Golang Interface.Core方法代码示例

func (cc *clusterClientCache) persistFedServiceUpdate(cachedService *cachedService, fedClient federation_release_1_4.Interface) error {
	service := cachedService.lastState
	glog.V(5).Infof("Persist federation service status %s/%s", service.Namespace, service.Name)
	var err error
	for i := 0; i < clientRetryCount; i++ {
		_, err := fedClient.Core().Services(service.Namespace).Get(service.Name)
		if errors.IsNotFound(err) {
			glog.Infof("Not persisting update to service '%s/%s' that no longer exists: %v",
				service.Namespace, service.Name, err)
			return nil
		}
		_, err = fedClient.Core().Services(service.Namespace).UpdateStatus(service)
		if err == nil {
			glog.V(2).Infof("Successfully update service %s/%s to federation apiserver", service.Namespace, service.Name)
			return nil
		}
		if errors.IsNotFound(err) {
			glog.Infof("Not persisting update to service '%s/%s' that no longer exists: %v",
				service.Namespace, service.Name, err)
			return nil
		}
		if errors.IsConflict(err) {
			glog.V(4).Infof("Not persisting update to service '%s/%s' that has been changed since we received it: %v",
				service.Namespace, service.Name, err)
			return err
		}
		time.Sleep(cachedService.nextFedUpdateDelay())
	}
	return err
}

// Whenever there is change on service, the federation service should be updated
func (cc *clusterClientCache) syncService(key, clusterName string, clusterCache *clusterCache, serviceCache *serviceCache, fedClient federation_release_1_4.Interface, sc *ServiceController) error {
	// obj holds the latest service info from apiserver, return if there is no federation cache for the service
	cachedService, ok := serviceCache.get(key)
	if !ok {
		// if serviceCache does not exists, that means the service is not created by federation, we should skip it
		return nil
	}
	serviceInterface, exists, err := clusterCache.serviceStore.Indexer.GetByKey(key)
	if err != nil {
		glog.Errorf("Did not successfully get %v from store: %v, will retry later", key, err)
		clusterCache.serviceQueue.Add(key)
		return err
	}
	var needUpdate, isDeletion bool
	if exists {
		service, ok := serviceInterface.(*v1.Service)
		if ok {
			glog.V(4).Infof("Found service for federation service %s/%s from cluster %s", service.Namespace, service.Name, clusterName)
			needUpdate = cc.processServiceUpdate(cachedService, service, clusterName)
		} else {
			_, ok := serviceInterface.(cache.DeletedFinalStateUnknown)
			if !ok {
				return fmt.Errorf("Object contained wasn't a service or a deleted key: %+v", serviceInterface)
			}
			glog.Infof("Found tombstone for %v", key)
			needUpdate = cc.processServiceDeletion(cachedService, clusterName)
			isDeletion = true
		}
	} else {
		glog.Infof("Can not get service %v for cluster %s from serviceStore", key, clusterName)
		needUpdate = cc.processServiceDeletion(cachedService, clusterName)
		isDeletion = true
	}

	if needUpdate {
		for i := 0; i < clientRetryCount; i++ {
			err := sc.ensureDnsRecords(clusterName, cachedService)
			if err == nil {
				break
			}
			glog.V(4).Infof("Error ensuring DNS Records for service %s on cluster %s: %v", key, clusterName, err)
			time.Sleep(cachedService.nextDNSUpdateDelay())
			clusterCache.serviceQueue.Add(key)
			// did not retry here as we still want to persist federation apiserver even ensure dns records fails
		}
		err := cc.persistFedServiceUpdate(cachedService, fedClient)
		if err == nil {
			cachedService.appliedState = cachedService.lastState
			cachedService.resetFedUpdateDelay()
		} else {
			if err != nil {
				glog.Errorf("Failed to sync service: %+v, put back to service queue", err)
				clusterCache.serviceQueue.Add(key)
			}
		}
	}
	if isDeletion {
		// cachedService is not reliable here as
		// deleting cache is the last step of federation service deletion
		_, err := fedClient.Core().Services(cachedService.lastState.Namespace).Get(cachedService.lastState.Name)
		// rebuild service if federation service still exists
		if err == nil || !errors.IsNotFound(err) {
			return sc.ensureClusterService(cachedService, clusterName, cachedService.appliedState, clusterCache.clientset)
		}
	}
	return nil
}

