Golang controller.NoResyncPeriodFunc函数代码示例

// issue: https://github.com/kubernetes/kubernetes/issues/23218
func TestDeploymentController_dontSyncDeploymentsWithEmptyPodSelector(t *testing.T) {
	fake := &fake.Clientset{}
	informers := informers.NewSharedInformerFactory(fake, nil, controller.NoResyncPeriodFunc())
	controller := NewDeploymentController(informers.Deployments(), informers.ReplicaSets(), informers.Pods(), fake)
	controller.eventRecorder = &record.FakeRecorder{}
	controller.dListerSynced = alwaysReady
	controller.rsListerSynced = alwaysReady
	controller.podListerSynced = alwaysReady

	stopCh := make(chan struct{})
	defer close(stopCh)
	informers.Start(stopCh)

	d := newDeployment("foo", 1, nil, nil, nil, map[string]string{"foo": "bar"})
	empty := metav1.LabelSelector{}
	d.Spec.Selector = &empty
	controller.dLister.Indexer.Add(d)
	// We expect the deployment controller to not take action here since it's configuration
	// is invalid, even though no replicasets exist that match it's selector.
	controller.syncDeployment(fmt.Sprintf("%s/%s", d.ObjectMeta.Namespace, d.ObjectMeta.Name))

	filteredActions := filterInformerActions(fake.Actions())
	if len(filteredActions) == 0 {
		return
	}
	for _, action := range filteredActions {
		t.Logf("unexpected action: %#v", action)
	}
	t.Errorf("expected deployment controller to not take action")
}

// NewclusterController returns a new cluster controller
func NewclusterController(federationClient federationclientset.Interface, clusterMonitorPeriod time.Duration) *ClusterController {
	cc := &ClusterController{
		knownClusterSet:         make(sets.String),
		federationClient:        federationClient,
		clusterMonitorPeriod:    clusterMonitorPeriod,
		clusterClusterStatusMap: make(map[string]federationv1beta1.ClusterStatus),
		clusterKubeClientMap:    make(map[string]ClusterClient),
	}
	cc.clusterStore.Store, cc.clusterController = cache.NewInformer(
		&cache.ListWatch{
			ListFunc: func(options v1.ListOptions) (runtime.Object, error) {
				return cc.federationClient.Federation().Clusters().List(options)
			},
			WatchFunc: func(options v1.ListOptions) (watch.Interface, error) {
				return cc.federationClient.Federation().Clusters().Watch(options)
			},
		},
		&federationv1beta1.Cluster{},
		controller.NoResyncPeriodFunc(),
		cache.ResourceEventHandlerFuncs{
			DeleteFunc: cc.delFromClusterSet,
			AddFunc:    cc.addToClusterSet,
		},
	)
	return cc
}

func NewPodGC(kubeClient clientset.Interface, podInformer cache.SharedIndexInformer, terminatedPodThreshold int) *PodGCController {
	if kubeClient != nil && kubeClient.Core().RESTClient().GetRateLimiter() != nil {
		metrics.RegisterMetricAndTrackRateLimiterUsage("gc_controller", kubeClient.Core().RESTClient().GetRateLimiter())
	}
	gcc := &PodGCController{
		kubeClient:             kubeClient,
		terminatedPodThreshold: terminatedPodThreshold,
		deletePod: func(namespace, name string) error {
			glog.Infof("PodGC is force deleting Pod: %v:%v", namespace, name)
			return kubeClient.Core().Pods(namespace).Delete(name, v1.NewDeleteOptions(0))
		},
	}

	gcc.podStore.Indexer = podInformer.GetIndexer()
	gcc.podController = podInformer.GetController()

	gcc.nodeStore.Store, gcc.nodeController = cache.NewInformer(
		&cache.ListWatch{
			ListFunc: func(options v1.ListOptions) (runtime.Object, error) {
				return gcc.kubeClient.Core().Nodes().List(options)
			},
			WatchFunc: func(options v1.ListOptions) (watch.Interface, error) {
				return gcc.kubeClient.Core().Nodes().Watch(options)
			},
		},
		&v1.Node{},
		controller.NoResyncPeriodFunc(),
		cache.ResourceEventHandlerFuncs{},
	)

