Collapse duplicate informer creation paths

cmd/kube-controller-manager/app/controllermanager.go

@@ -197,10 +197,10 @@ func Run(s *options.CMServer) error {
 }
 
 func StartControllers(s *options.CMServer, kubeClient *client.Client, kubeconfig *restclient.Config, stop <-chan struct{}) error {
-	podInformer := informers.CreateSharedPodIndexInformer(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "pod-informer")), ResyncPeriod(s)())
-	nodeInformer := informers.CreateSharedNodeIndexInformer(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "node-informer")), ResyncPeriod(s)())
-	pvcInformer := informers.CreateSharedPVCIndexInformer(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "pvc-informer")), ResyncPeriod(s)())
-	pvInformer := informers.CreateSharedPVIndexInformer(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "pv-informer")), ResyncPeriod(s)())
+	podInformer := informers.NewPodInformer(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "pod-informer")), ResyncPeriod(s)())
+	nodeInformer := informers.NewNodeInformer(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "node-informer")), ResyncPeriod(s)())
+	pvcInformer := informers.NewPVCInformer(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "pvc-informer")), ResyncPeriod(s)())
+	pvInformer := informers.NewPVInformer(clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "pv-informer")), ResyncPeriod(s)())
 	informers := map[reflect.Type]framework.SharedIndexInformer{}
 	informers[reflect.TypeOf(&api.Pod{})] = podInformer
 	informers[reflect.TypeOf(&api.Node{})] = nodeInformer

pkg/controller/daemon/daemoncontroller.go

@@ -205,7 +205,7 @@ func NewDaemonSetsController(podInformer framework.SharedIndexInformer, kubeClie
 }
 
 func NewDaemonSetsControllerFromClient(kubeClient clientset.Interface, resyncPeriod controller.ResyncPeriodFunc, lookupCacheSize int) *DaemonSetsController {
-	podInformer := informers.CreateSharedPodIndexInformer(kubeClient, resyncPeriod())
+	podInformer := informers.NewPodInformer(kubeClient, resyncPeriod())
 	dsc := NewDaemonSetsController(podInformer, kubeClient, resyncPeriod, lookupCacheSize)
 	dsc.internalPodInformer = podInformer
 

pkg/controller/endpoint/endpoints_controller.go

@@ -113,7 +113,7 @@ func NewEndpointController(podInformer framework.SharedIndexInformer, client *cl
 
 // NewEndpointControllerFromClient returns a new *EndpointController that runs its own informer.
 func NewEndpointControllerFromClient(client *clientset.Clientset, resyncPeriod controller.ResyncPeriodFunc) *EndpointController {
-	podInformer := informers.CreateSharedPodIndexInformer(client, resyncPeriod())
+	podInformer := informers.NewPodInformer(client, resyncPeriod())
 	e := NewEndpointController(podInformer, client)
 	e.internalPodInformer = podInformer
 

pkg/controller/framework/informers/core.go

@@ -22,8 +22,6 @@ import (
 	"k8s.io/kubernetes/pkg/api"
 	"k8s.io/kubernetes/pkg/client/cache"
 	"k8s.io/kubernetes/pkg/controller/framework"
-	"k8s.io/kubernetes/pkg/runtime"
-	"k8s.io/kubernetes/pkg/watch"
 )
 
 // PodInformer is type of SharedIndexInformer which watches and lists all pods.
@@ -43,26 +41,12 @@ func (f *podInformer) Informer() framework.SharedIndexInformer {
 	f.lock.Lock()
 	defer f.lock.Unlock()
 
-	informerObj := &api.Pod{}
-	informerType := reflect.TypeOf(informerObj)
+	informerType := reflect.TypeOf(&api.Pod{})
 	informer, exists := f.informers[informerType]
 	if exists {
 		return informer
 	}
-
-	informer = framework.NewSharedIndexInformer(
-		&cache.ListWatch{
-			ListFunc: func(options api.ListOptions) (runtime.Object, error) {
-				return f.client.Core().Pods(api.NamespaceAll).List(options)
-			},
-			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
-				return f.client.Core().Pods(api.NamespaceAll).Watch(options)
-			},
-		},
-		informerObj,
-		f.defaultResync,
-		cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc},
-	)
+	informer = NewPodInformer(f.client, f.defaultResync)
 	f.informers[informerType] = informer
 
