예제 #1
0
// NewIngressController returns a new ingress controller
func NewIngressController(client federationclientset.Interface) *IngressController {
	glog.V(4).Infof("->NewIngressController V(4)")
	broadcaster := record.NewBroadcaster()
	broadcaster.StartRecordingToSink(eventsink.NewFederatedEventSink(client))
	recorder := broadcaster.NewRecorder(v1.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 reconciliations.
	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 v1.ListOptions) (pkgruntime.Object, error) {
				return client.Extensions().Ingresses(api.NamespaceAll).List(options)
			},
			WatchFunc: func(options v1.ListOptions) (watch.Interface, error) {
				return client.Extensions().Ingresses(api.NamespaceAll).Watch(options)
			},
		},
		&extensionsv1beta1.Ingress{},
		controller.NoResyncPeriodFunc(),
		util.NewTriggerOnAllChanges(
			func(obj pkgruntime.Object) {
				ic.deliverIngressObj(obj, 0, false)
			},
		))

	// Federated informer on ingresses in members of federation.
	ic.ingressFederatedInformer = util.NewFederatedInformer(
		client,
		func(cluster *federationapi.Cluster, targetClient kubeclientset.Interface) (cache.Store, cache.ControllerInterface) {
			return cache.NewInformer(
				&cache.ListWatch{
					ListFunc: func(options v1.ListOptions) (pkgruntime.Object, error) {
						return targetClient.Extensions().Ingresses(api.NamespaceAll).List(options)
					},
					WatchFunc: func(options v1.ListOptions) (watch.Interface, error) {
						return targetClient.Extensions().Ingresses(api.NamespaceAll).Watch(options)
					},
				},
				&extensionsv1beta1.Ingress{},
				controller.NoResyncPeriodFunc(),
				// Trigger reconciliation whenever something in federated cluster is changed. In most cases it
				// would be just confirmation that some ingress operation succeeded.
				util.NewTriggerOnAllChanges(
					func(obj pkgruntime.Object) {
						ic.deliverIngressObj(obj, ic.ingressReviewDelay, false)
					},
				))
		},

		&util.ClusterLifecycleHandlerFuncs{
			ClusterAvailable: func(cluster *federationapi.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 *federationapi.Cluster, targetClient kubeclientset.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 v1.ListOptions) (pkgruntime.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 v1.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 pkgruntime.Object) {
						ic.deliverConfigMapObj(cluster.Name, obj, ic.configMapReviewDelay, false)
					},
				))
		},

		&util.ClusterLifecycleHandlerFuncs{
			ClusterAvailable: func(cluster *federationapi.Cluster) {
				ic.clusterDeliverer.DeliverAfter(cluster.Name, cluster, ic.clusterAvailableDelay)
			},
		},
	)

	// Federated ingress updater along with Create/Update/Delete operations.
	ic.federatedIngressUpdater = util.NewFederatedUpdater(ic.ingressFederatedInformer,
		func(client kubeclientset.Interface, obj pkgruntime.Object) error {
			ingress := obj.(*extensionsv1beta1.Ingress)
			glog.V(4).Infof("Attempting to create Ingress: %v", ingress)
			_, err := client.Extensions().Ingresses(ingress.Namespace).Create(ingress)
			if err != nil {
				glog.Errorf("Error creating ingress %q: %v", types.NamespacedName{Name: ingress.Name, Namespace: ingress.Namespace}, err)
			} else {
				glog.V(4).Infof("Successfully created ingress %q", types.NamespacedName{Name: ingress.Name, Namespace: ingress.Namespace})
			}
			return err
		},
		func(client kubeclientset.Interface, obj pkgruntime.Object) error {
			ingress := obj.(*extensionsv1beta1.Ingress)
			glog.V(4).Infof("Attempting to update Ingress: %v", ingress)
			_, err := client.Extensions().Ingresses(ingress.Namespace).Update(ingress)
			if err != nil {
				glog.V(4).Infof("Failed to update Ingress: %v", err)
			} else {
				glog.V(4).Infof("Successfully updated Ingress: %q", types.NamespacedName{Name: ingress.Name, Namespace: ingress.Namespace})
			}
			return err
		},
		func(client kubeclientset.Interface, obj pkgruntime.Object) error {
			ingress := obj.(*extensionsv1beta1.Ingress)
			glog.V(4).Infof("Attempting to delete Ingress: %v", ingress)
			err := client.Extensions().Ingresses(ingress.Namespace).Delete(ingress.Name, &v1.DeleteOptions{})
			return err
		})