	return gcc
}

func NewNodeControllerFromClient(
	cloud cloudprovider.Interface,
	kubeClient clientset.Interface,
	podEvictionTimeout time.Duration,
	evictionLimiterQPS float32,
	secondaryEvictionLimiterQPS float32,
	largeClusterThreshold int32,
	unhealthyZoneThreshold float32,
	nodeMonitorGracePeriod time.Duration,
	nodeStartupGracePeriod time.Duration,
	nodeMonitorPeriod time.Duration,
	clusterCIDR *net.IPNet,
	serviceCIDR *net.IPNet,
	nodeCIDRMaskSize int,
	allocateNodeCIDRs bool) (*NodeController, error) {
	podInformer := informers.NewPodInformer(kubeClient, controller.NoResyncPeriodFunc())
	nc, err := NewNodeController(podInformer, cloud, kubeClient, podEvictionTimeout, evictionLimiterQPS, secondaryEvictionLimiterQPS,
		largeClusterThreshold, unhealthyZoneThreshold, nodeMonitorGracePeriod, nodeStartupGracePeriod, nodeMonitorPeriod, clusterCIDR,
		serviceCIDR, nodeCIDRMaskSize, allocateNodeCIDRs)
	if err != nil {
		return nil, err
	}
	nc.internalPodInformer = podInformer
	return nc, nil
}

func New(routes cloudprovider.Routes, kubeClient clientset.Interface, clusterName string, clusterCIDR *net.IPNet) *RouteController {
	if kubeClient != nil && kubeClient.Core().RESTClient().GetRateLimiter() != nil {
		metrics.RegisterMetricAndTrackRateLimiterUsage("route_controller", kubeClient.Core().RESTClient().GetRateLimiter())
	}
	rc := &RouteController{
		routes:      routes,
		kubeClient:  kubeClient,
		clusterName: clusterName,
		clusterCIDR: clusterCIDR,
	}

	rc.nodeStore.Store, rc.nodeController = cache.NewInformer(
		&cache.ListWatch{
			ListFunc: func(options v1.ListOptions) (runtime.Object, error) {
				return rc.kubeClient.Core().Nodes().List(options)
			},
			WatchFunc: func(options v1.ListOptions) (watch.Interface, error) {
				return rc.kubeClient.Core().Nodes().Watch(options)
			},
		},
		&v1.Node{},
		controller.NoResyncPeriodFunc(),
		cache.ResourceEventHandlerFuncs{},
	)

	return rc
}

func NewFromClient(
	kubeClient clientset.Interface,
	terminatedPodThreshold int,
) *PodGCController {
	podInformer := informers.NewPodInformer(kubeClient, controller.NoResyncPeriodFunc())
	controller := NewPodGC(kubeClient, podInformer, terminatedPodThreshold)
	controller.internalPodInformer = podInformer
	return controller
}

func TestScaleDownOldReplicaSets(t *testing.T) {
	tests := []struct {
		oldRSSizes []int
		d          *extensions.Deployment
	}{
		{
			oldRSSizes: []int{3},
			d:          newDeployment("foo", 3, nil, nil, nil, map[string]string{"foo": "bar"}),
		},
	}

	for i := range tests {
		t.Logf("running scenario %d", i)
		test := tests[i]

		var oldRSs []*extensions.ReplicaSet
		var expected []runtime.Object

		for n, size := range test.oldRSSizes {
			rs := newReplicaSet(test.d, fmt.Sprintf("%s-%d", test.d.Name, n), size)
			oldRSs = append(oldRSs, rs)

			objCopy, err := api.Scheme.Copy(rs)
			if err != nil {
				t.Errorf("unexpected error while deep-copying: %v", err)
				continue
			}
			rsCopy := objCopy.(*extensions.ReplicaSet)

			zero := int32(0)
			rsCopy.Spec.Replicas = &zero
			expected = append(expected, rsCopy)

			if *(oldRSs[n].Spec.Replicas) == *(expected[n].(*extensions.ReplicaSet).Spec.Replicas) {
				t.Errorf("broken test - original and expected RS have the same size")
			}
		}

		kc := fake.NewSimpleClientset(expected...)
		informers := informers.NewSharedInformerFactory(kc, nil, controller.NoResyncPeriodFunc())
		c := NewDeploymentController(informers.Deployments(), informers.ReplicaSets(), informers.Pods(), kc)