 	return informer
@@ -92,25 +76,13 @@ type namespaceInformer struct {
 func (f *namespaceInformer) Informer() framework.SharedIndexInformer {
 	f.lock.Lock()
 	defer f.lock.Unlock()
-	informerObj := &api.Namespace{}
-	informerType := reflect.TypeOf(informerObj)
+
+	informerType := reflect.TypeOf(&api.Namespace{})
 	informer, exists := f.informers[informerType]
 	if exists {
 		return informer
 	}
-	informer = framework.NewSharedIndexInformer(
-		&cache.ListWatch{
-			ListFunc: func(options api.ListOptions) (runtime.Object, error) {
-				return f.client.Core().Namespaces().List(options)
-			},
-			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
-				return f.client.Core().Namespaces().Watch(options)
-			},
-		},
-		informerObj,
-		f.defaultResync,
-		cache.Indexers{},
-	)
+	informer = NewNamespaceInformer(f.client, f.defaultResync)
 	f.informers[informerType] = informer
 
 	return informer
@@ -141,26 +113,12 @@ func (f *nodeInformer) Informer() framework.SharedIndexInformer {
 	f.lock.Lock()
 	defer f.lock.Unlock()
 
-	informerObj := &api.Node{}
-	informerType := reflect.TypeOf(informerObj)
+	informerType := reflect.TypeOf(&api.Node{})
 	informer, exists := f.informers[informerType]
 	if exists {
 		return informer
 	}
-
-	informer = framework.NewSharedIndexInformer(
-		&cache.ListWatch{
-			ListFunc: func(options api.ListOptions) (runtime.Object, error) {
-				return f.client.Core().Nodes().List(options)
-			},
-			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
-				return f.client.Core().Nodes().Watch(options)
-			},
-		},
-		informerObj,
-		f.defaultResync,
-		cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc},
-	)
+	informer = NewNodeInformer(f.client, f.defaultResync)
 	f.informers[informerType] = informer
 
 	return informer
@@ -191,26 +149,12 @@ func (f *pvcInformer) Informer() framework.SharedIndexInformer {
 	f.lock.Lock()
 	defer f.lock.Unlock()
 
-	informerObj := &api.PersistentVolumeClaim{}
-	informerType := reflect.TypeOf(informerObj)
+	informerType := reflect.TypeOf(&api.PersistentVolumeClaim{})
 	informer, exists := f.informers[informerType]
 	if exists {
 		return informer
 	}
-
-	informer = framework.NewSharedIndexInformer(
-		&cache.ListWatch{
-			ListFunc: func(options api.ListOptions) (runtime.Object, error) {
-				return f.client.Core().PersistentVolumeClaims(api.NamespaceAll).List(options)
-			},
-			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
-				return f.client.Core().PersistentVolumeClaims(api.NamespaceAll).Watch(options)
-			},
-		},
-		informerObj,
-		f.defaultResync,
-		cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc},
-	)
+	informer = NewPVCInformer(f.client, f.defaultResync)
 	f.informers[informerType] = informer
 
 	return informer
@@ -241,26 +185,12 @@ func (f *pvInformer) Informer() framework.SharedIndexInformer {
 	f.lock.Lock()
 	defer f.lock.Unlock()
 
-	informerObj := &api.PersistentVolume{}
-	informerType := reflect.TypeOf(informerObj)
+	informerType := reflect.TypeOf(&api.PersistentVolume{})
 	informer, exists := f.informers[informerType]
 	if exists {
 		return informer
 	}
-
-	informer = framework.NewSharedIndexInformer(
-		&cache.ListWatch{
-			ListFunc: func(options api.ListOptions) (runtime.Object, error) {
-				return f.client.Core().PersistentVolumes().List(options)
-			},
-			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
-				return f.client.Core().PersistentVolumes().Watch(options)
-			},
-		},
-		informerObj,
-		f.defaultResync,
-		cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc},
-	)
+	informer = NewPVInformer(f.client, f.defaultResync)
 	f.informers[informerType] = informer
 
 	return informer

pkg/controller/framework/informers/factory.go

@@ -101,27 +101,8 @@ func (f *sharedInformerFactory) PersistentVolumes() PVInformer {
 	return &pvInformer{sharedInformerFactory: f}
 }
 