	// Federated configmap updater along with Create/Update/Delete operations.  Only Update should ever be called.
	ic.federatedConfigMapUpdater = util.NewFederatedUpdater(ic.configMapFederatedInformer,
		func(client kubeclientset.Interface, obj pkgruntime.Object) error {
			configMap := obj.(*v1.ConfigMap)
			configMapName := types.NamespacedName{Name: configMap.Name, Namespace: configMap.Namespace}
			glog.Errorf("Internal error: Incorrectly attempting to create ConfigMap: %q", configMapName)
			_, err := client.Core().ConfigMaps(configMap.Namespace).Create(configMap)
			return err
		},
		func(client kubeclientset.Interface, obj pkgruntime.Object) error {
			configMap := obj.(*v1.ConfigMap)
			configMapName := types.NamespacedName{Name: configMap.Name, Namespace: configMap.Namespace}
			glog.V(4).Infof("Attempting to update ConfigMap: %v", configMap)
			_, err := client.Core().ConfigMaps(configMap.Namespace).Update(configMap)
			if err == nil {
				glog.V(4).Infof("Successfully updated ConfigMap %q", configMapName)
			} else {
				glog.V(4).Infof("Failed to update ConfigMap %q: %v", configMapName, err)
			}
			return err
		},
		func(client kubeclientset.Interface, obj pkgruntime.Object) error {
			configMap := obj.(*v1.ConfigMap)
			configMapName := types.NamespacedName{Name: configMap.Name, Namespace: configMap.Namespace}
			glog.Errorf("Internal error: Incorrectly attempting to delete ConfigMap: %q", configMapName)
			err := client.Core().ConfigMaps(configMap.Namespace).Delete(configMap.Name, &v1.DeleteOptions{})
			return err
		})

	ic.deletionHelper = deletionhelper.NewDeletionHelper(
		ic.hasFinalizerFunc,
		ic.removeFinalizerFunc,
		ic.addFinalizerFunc,
		// objNameFunc
		func(obj pkgruntime.Object) string {
			ingress := obj.(*extensionsv1beta1.Ingress)
			return ingress.Name
		},
		ic.updateTimeout,
		ic.eventRecorder,
		ic.ingressFederatedInformer,
		ic.federatedIngressUpdater,
	)
	return ic
}
예제 #2
0
// NewDaemonSetController returns a new daemonset controller
func NewDaemonSetController(client federationclientset.Interface) *DaemonSetController {
	broadcaster := record.NewBroadcaster()
	broadcaster.StartRecordingToSink(eventsink.NewFederatedEventSink(client))
	recorder := broadcaster.NewRecorder(apiv1.EventSource{Component: "federated-daemonset-controller"})

	daemonsetcontroller := &DaemonSetController{
		federatedApiClient:    client,
		daemonsetReviewDelay:  time.Second * 10,
		clusterAvailableDelay: time.Second * 20,
		smallDelay:            time.Second * 3,
		updateTimeout:         time.Second * 30,
		daemonsetBackoff:      flowcontrol.NewBackOff(5*time.Second, time.Minute),
		eventRecorder:         recorder,
	}

	// Build deliverers for triggering reconciliations.
	daemonsetcontroller.daemonsetDeliverer = util.NewDelayingDeliverer()
	daemonsetcontroller.clusterDeliverer = util.NewDelayingDeliverer()

	// Start informer in federated API servers on daemonsets that should be federated.
	daemonsetcontroller.daemonsetInformerStore, daemonsetcontroller.daemonsetInformerController = cache.NewInformer(
		&cache.ListWatch{
			ListFunc: func(options apiv1.ListOptions) (pkgruntime.Object, error) {
				return client.Extensions().DaemonSets(apiv1.NamespaceAll).List(options)
			},
			WatchFunc: func(options apiv1.ListOptions) (watch.Interface, error) {
				return client.Extensions().DaemonSets(apiv1.NamespaceAll).Watch(options)
			},
		},
		&extensionsv1.DaemonSet{},
		controller.NoResyncPeriodFunc(),
		util.NewTriggerOnAllChanges(func(obj pkgruntime.Object) { daemonsetcontroller.deliverDaemonSetObj(obj, 0, false) }))