		c.scaleDownOldReplicaSetsForRecreate(oldRSs, test.d)
		for j := range oldRSs {
			rs := oldRSs[j]

			if *rs.Spec.Replicas != 0 {
				t.Errorf("rs %q has non-zero replicas", rs.Name)
			}
		}
	}
}

func newTestController(initialObjects ...runtime.Object) (*DaemonSetsController, *controller.FakePodControl, *fake.Clientset) {
	clientset := fake.NewSimpleClientset(initialObjects...)
	informerFactory := informers.NewSharedInformerFactory(clientset, nil, controller.NoResyncPeriodFunc())

	manager := NewDaemonSetsController(informerFactory.DaemonSets(), informerFactory.Pods(), informerFactory.Nodes(), clientset, 0)

	manager.podStoreSynced = alwaysReady
	manager.nodeStoreSynced = alwaysReady
	manager.dsStoreSynced = alwaysReady
	podControl := &controller.FakePodControl{}
	manager.podControl = podControl
	return manager, podControl, clientset
}

func newTestController() (*DaemonSetsController, *controller.FakePodControl) {
	clientset := clientset.NewForConfigOrDie(&restclient.Config{Host: "", ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
	informerFactory := informers.NewSharedInformerFactory(clientset, controller.NoResyncPeriodFunc())

	manager := NewDaemonSetsController(informerFactory.DaemonSets(), informerFactory.Pods(), informerFactory.Nodes(), clientset, 0)
	informerFactory.Start(wait.NeverStop)

	manager.podStoreSynced = alwaysReady
	manager.nodeStoreSynced = alwaysReady
	podControl := &controller.FakePodControl{}
	manager.podControl = podControl
	return manager, podControl
}

func (f *fixture) run(deploymentName string) {
	f.client = fake.NewSimpleClientset(f.objects...)
	informers := informers.NewSharedInformerFactory(f.client, nil, controller.NoResyncPeriodFunc())
	c := NewDeploymentController(informers.Deployments(), informers.ReplicaSets(), informers.Pods(), f.client)
	c.eventRecorder = &record.FakeRecorder{}
	c.dListerSynced = alwaysReady
	c.rsListerSynced = alwaysReady
	c.podListerSynced = alwaysReady
	for _, d := range f.dLister {
		c.dLister.Indexer.Add(d)
	}
	for _, rs := range f.rsLister {
		c.rsLister.Indexer.Add(rs)
	}
	for _, pod := range f.podLister {
		c.podLister.Indexer.Add(pod)
	}
	stopCh := make(chan struct{})
	defer close(stopCh)
	informers.Start(stopCh)

	err := c.syncDeployment(deploymentName)
	if err != nil {
		f.t.Errorf("error syncing deployment: %v", err)
	}

	actions := filterInformerActions(f.client.Actions())
	for i, action := range actions {
		if len(f.actions) < i+1 {
			f.t.Errorf("%d unexpected actions: %+v", len(actions)-len(f.actions), actions[i:])
			break
		}

		expectedAction := f.actions[i]
		if !expectedAction.Matches(action.GetVerb(), action.GetResource().Resource) {
			f.t.Errorf("Expected\n\t%#v\ngot\n\t%#v", expectedAction, action)
			continue
		}
	}

	if len(f.actions) > len(actions) {
		f.t.Errorf("%d additional expected actions:%+v", len(f.actions)-len(actions), f.actions[len(actions):])
	}
}

func (f *fixture) newController() (*DeploymentController, informers.SharedInformerFactory) {
	f.client = fake.NewSimpleClientset(f.objects...)
	informers := informers.NewSharedInformerFactory(f.client, nil, controller.NoResyncPeriodFunc())
	c := NewDeploymentController(informers.Deployments(), informers.ReplicaSets(), informers.Pods(), f.client)
	c.eventRecorder = &record.FakeRecorder{}
	c.dListerSynced = alwaysReady
	c.rsListerSynced = alwaysReady
	c.podListerSynced = alwaysReady
	for _, d := range f.dLister {
		c.dLister.Indexer.Add(d)
	}
	for _, rs := range f.rsLister {
		c.rsLister.Indexer.Add(rs)
	}
	for _, pod := range f.podLister {
		c.podLister.Indexer.Add(pod)
	}
	return c, informers
}