-// CreateSharedPodInformer returns a SharedIndexInformer that lists and watches all pods
-func CreateSharedPodInformer(client clientset.Interface, resyncPeriod time.Duration) framework.SharedIndexInformer {
-	sharedInformer := framework.NewSharedIndexInformer(
-		&cache.ListWatch{
-			ListFunc: func(options api.ListOptions) (runtime.Object, error) {
-				return client.Core().Pods(api.NamespaceAll).List(options)
-			},
-			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
-				return client.Core().Pods(api.NamespaceAll).Watch(options)
-			},
-		},
-		&api.Pod{},
-		resyncPeriod,
-		cache.Indexers{},
-	)
-
-	return sharedInformer
-}
-
-// CreateSharedPodIndexInformer returns a SharedIndexInformer that lists and watches all pods
-func CreateSharedPodIndexInformer(client clientset.Interface, resyncPeriod time.Duration) framework.SharedIndexInformer {
+// NewPodInformer returns a SharedIndexInformer that lists and watches all pods
+func NewPodInformer(client clientset.Interface, resyncPeriod time.Duration) framework.SharedIndexInformer {
 	sharedIndexInformer := framework.NewSharedIndexInformer(
 		&cache.ListWatch{
 			ListFunc: func(options api.ListOptions) (runtime.Object, error) {
@@ -139,8 +120,8 @@ func CreateSharedPodIndexInformer(client clientset.Interface, resyncPeriod time.
 	return sharedIndexInformer
 }
 
-// CreateSharedNodeIndexInformer returns a SharedIndexInformer that lists and watches all nodes
-func CreateSharedNodeIndexInformer(client clientset.Interface, resyncPeriod time.Duration) framework.SharedIndexInformer {
+// NewNodeInformer returns a SharedIndexInformer that lists and watches all nodes
+func NewNodeInformer(client clientset.Interface, resyncPeriod time.Duration) framework.SharedIndexInformer {
 	sharedIndexInformer := framework.NewSharedIndexInformer(
 		&cache.ListWatch{
 			ListFunc: func(options api.ListOptions) (runtime.Object, error) {
@@ -157,8 +138,8 @@ func CreateSharedNodeIndexInformer(client clientset.Interface, resyncPeriod time
 	return sharedIndexInformer
 }
 
-// CreateSharedPVCIndexInformer returns a SharedIndexInformer that lists and watches all PVCs
-func CreateSharedPVCIndexInformer(client clientset.Interface, resyncPeriod time.Duration) framework.SharedIndexInformer {
+// NewPVCInformer returns a SharedIndexInformer that lists and watches all PVCs
+func NewPVCInformer(client clientset.Interface, resyncPeriod time.Duration) framework.SharedIndexInformer {
 	sharedIndexInformer := framework.NewSharedIndexInformer(
 		&cache.ListWatch{
 			ListFunc: func(options api.ListOptions) (runtime.Object, error) {
@@ -175,8 +156,8 @@ func CreateSharedPVCIndexInformer(client clientset.Interface, resyncPeriod time.
 	return sharedIndexInformer
 }
 
-// CreateSharedPVIndexInformer returns a SharedIndexInformer that lists and watches all PVs
-func CreateSharedPVIndexInformer(client clientset.Interface, resyncPeriod time.Duration) framework.SharedIndexInformer {
+// NewPVInformer returns a SharedIndexInformer that lists and watches all PVs
+func NewPVInformer(client clientset.Interface, resyncPeriod time.Duration) framework.SharedIndexInformer {
 	sharedIndexInformer := framework.NewSharedIndexInformer(
 		&cache.ListWatch{
 			ListFunc: func(options api.ListOptions) (runtime.Object, error) {
@@ -193,8 +174,8 @@ func CreateSharedPVIndexInformer(client clientset.Interface, resyncPeriod time.D
 	return sharedIndexInformer
 }
 