// NewSecretController returns a new secret controller
func NewSecretController(client federation_release_1_4.Interface) *SecretController {
	broadcaster := record.NewBroadcaster()
	broadcaster.StartRecordingToSink(eventsink.NewFederatedEventSink(client))
	recorder := broadcaster.NewRecorder(api.EventSource{Component: "federated-secrets-controller"})

	secretcontroller := &SecretController{
		federatedApiClient:    client,
		secretReviewDelay:     time.Second * 10,
		clusterAvailableDelay: time.Second * 20,
		smallDelay:            time.Second * 3,
		updateTimeout:         time.Second * 30,
		secretBackoff:         flowcontrol.NewBackOff(5*time.Second, time.Minute),
		eventRecorder:         recorder,
	}

	// Build delivereres for triggering reconcilations.
	secretcontroller.secretDeliverer = util.NewDelayingDeliverer()
	secretcontroller.clusterDeliverer = util.NewDelayingDeliverer()

	// Start informer in federated API servers on secrets that should be federated.
	secretcontroller.secretInformerStore, secretcontroller.secretInformerController = framework.NewInformer(
		&cache.ListWatch{
			ListFunc: func(options api.ListOptions) (pkg_runtime.Object, error) {
				return client.Core().Secrets(api_v1.NamespaceAll).List(options)
			},
			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
				return client.Core().Secrets(api_v1.NamespaceAll).Watch(options)
			},
		},
		&api_v1.Secret{},
		controller.NoResyncPeriodFunc(),
		util.NewTriggerOnAllChanges(func(obj pkg_runtime.Object) { secretcontroller.deliverSecretObj(obj, 0, false) }))

	// Federated informer on secrets in members of federation.
	secretcontroller.secretFederatedInformer = util.NewFederatedInformer(
		client,
		func(cluster *federation_api.Cluster, targetClient kube_release_1_4.Interface) (cache.Store, framework.ControllerInterface) {
			return framework.NewInformer(
				&cache.ListWatch{
					ListFunc: func(options api.ListOptions) (pkg_runtime.Object, error) {
						return targetClient.Core().Secrets(api_v1.NamespaceAll).List(options)
					},
					WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
						return targetClient.Core().Secrets(api_v1.NamespaceAll).Watch(options)
					},
				},
				&api_v1.Secret{},
				controller.NoResyncPeriodFunc(),
				// Trigger reconcilation whenever something in federated cluster is changed. In most cases it
				// would be just confirmation that some secret opration suceeded.
				util.NewTriggerOnAllChanges(
					func(obj pkg_runtime.Object) {
						secretcontroller.deliverSecretObj(obj, secretcontroller.secretReviewDelay, false)
					},
				))
		},

		&util.ClusterLifecycleHandlerFuncs{
			ClusterAvailable: func(cluster *federation_api.Cluster) {
				// When new cluster becomes available process all the secrets again.
				secretcontroller.clusterDeliverer.DeliverAt(allClustersKey, nil, time.Now().Add(secretcontroller.clusterAvailableDelay))
			},
		},
	)

	// Federated updeater along with Create/Update/Delete operations.
	secretcontroller.federatedUpdater = util.NewFederatedUpdater(secretcontroller.secretFederatedInformer,
		func(client kube_release_1_4.Interface, obj pkg_runtime.Object) error {
			secret := obj.(*api_v1.Secret)
			_, err := client.Core().Secrets(secret.Namespace).Create(secret)
			return err
		},
		func(client kube_release_1_4.Interface, obj pkg_runtime.Object) error {
			secret := obj.(*api_v1.Secret)
			_, err := client.Core().Secrets(secret.Namespace).Update(secret)
			return err
		},
		func(client kube_release_1_4.Interface, obj pkg_runtime.Object) error {
			secret := obj.(*api_v1.Secret)
			err := client.Core().Secrets(secret.Namespace).Delete(secret.Name, &api.DeleteOptions{})
			return err
		})
	return secretcontroller
}