	// Federated informer on daemonsets in members of federation.
	daemonsetcontroller.daemonsetFederatedInformer = util.NewFederatedInformer(
		client,
		func(cluster *federationapi.Cluster, targetClient kubeclientset.Interface) (cache.Store, cache.Controller) {
			return cache.NewInformer(
				&cache.ListWatch{
					ListFunc: func(options apiv1.ListOptions) (pkgruntime.Object, error) {
						return targetClient.Extensions().DaemonSets(apiv1.NamespaceAll).List(options)
					},
					WatchFunc: func(options apiv1.ListOptions) (watch.Interface, error) {
						return targetClient.Extensions().DaemonSets(apiv1.NamespaceAll).Watch(options)
					},
				},
				&extensionsv1.DaemonSet{},
				controller.NoResyncPeriodFunc(),
				// Trigger reconciliation whenever something in federated cluster is changed. In most cases it
				// would be just confirmation that some daemonset operation succeeded.
				util.NewTriggerOnAllChanges(
					func(obj pkgruntime.Object) {
						daemonsetcontroller.deliverDaemonSetObj(obj, daemonsetcontroller.daemonsetReviewDelay, false)
					},
				))
		},

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

	// Federated updater along with Create/Update/Delete operations.
	daemonsetcontroller.federatedUpdater = util.NewFederatedUpdater(daemonsetcontroller.daemonsetFederatedInformer,
		func(client kubeclientset.Interface, obj pkgruntime.Object) error {
			daemonset := obj.(*extensionsv1.DaemonSet)
			glog.V(4).Infof("Attempting to create daemonset: %s/%s", daemonset.Namespace, daemonset.Name)
			_, err := client.Extensions().DaemonSets(daemonset.Namespace).Create(daemonset)
			if err != nil {
				glog.Errorf("Error creating daemonset %s/%s/: %v", daemonset.Namespace, daemonset.Name, err)
			} else {
				glog.V(4).Infof("Successfully created deamonset %s/%s", daemonset.Namespace, daemonset.Name)
			}
			return err
		},
		func(client kubeclientset.Interface, obj pkgruntime.Object) error {
			daemonset := obj.(*extensionsv1.DaemonSet)
			glog.V(4).Infof("Attempting to update daemonset: %s/%s", daemonset.Namespace, daemonset.Name)
			_, err := client.Extensions().DaemonSets(daemonset.Namespace).Update(daemonset)
			if err != nil {
				glog.Errorf("Error updating daemonset %s/%s/: %v", daemonset.Namespace, daemonset.Name, err)
			} else {
				glog.V(4).Infof("Successfully updating deamonset %s/%s", daemonset.Namespace, daemonset.Name)
			}
			return err
		},
		func(client kubeclientset.Interface, obj pkgruntime.Object) error {
			daemonset := obj.(*extensionsv1.DaemonSet)
			glog.V(4).Infof("Attempting to delete daemonset: %s/%s", daemonset.Namespace, daemonset.Name)
			err := client.Extensions().DaemonSets(daemonset.Namespace).Delete(daemonset.Name, &apiv1.DeleteOptions{})
			if err != nil {
				glog.Errorf("Error deleting daemonset %s/%s/: %v", daemonset.Namespace, daemonset.Name, err)
			} else {
				glog.V(4).Infof("Successfully deleting deamonset %s/%s", daemonset.Namespace, daemonset.Name)
			}
			return err
		})

	daemonsetcontroller.deletionHelper = deletionhelper.NewDeletionHelper(
		daemonsetcontroller.hasFinalizerFunc,
		daemonsetcontroller.removeFinalizerFunc,
		daemonsetcontroller.addFinalizerFunc,
		// objNameFunc
		func(obj pkgruntime.Object) string {
			daemonset := obj.(*extensionsv1.DaemonSet)
			return daemonset.Name
		},
		daemonsetcontroller.updateTimeout,
		daemonsetcontroller.eventRecorder,
		daemonsetcontroller.daemonsetFederatedInformer,
		daemonsetcontroller.federatedUpdater,
	)

	return daemonsetcontroller
}