func startComponents(firstManifestURL, secondManifestURL string) (string, string) {
	// Setup
	handler := delegateHandler{}
	apiServer := httptest.NewServer(&handler)

	cfg := etcd.Config{
		Endpoints: []string{"http://127.0.0.1:4001"},
	}
	etcdClient, err := etcd.New(cfg)
	if err != nil {
		glog.Fatalf("Error creating etcd client: %v", err)
	}
	glog.Infof("Creating etcd client pointing to %v", cfg.Endpoints)

	keysAPI := etcd.NewKeysAPI(etcdClient)
	sleep := 4 * time.Second
	ok := false
	for i := 0; i < 3; i++ {
		keys, err := keysAPI.Get(context.TODO(), "/", nil)
		if err != nil {
			glog.Warningf("Unable to list root etcd keys: %v", err)
			if i < 2 {
				time.Sleep(sleep)
				sleep = sleep * sleep
			}
			continue
		}
		for _, node := range keys.Node.Nodes {
			if _, err := keysAPI.Delete(context.TODO(), node.Key, &etcd.DeleteOptions{Recursive: true}); err != nil {
				glog.Fatalf("Unable delete key: %v", err)
			}
		}
		ok = true
		break
	}
	if !ok {
		glog.Fatalf("Failed to connect to etcd")
	}

	cl := client.NewOrDie(&restclient.Config{Host: apiServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
	clientset := clientset.NewForConfigOrDie(&restclient.Config{Host: apiServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})

	// TODO: caesarxuchao: hacky way to specify version of Experimental client.
	// We will fix this by supporting multiple group versions in Config
	cl.ExtensionsClient = client.NewExtensionsOrDie(&restclient.Config{Host: apiServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Extensions.GroupVersion()}})

	// Master
	host, port, err := net.SplitHostPort(strings.TrimLeft(apiServer.URL, "http://"))
	if err != nil {
		glog.Fatalf("Unable to parse URL '%v': %v", apiServer.URL, err)
	}
	portNumber, err := strconv.Atoi(port)
	if err != nil {
		glog.Fatalf("Nonnumeric port? %v", err)
	}

	publicAddress := net.ParseIP(host)
	if publicAddress == nil {
		glog.Fatalf("No public address for %s", host)
	}

	// The caller of master.New should guarantee pulicAddress is properly set
	hostIP, err := utilnet.ChooseBindAddress(publicAddress)
	if err != nil {
		glog.Fatalf("Unable to find suitable network address.error='%v' . "+
			"Fail to get a valid public address for master.", err)
	}

	masterConfig := framework.NewMasterConfig()
	masterConfig.EnableCoreControllers = true
	masterConfig.EnableProfiling = true
	masterConfig.ReadWritePort = portNumber
	masterConfig.PublicAddress = hostIP
	masterConfig.CacheTimeout = 2 * time.Second
	masterConfig.EnableWatchCache = watchCache

	// Create a master and install handlers into mux.
	m, err := master.New(masterConfig)
	if err != nil {
		glog.Fatalf("Error in bringing up the master: %v", err)
	}
	handler.delegate = m.Handler

	// Scheduler
	schedulerConfigFactory := factory.NewConfigFactory(cl, api.DefaultSchedulerName)
	schedulerConfig, err := schedulerConfigFactory.Create()
	if err != nil {
		glog.Fatalf("Couldn't create scheduler config: %v", err)
	}
	eventBroadcaster := record.NewBroadcaster()
	schedulerConfig.Recorder = eventBroadcaster.NewRecorder(api.EventSource{Component: api.DefaultSchedulerName})
	eventBroadcaster.StartLogging(glog.Infof)
	eventBroadcaster.StartRecordingToSink(cl.Events(""))
	scheduler.New(schedulerConfig).Run()

	podInformer := informers.CreateSharedPodInformer(clientset, controller.NoResyncPeriodFunc())

	// ensure the service endpoints are sync'd several times within the window that the integration tests wait
	go endpointcontroller.NewEndpointController(podInformer, clientset).
		Run(3, wait.NeverStop)
//.........这里部分代码省略.........