-// CreateSharedNamespaceIndexInformer returns a SharedIndexInformer that lists and watches namespaces
-func CreateSharedNamespaceIndexInformer(client clientset.Interface, resyncPeriod time.Duration) framework.SharedIndexInformer {
+// NewNamespaceInformer returns a SharedIndexInformer that lists and watches namespaces
+func NewNamespaceInformer(client clientset.Interface, resyncPeriod time.Duration) framework.SharedIndexInformer {
 	sharedIndexInformer := framework.NewSharedIndexInformer(
 		&cache.ListWatch{
 			ListFunc: func(options api.ListOptions) (runtime.Object, error) {

pkg/controller/job/jobcontroller.go

@@ -135,7 +135,7 @@ func NewJobController(podInformer framework.SharedIndexInformer, kubeClient clie
 }
 
 func NewJobControllerFromClient(kubeClient clientset.Interface, resyncPeriod controller.ResyncPeriodFunc) *JobController {
-	podInformer := informers.CreateSharedPodIndexInformer(kubeClient, resyncPeriod())
+	podInformer := informers.NewPodInformer(kubeClient, resyncPeriod())
 	jm := NewJobController(podInformer, kubeClient)
 	jm.internalPodInformer = podInformer
 

pkg/controller/node/nodecontroller.go

@@ -343,7 +343,7 @@ func NewNodeControllerFromClient(
 	serviceCIDR *net.IPNet,
 	nodeCIDRMaskSize int,
 	allocateNodeCIDRs bool) (*NodeController, error) {
-	podInformer := informers.CreateSharedPodIndexInformer(kubeClient, controller.NoResyncPeriodFunc())
+	podInformer := informers.NewPodInformer(kubeClient, controller.NoResyncPeriodFunc())
 	nc, err := NewNodeController(podInformer, cloud, kubeClient, podEvictionTimeout, evictionLimiterQPS, nodeMonitorGracePeriod,
 		nodeStartupGracePeriod, nodeMonitorPeriod, clusterCIDR, serviceCIDR, nodeCIDRMaskSize, allocateNodeCIDRs)
 	if err != nil {

pkg/controller/replicaset/replica_set.go

@@ -184,7 +184,7 @@ func newReplicaSetController(eventRecorder record.EventRecorder, podInformer fra
 
 // NewReplicationManagerFromClient creates a new ReplicationManager that runs its own informer.
 func NewReplicaSetControllerFromClient(kubeClient clientset.Interface, resyncPeriod controller.ResyncPeriodFunc, burstReplicas int, lookupCacheSize int) *ReplicaSetController {
-	podInformer := informers.CreateSharedPodIndexInformer(kubeClient, resyncPeriod())
+	podInformer := informers.NewPodInformer(kubeClient, resyncPeriod())
 	garbageCollectorEnabled := false
 	rsc := NewReplicaSetController(podInformer, kubeClient, resyncPeriod, burstReplicas, lookupCacheSize, garbageCollectorEnabled)
 	rsc.internalPodInformer = podInformer

pkg/controller/replication/replication_controller.go

@@ -189,7 +189,7 @@ func newReplicationManager(eventRecorder record.EventRecorder, podInformer frame
 
 // NewReplicationManagerFromClientForIntegration creates a new ReplicationManager that runs its own informer.  It disables event recording for use in integration tests.
 func NewReplicationManagerFromClientForIntegration(kubeClient clientset.Interface, resyncPeriod controller.ResyncPeriodFunc, burstReplicas int, lookupCacheSize int) *ReplicationManager {
-	podInformer := informers.CreateSharedPodIndexInformer(kubeClient, resyncPeriod())
+	podInformer := informers.NewPodInformer(kubeClient, resyncPeriod())
 	garbageCollectorEnabled := false
 	rm := newReplicationManager(&record.FakeRecorder{}, podInformer, kubeClient, resyncPeriod, burstReplicas, lookupCacheSize, garbageCollectorEnabled)
 	rm.internalPodInformer = podInformer
@@ -198,7 +198,7 @@ func NewReplicationManagerFromClientForIntegration(kubeClient clientset.Interfac
 
 // NewReplicationManagerFromClient creates a new ReplicationManager that runs its own informer.
 func NewReplicationManagerFromClient(kubeClient clientset.Interface, resyncPeriod controller.ResyncPeriodFunc, burstReplicas int, lookupCacheSize int) *ReplicationManager {
-	podInformer := informers.CreateSharedPodIndexInformer(kubeClient, resyncPeriod())
+	podInformer := informers.NewPodInformer(kubeClient, resyncPeriod())
 	garbageCollectorEnabled := false
 	rm := NewReplicationManager(podInformer, kubeClient, resyncPeriod, burstReplicas, lookupCacheSize, garbageCollectorEnabled)
 	rm.internalPodInformer = podInformer

pkg/controller/resourcequota/replenishment_controller.go

@@ -129,7 +129,7 @@ func (r *replenishmentControllerFactory) NewController(options *ReplenishmentCon
 			break
 		}
 