// NewNamespaceController returns a new namespace controller
func NewNamespaceController(client federation_release_1_4.Interface) *NamespaceController {
	broadcaster := record.NewBroadcaster()
	broadcaster.StartRecordingToSink(eventsink.NewFederatedEventSink(client))
	recorder := broadcaster.NewRecorder(api.EventSource{Component: "federated-namespace-controller"})

	nc := &NamespaceController{
		federatedApiClient:    client,
		namespaceReviewDelay:  time.Second * 10,
		clusterAvailableDelay: time.Second * 20,
		smallDelay:            time.Second * 3,
		updateTimeout:         time.Second * 30,
		namespaceBackoff:      flowcontrol.NewBackOff(5*time.Second, time.Minute),
		eventRecorder:         recorder,
	}

	// Build delivereres for triggering reconciliations.
	nc.namespaceDeliverer = util.NewDelayingDeliverer()
	nc.clusterDeliverer = util.NewDelayingDeliverer()

	// Start informer in federated API servers on namespaces that should be federated.
	nc.namespaceInformerStore, nc.namespaceInformerController = cache.NewInformer(
		&cache.ListWatch{
			ListFunc: func(options api.ListOptions) (pkg_runtime.Object, error) {
				return client.Core().Namespaces().List(options)
			},
			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
				return client.Core().Namespaces().Watch(options)
			},
		},
		&api_v1.Namespace{},
		controller.NoResyncPeriodFunc(),
		util.NewTriggerOnAllChanges(func(obj pkg_runtime.Object) { nc.deliverNamespaceObj(obj, 0, false) }))

	// Federated informer on namespaces in members of federation.
	nc.namespaceFederatedInformer = util.NewFederatedInformer(
		client,
		func(cluster *federation_api.Cluster, targetClient kube_release_1_4.Interface) (cache.Store, cache.ControllerInterface) {
			return cache.NewInformer(
				&cache.ListWatch{
					ListFunc: func(options api.ListOptions) (pkg_runtime.Object, error) {
						return targetClient.Core().Namespaces().List(options)
					},
					WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
						return targetClient.Core().Namespaces().Watch(options)
					},
				},
				&api_v1.Namespace{},
				controller.NoResyncPeriodFunc(),
				// Trigger reconciliation whenever something in federated cluster is changed. In most cases it
				// would be just confirmation that some namespace opration succeeded.
				util.NewTriggerOnMetaAndSpecChanges(
					func(obj pkg_runtime.Object) { nc.deliverNamespaceObj(obj, nc.namespaceReviewDelay, false) },
				))
		},

		&util.ClusterLifecycleHandlerFuncs{
			ClusterAvailable: func(cluster *federation_api.Cluster) {
				// When new cluster becomes available process all the namespaces again.
				nc.clusterDeliverer.DeliverAfter(allClustersKey, nil, nc.clusterAvailableDelay)
			},
		},
	)

	// Federated updeater along with Create/Update/Delete operations.
	nc.federatedUpdater = util.NewFederatedUpdater(nc.namespaceFederatedInformer,
		func(client kube_release_1_4.Interface, obj pkg_runtime.Object) error {
			namespace := obj.(*api_v1.Namespace)
			_, err := client.Core().Namespaces().Create(namespace)
			return err
		},
		func(client kube_release_1_4.Interface, obj pkg_runtime.Object) error {
			namespace := obj.(*api_v1.Namespace)
			_, err := client.Core().Namespaces().Update(namespace)
			return err
		},
		func(client kube_release_1_4.Interface, obj pkg_runtime.Object) error {
			namespace := obj.(*api_v1.Namespace)
			err := client.Core().Namespaces().Delete(namespace.Name, &api.DeleteOptions{})
			return err
		})
	return nc
}

// NewIngressController returns a new ingress controller
func NewIngressController(client federation_release_1_4.Interface) *IngressController {
	glog.V(4).Infof("->NewIngressController V(4)")
	broadcaster := record.NewBroadcaster()
	broadcaster.StartRecordingToSink(eventsink.NewFederatedEventSink(client))
	recorder := broadcaster.NewRecorder(api.EventSource{Component: "federated-ingress-controller"})
	ic := &IngressController{
		federatedApiClient:    client,
		ingressReviewDelay:    time.Second * 10,
		configMapReviewDelay:  time.Second * 10,
		clusterAvailableDelay: time.Second * 20,
		smallDelay:            time.Second * 3,
		updateTimeout:         time.Second * 30,
		ingressBackoff:        flowcontrol.NewBackOff(5*time.Second, time.Minute),
		eventRecorder:         recorder,
		configMapBackoff:      flowcontrol.NewBackOff(5*time.Second, time.Minute),
	}