// NewclusterController returns a new cluster controller
func NewReplicaSetController(federationClient fedclientset.Interface) *ReplicaSetController {
	frsc := &ReplicaSetController{
		fedClient:           federationClient,
		replicasetDeliverer: fedutil.NewDelayingDeliverer(),
		clusterDeliverer:    fedutil.NewDelayingDeliverer(),
		replicasetWorkQueue: workqueue.New(),
		replicaSetBackoff:   flowcontrol.NewBackOff(5*time.Second, time.Minute),
		defaultPlanner: planner.NewPlanner(&fed.FederatedReplicaSetPreferences{
			Clusters: map[string]fed.ClusterReplicaSetPreferences{
				"*": {Weight: 1},
			},
		}),
	}

	replicaSetFedInformerFactory := func(cluster *fedv1.Cluster, clientset kubeclientset.Interface) (cache.Store, framework.ControllerInterface) {
		return framework.NewInformer(
			&cache.ListWatch{
				ListFunc: func(options api.ListOptions) (runtime.Object, error) {
					return clientset.Extensions().ReplicaSets(apiv1.NamespaceAll).List(options)
				},
				WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
					return clientset.Extensions().ReplicaSets(apiv1.NamespaceAll).Watch(options)
				},
			},
			&extensionsv1.ReplicaSet{},
			controller.NoResyncPeriodFunc(),
			fedutil.NewTriggerOnAllChanges(
				func(obj runtime.Object) { frsc.deliverLocalReplicaSet(obj, allReplicaSetReviewDealy) },
			),
		)
	}
	clusterLifecycle := fedutil.ClusterLifecycleHandlerFuncs{
		ClusterAvailable: func(cluster *fedv1.Cluster) {
			frsc.clusterDeliverer.DeliverAfter(allClustersKey, nil, clusterUnavailableDelay)
		},
		ClusterUnavailable: func(cluster *fedv1.Cluster, _ []interface{}) {
			frsc.clusterDeliverer.DeliverAfter(allClustersKey, nil, clusterUnavailableDelay)
		},
	}
	frsc.fedReplicaSetInformer = fedutil.NewFederatedInformer(federationClient, replicaSetFedInformerFactory, &clusterLifecycle)

	podFedInformerFactory := func(cluster *fedv1.Cluster, clientset kubeclientset.Interface) (cache.Store, framework.ControllerInterface) {
		return framework.NewInformer(
			&cache.ListWatch{
				ListFunc: func(options api.ListOptions) (runtime.Object, error) {
					return clientset.Core().Pods(apiv1.NamespaceAll).List(options)
				},
				WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
					return clientset.Core().Pods(apiv1.NamespaceAll).Watch(options)
				},
			},
			&apiv1.Pod{},
			controller.NoResyncPeriodFunc(),
			fedutil.NewTriggerOnAllChanges(
				func(obj runtime.Object) {
					frsc.clusterDeliverer.DeliverAfter(allClustersKey, nil, clusterUnavailableDelay)
				},
			),
		)
	}
	frsc.fedPodInformer = fedutil.NewFederatedInformer(federationClient, podFedInformerFactory, &fedutil.ClusterLifecycleHandlerFuncs{})

	frsc.replicaSetStore.Store, frsc.replicaSetController = framework.NewInformer(
		&cache.ListWatch{
			ListFunc: func(options api.ListOptions) (runtime.Object, error) {
				return frsc.fedClient.Extensions().ReplicaSets(apiv1.NamespaceAll).List(options)
			},
			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
				return frsc.fedClient.Extensions().ReplicaSets(apiv1.NamespaceAll).Watch(options)
			},
		},
		&extensionsv1.ReplicaSet{},
		controller.NoResyncPeriodFunc(),
		fedutil.NewTriggerOnMetaAndSpecChanges(
			func(obj runtime.Object) { frsc.deliverFedReplicaSetObj(obj, replicaSetReviewDelay) },
		),
	)