-		r.podInformer = informers.CreateSharedPodInformer(r.kubeClient, options.ResyncPeriod())
+		r.podInformer = informers.NewPodInformer(r.kubeClient, options.ResyncPeriod())
 		result = r.podInformer
 
 	case api.Kind("Service"):

pkg/controller/volume/attachdetach/attach_detach_controller_test.go

@@ -28,10 +28,10 @@ func Test_NewAttachDetachController_Positive(t *testing.T) {
 	// Arrange
 	fakeKubeClient := controllervolumetesting.CreateTestClient()
 	resyncPeriod := 5 * time.Minute
-	podInformer := informers.CreateSharedPodIndexInformer(fakeKubeClient, resyncPeriod)
-	nodeInformer := informers.CreateSharedNodeIndexInformer(fakeKubeClient, resyncPeriod)
-	pvcInformer := informers.CreateSharedPVCIndexInformer(fakeKubeClient, resyncPeriod)
-	pvInformer := informers.CreateSharedPVIndexInformer(fakeKubeClient, resyncPeriod)
+	podInformer := informers.NewPodInformer(fakeKubeClient, resyncPeriod)
+	nodeInformer := informers.NewNodeInformer(fakeKubeClient, resyncPeriod)
+	pvcInformer := informers.NewPVCInformer(fakeKubeClient, resyncPeriod)
+	pvInformer := informers.NewPVInformer(fakeKubeClient, resyncPeriod)
 
 	// Act
 	_, err := NewAttachDetachController(

pkg/controller/volume/attachdetach/reconciler/reconciler_test.go

@@ -47,7 +47,7 @@ func Test_Run_Positive_DoNothing(t *testing.T) {
 	fakeKubeClient := controllervolumetesting.CreateTestClient()
 	ad := operationexecutor.NewOperationExecutor(
 		fakeKubeClient, volumePluginMgr)
-	nodeInformer := informers.CreateSharedNodeIndexInformer(
+	nodeInformer := informers.NewNodeInformer(
 		fakeKubeClient, resyncPeriod)
 	nsu := statusupdater.NewNodeStatusUpdater(
 		fakeKubeClient, nodeInformer, asw)

test/integration/replicaset/replicaset_test.go

@@ -141,7 +141,7 @@ func rmSetup(t *testing.T, enableGarbageCollector bool) (*httptest.Server, *repl
 	resyncPeriodFunc := func() time.Duration {
 		return resyncPeriod
 	}
-	podInformer := informers.CreateSharedPodIndexInformer(internalclientset.NewForConfigOrDie(restclient.AddUserAgent(&config, "pod-informer")), resyncPeriod)
+	podInformer := informers.NewPodInformer(internalclientset.NewForConfigOrDie(restclient.AddUserAgent(&config, "pod-informer")), resyncPeriod)
 	rm := replicaset.NewReplicaSetController(
 		podInformer,
 		internalclientset.NewForConfigOrDie(restclient.AddUserAgent(&config, "replicaset-controller")),

test/integration/replicationcontroller/replicationcontroller_test.go

@@ -138,7 +138,7 @@ func rmSetup(t *testing.T, enableGarbageCollector bool) (*httptest.Server, *repl
 	resyncPeriodFunc := func() time.Duration {
 		return resyncPeriod
 	}
-	podInformer := informers.CreateSharedPodIndexInformer(internalclientset.NewForConfigOrDie(restclient.AddUserAgent(&config, "pod-informer")), resyncPeriod)
+	podInformer := informers.NewPodInformer(internalclientset.NewForConfigOrDie(restclient.AddUserAgent(&config, "pod-informer")), resyncPeriod)
 	rm := replication.NewReplicationManager(
 		podInformer,
 		internalclientset.NewForConfigOrDie(restclient.AddUserAgent(&config, "replication-controller")),