	// Build deliverers for triggering reconcilations.
	ic.ingressDeliverer = util.NewDelayingDeliverer()
	ic.clusterDeliverer = util.NewDelayingDeliverer()
	ic.configMapDeliverer = util.NewDelayingDeliverer()

	// Start informer in federated API servers on ingresses that should be federated.
	ic.ingressInformerStore, ic.ingressInformerController = cache.NewInformer(
		&cache.ListWatch{
			ListFunc: func(options api.ListOptions) (pkg_runtime.Object, error) {
				return client.Extensions().Ingresses(api.NamespaceAll).List(options)
			},
			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
				return client.Extensions().Ingresses(api.NamespaceAll).Watch(options)
			},
		},
		&extensions_v1beta1.Ingress{},
		controller.NoResyncPeriodFunc(),
		util.NewTriggerOnAllChanges(
			func(obj pkg_runtime.Object) {
				ic.deliverIngressObj(obj, 0, false)
			},
		))

	// Federated informer on ingresses in members of federation.
	ic.ingressFederatedInformer = util.NewFederatedInformer(
		client,
		func(cluster *federation_api.Cluster, targetClient kube_release_1_4.Interface) (cache.Store, cache.ControllerInterface) {
			return cache.NewInformer(
				&cache.ListWatch{
					ListFunc: func(options api.ListOptions) (pkg_runtime.Object, error) {
						return targetClient.Extensions().Ingresses(api.NamespaceAll).List(options)
					},
					WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
						return targetClient.Extensions().Ingresses(api.NamespaceAll).Watch(options)
					},
				},
				&extensions_v1beta1.Ingress{},
				controller.NoResyncPeriodFunc(),
				// Trigger reconcilation whenever something in federated cluster is changed. In most cases it
				// would be just confirmation that some ingress operation suceeded.
				util.NewTriggerOnAllChanges(
					func(obj pkg_runtime.Object) {
						ic.deliverIngressObj(obj, ic.ingressReviewDelay, false)
					},
				))
		},

		&util.ClusterLifecycleHandlerFuncs{
			ClusterAvailable: func(cluster *federation_api.Cluster) {
				// When new cluster becomes available process all the ingresses again, and configure it's ingress controller's configmap with the correct UID
				ic.clusterDeliverer.DeliverAfter(cluster.Name, cluster, ic.clusterAvailableDelay)
			},
		},
	)

	// Federated informer on configmaps for ingress controllers in members of the federation.
	ic.configMapFederatedInformer = util.NewFederatedInformer(
		client,
		func(cluster *federation_api.Cluster, targetClient kube_release_1_4.Interface) (cache.Store, cache.ControllerInterface) {
			glog.V(4).Infof("Returning new informer for cluster %q", cluster.Name)
			return cache.NewInformer(
				&cache.ListWatch{
					ListFunc: func(options api.ListOptions) (pkg_runtime.Object, error) {
						if targetClient == nil {
							glog.Errorf("Internal error: targetClient is nil")
						}
						return targetClient.Core().ConfigMaps(uidConfigMapNamespace).List(options) // we only want to list one by name - unfortunately Kubernetes don't have a selector for that.
					},
					WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
						if targetClient == nil {
							glog.Errorf("Internal error: targetClient is nil")
						}
						return targetClient.Core().ConfigMaps(uidConfigMapNamespace).Watch(options) // as above
					},
				},
				&v1.ConfigMap{},
				controller.NoResyncPeriodFunc(),
				// Trigger reconcilation whenever the ingress controller's configmap in a federated cluster is changed. In most cases it
				// would be just confirmation that the configmap for the ingress controller is correct.
				util.NewTriggerOnAllChanges(
					func(obj pkg_runtime.Object) {
						ic.deliverConfigMapObj(cluster.Name, obj, ic.configMapReviewDelay, false)
//.........这里部分代码省略.........