	return frsc
}

// NewNodeController returns a new node controller to sync instances from cloudprovider.
func NewNodeController(
	cloud cloudprovider.Interface,
	kubeClient clientset.Interface,
	podEvictionTimeout time.Duration,
	deletionEvictionLimiter flowcontrol.RateLimiter,
	terminationEvictionLimiter flowcontrol.RateLimiter,
	nodeMonitorGracePeriod time.Duration,
	nodeStartupGracePeriod time.Duration,
	nodeMonitorPeriod time.Duration,
	clusterCIDR *net.IPNet,
	serviceCIDR *net.IPNet,
	nodeCIDRMaskSize int,
	allocateNodeCIDRs bool) *NodeController {
	eventBroadcaster := record.NewBroadcaster()
	recorder := eventBroadcaster.NewRecorder(api.EventSource{Component: "controllermanager"})
	eventBroadcaster.StartLogging(glog.Infof)
	if kubeClient != nil {
		glog.V(0).Infof("Sending events to api server.")
		eventBroadcaster.StartRecordingToSink(&unversionedcore.EventSinkImpl{Interface: kubeClient.Core().Events("")})
	} else {
		glog.V(0).Infof("No api server defined - no events will be sent to API server.")
	}

	if kubeClient != nil && kubeClient.Core().GetRESTClient().GetRateLimiter() != nil {
		metrics.RegisterMetricAndTrackRateLimiterUsage("node_controller", kubeClient.Core().GetRESTClient().GetRateLimiter())
	}

	if allocateNodeCIDRs {
		if clusterCIDR == nil {
			glog.Fatal("NodeController: Must specify clusterCIDR if allocateNodeCIDRs == true.")
		}
		mask := clusterCIDR.Mask
		if maskSize, _ := mask.Size(); maskSize > nodeCIDRMaskSize {
			glog.Fatal("NodeController: Invalid clusterCIDR, mask size of clusterCIDR must be less than nodeCIDRMaskSize.")
		}
	}
	evictorLock := sync.Mutex{}

	nc := &NodeController{
		cloud:                     cloud,
		knownNodeSet:              make(sets.String),
		kubeClient:                kubeClient,
		recorder:                  recorder,
		podEvictionTimeout:        podEvictionTimeout,
		maximumGracePeriod:        5 * time.Minute,
		evictorLock:               &evictorLock,
		podEvictor:                NewRateLimitedTimedQueue(deletionEvictionLimiter),
		terminationEvictor:        NewRateLimitedTimedQueue(terminationEvictionLimiter),
		nodeStatusMap:             make(map[string]nodeStatusData),
		nodeMonitorGracePeriod:    nodeMonitorGracePeriod,
		nodeMonitorPeriod:         nodeMonitorPeriod,
		nodeStartupGracePeriod:    nodeStartupGracePeriod,
		lookupIP:                  net.LookupIP,
		now:                       unversioned.Now,
		clusterCIDR:               clusterCIDR,
		serviceCIDR:               serviceCIDR,
		allocateNodeCIDRs:         allocateNodeCIDRs,
		forcefullyDeletePod:       func(p *api.Pod) error { return forcefullyDeletePod(kubeClient, p) },
		nodeExistsInCloudProvider: func(nodeName string) (bool, error) { return nodeExistsInCloudProvider(cloud, nodeName) },
		nodeCIDRUpdateChannel:     make(chan nodeAndCIDR, cidrUpdateQueueSize),
	}

	nc.podStore.Indexer, nc.podController = framework.NewIndexerInformer(
		&cache.ListWatch{
			ListFunc: func(options api.ListOptions) (runtime.Object, error) {
				return nc.kubeClient.Core().Pods(api.NamespaceAll).List(options)
			},
			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
				return nc.kubeClient.Core().Pods(api.NamespaceAll).Watch(options)
			},
		},
		&api.Pod{},
		controller.NoResyncPeriodFunc(),
		framework.ResourceEventHandlerFuncs{
			AddFunc:    nc.maybeDeleteTerminatingPod,
			UpdateFunc: func(_, obj interface{}) { nc.maybeDeleteTerminatingPod(obj) },
		},
		// We don't need to build a index for podStore here actually, but build one for consistency.
		// It will ensure that if people start making use of the podStore in more specific ways,
		// they'll get the benefits they expect. It will also reserve the name for future refactorings.
		cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc},
	)

	nodeEventHandlerFuncs := framework.ResourceEventHandlerFuncs{}
	if nc.allocateNodeCIDRs {
		nodeEventHandlerFuncs = framework.ResourceEventHandlerFuncs{
			AddFunc:    nc.allocateOrOccupyCIDR,
			DeleteFunc: nc.recycleCIDR,
		}
	}

	nc.nodeStore.Store, nc.nodeController = framework.NewInformer(
		&cache.ListWatch{
			ListFunc: func(options api.ListOptions) (runtime.Object, error) {
				return nc.kubeClient.Core().Nodes().List(options)
			},
			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
				return nc.kubeClient.Core().Nodes().Watch(options)
			},
//.........这里部分代码省略.........

