatchErrorHandler{}
)

// ErrorHandlerForCluster fetches or creates an ErrorHandler that emits a metric

func (FakeManager) StopLivenessAndStartup(_ *v1.Pod) {}

// CleanupPods simulates cleaning up Pods.
func (FakeManager) CleanupPods(_ map[types.UID]sets.Empty) {}

// Start simulates start syncing the probe status
func (FakeManager) Start() {}

// UpdatePodStatus simulates updating the Pod Status.
func (FakeManager) UpdatePodStatus(_ *v1.Pod, podStatus *v1.PodStatus) {
	for i := range podStatus.ContainerStatuses {

	// Larger number = more responsive HPA processing, but more CPU (and network) load.
	ConcurrentHorizontalPodAutoscalerSyncs int32
	// horizontalPodAutoscalerSyncPeriod is the period for syncing the number of
	// pods in horizontal pod autoscaler.
	HorizontalPodAutoscalerSyncPeriod metav1.Duration
	// HorizontalPodAutoscalerDowncaleStabilizationWindow is a period for which autoscaler will look

			cc.enqueueCertificateRequest(obj)
		},
	})
	cc.csrLister = csrInformer.Lister()
	cc.csrsSynced = csrInformer.Informer().HasSynced
	return cc
}

// Run the main goroutine responsible for watching and syncing jobs.
func (cc *CertificateController) Run(ctx context.Context, workers int) {
	defer utilruntime.HandleCrash()
	defer cc.queue.ShutDown()

	logger := klog.FromContext(ctx)

)

// EndpointSliceControllerConfiguration contains elements describing
// EndpointSliceController.
type EndpointSliceControllerConfiguration struct {
	// concurrentServiceEndpointSyncs is the number of service endpoint syncing
	// operations that will be done concurrently. Larger number = faster
	// endpoint slice updating, but more CPU (and network) load.
	ConcurrentServiceEndpointSyncs int32

	"k8s.io/kubernetes/pkg/proxy/util/nfacct"
)

const kubeProxySubsystem = "kubeproxy"

var (
	// SyncProxyRulesLatency is the latency of one round of kube-proxy syncing proxy
	// rules. (With the iptables proxy, this includes both full and partial syncs.)
	SyncProxyRulesLatency = metrics.NewHistogram(
		&metrics.HistogramOpts{
			Subsystem:      kubeProxySubsystem,

func (o *NamespaceControllerOptions) AddFlags(fs *pflag.FlagSet) {
	if o == nil {
		return
	}

	fs.DurationVar(&o.NamespaceSyncPeriod.Duration, "namespace-sync-period", o.NamespaceSyncPeriod.Duration, "The period for syncing namespace life-cycle updates")