//.........这里部分代码省略.........
			WatchFunc: func(options v1.ListOptions) (watch.Interface, error) {
				return s.federationClient.Federation().Clusters().Watch(options)
			},
		},
		&v1beta1.Cluster{},
		clusterSyncPeriod,
		cache.ResourceEventHandlerFuncs{
			DeleteFunc: s.clusterCache.delFromClusterSet,
			AddFunc:    s.clusterCache.addToClientMap,
			UpdateFunc: func(old, cur interface{}) {
				oldCluster, ok := old.(*v1beta1.Cluster)
				if !ok {
					return
				}
				curCluster, ok := cur.(*v1beta1.Cluster)
				if !ok {
					return
				}
				if !reflect.DeepEqual(oldCluster.Spec, curCluster.Spec) {
					// update when spec is changed
					s.clusterCache.addToClientMap(cur)
				}

				pred := getClusterConditionPredicate()
				// only update when condition changed to ready from not-ready
				if !pred(*oldCluster) && pred(*curCluster) {
					s.clusterCache.addToClientMap(cur)
				}
				// did not handle ready -> not-ready
				// how could we stop a controller?
			},
		},
	)

	clusterLifecycle := fedutil.ClusterLifecycleHandlerFuncs{
		ClusterAvailable: func(cluster *v1beta1.Cluster) {
			s.clusterDeliverer.DeliverAfter(allClustersKey, nil, clusterAvailableDelay)
		},
	}
	fedInformerFactory := func(cluster *v1beta1.Cluster, targetClient kubeclientset.Interface) (cache.Store, cache.Controller) {
		return cache.NewInformer(
			&cache.ListWatch{
				ListFunc: func(options v1.ListOptions) (pkgruntime.Object, error) {
					return targetClient.Core().Services(v1.NamespaceAll).List(options)
				},
				WatchFunc: func(options v1.ListOptions) (watch.Interface, error) {
					return targetClient.Core().Services(v1.NamespaceAll).Watch(options)
				},
			},
			&v1.Service{},
			controller.NoResyncPeriodFunc(),
			// Trigger reconciliation whenever something in federated cluster is changed. In most cases it
			// would be just confirmation that some service operation succeeded.
			util.NewTriggerOnAllChanges(
				func(obj pkgruntime.Object) {
					// TODO: Use this to enque services.
				},
			))
	}

	s.federatedInformer = fedutil.NewFederatedInformer(federationClient, fedInformerFactory, &clusterLifecycle)

	federatedUpdater := fedutil.NewFederatedUpdater(s.federatedInformer,
		func(client kubeclientset.Interface, obj pkgruntime.Object) error {
			svc := obj.(*v1.Service)
			_, err := client.Core().Services(svc.Namespace).Create(svc)
			return err
		},
		func(client kubeclientset.Interface, obj pkgruntime.Object) error {
			svc := obj.(*v1.Service)
			_, err := client.Core().Services(svc.Namespace).Update(svc)
			return err
		},
		func(client kubeclientset.Interface, obj pkgruntime.Object) error {
			svc := obj.(*v1.Service)
			err := client.Core().Services(svc.Namespace).Delete(svc.Name, &v1.DeleteOptions{})
			return err
		})

	s.deletionHelper = deletionhelper.NewDeletionHelper(
		s.hasFinalizerFunc,
		s.removeFinalizerFunc,
		s.addFinalizerFunc,
		// objNameFunc
		func(obj pkgruntime.Object) string {
			service := obj.(*v1.Service)
			return service.Name
		},
		updateTimeout,
		s.eventRecorder,
		s.federatedInformer,
		federatedUpdater,
	)

	s.endpointWorkerMap = make(map[string]bool)
	s.serviceWorkerMap = make(map[string]bool)
	s.endpointWorkerDoneChan = make(chan string, maxNoOfClusters)
	s.serviceWorkerDoneChan = make(chan string, maxNoOfClusters)
	return s
}