Golang operationexecutor.NewOperationExecutor函数代码示例

// Calls Run()
// Verifies there are no calls to attach or detach.
func Test_Run_Positive_DoNothing(t *testing.T) {
	// Arrange
	volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
	dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
	asw := cache.NewActualStateOfWorld(volumePluginMgr)
	fakeKubeClient := controllervolumetesting.CreateTestClient()
	ad := operationexecutor.NewOperationExecutor(
		fakeKubeClient, volumePluginMgr)
	nodeInformer := informers.CreateSharedNodeIndexInformer(
		fakeKubeClient, resyncPeriod)
	nsu := statusupdater.NewNodeStatusUpdater(
		fakeKubeClient, nodeInformer, asw)
	reconciler := NewReconciler(
		reconcilerLoopPeriod, maxWaitForUnmountDuration, dsw, asw, ad, nsu)

	// Act
	go reconciler.Run(wait.NeverStop)

	// Assert
	waitForNewAttacherCallCount(t, 0 /* expectedCallCount */, fakePlugin)
	verifyNewAttacherCallCount(t, true /* expectZeroNewAttacherCallCount */, fakePlugin)
	verifyNewDetacherCallCount(t, true /* expectZeroNewDetacherCallCount */, fakePlugin)
	waitForAttachCallCount(t, 0 /* expectedAttachCallCount */, fakePlugin)
	waitForDetachCallCount(t, 0 /* expectedDetachCallCount */, fakePlugin)
}

// Calls Run()
// Verifies there are no calls to attach, detach, mount, unmount, etc.
func Test_Run_Positive_DoNothing(t *testing.T) {
	// Arrange
	volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
	dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
	asw := cache.NewActualStateOfWorld(nodeName, volumePluginMgr)
	kubeClient := createTestClient()
	oex := operationexecutor.NewOperationExecutor(kubeClient, volumePluginMgr)
	reconciler := NewReconciler(
		kubeClient,
		false, /* controllerAttachDetachEnabled */
		reconcilerLoopSleepDuration,
		reconcilerReconstructSleepPeriod,
		waitForAttachTimeout,
		nodeName,
		dsw,
		asw,
		oex,
		&mount.FakeMounter{},
		volumePluginMgr,
		kubeletPodsDir)

	// Act
	runReconciler(reconciler)

	// Assert
	assert.NoError(t, volumetesting.VerifyZeroAttachCalls(fakePlugin))
	assert.NoError(t, volumetesting.VerifyZeroWaitForAttachCallCount(fakePlugin))
	assert.NoError(t, volumetesting.VerifyZeroMountDeviceCallCount(fakePlugin))
	assert.NoError(t, volumetesting.VerifyZeroSetUpCallCount(fakePlugin))
	assert.NoError(t, volumetesting.VerifyZeroTearDownCallCount(fakePlugin))
	assert.NoError(t, volumetesting.VerifyZeroDetachCallCount(fakePlugin))
}

// Calls Run()
// Verifies there are no calls to attach or detach.
func Test_Run_Positive_DoNothing(t *testing.T) {
	// Arrange
	volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
	dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
	asw := cache.NewActualStateOfWorld(volumePluginMgr)
	fakeKubeClient := controllervolumetesting.CreateTestClient()
	fakeRecorder := &record.FakeRecorder{}
	ad := operationexecutor.NewOperationExecutor(operationexecutor.NewOperationGenerator(fakeKubeClient, volumePluginMgr, fakeRecorder, false /* checkNodeCapabilitiesBeforeMount */))
	nodeInformer := informers.NewNodeInformer(
		fakeKubeClient, resyncPeriod)
	nsu := statusupdater.NewNodeStatusUpdater(
		fakeKubeClient, nodeInformer, asw)
	reconciler := NewReconciler(
		reconcilerLoopPeriod, maxWaitForUnmountDuration, syncLoopPeriod, false, dsw, asw, ad, nsu)

	// Act
	ch := make(chan struct{})
	go reconciler.Run(ch)
	defer close(ch)

	// Assert
	waitForNewAttacherCallCount(t, 0 /* expectedCallCount */, fakePlugin)
	verifyNewAttacherCallCount(t, true /* expectZeroNewAttacherCallCount */, fakePlugin)
	verifyNewDetacherCallCount(t, true /* expectZeroNewDetacherCallCount */, fakePlugin)
	waitForAttachCallCount(t, 0 /* expectedAttachCallCount */, fakePlugin)
	waitForDetachCallCount(t, 0 /* expectedDetachCallCount */, fakePlugin)
}

// Populates desiredStateOfWorld cache with one node/volume/pod tuple.
// Calls Run()
// Verifies there is one attach call and no detach calls.
func Test_Run_Positive_OneDesiredVolumeAttach(t *testing.T) {
	// Arrange
	volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
	dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
	asw := cache.NewActualStateOfWorld(volumePluginMgr)
	ad := operationexecutor.NewOperationExecutor(volumePluginMgr)
	reconciler := NewReconciler(
		reconcilerLoopPeriod, maxWaitForUnmountDuration, dsw, asw, ad)
	podName := types.UniquePodName("pod-uid")
	volumeName := api.UniqueVolumeName("volume-name")
	volumeSpec := controllervolumetesting.GetTestVolumeSpec(string(volumeName), volumeName)
	nodeName := "node-name"
	dsw.AddNode(nodeName)
	volumeExists := dsw.VolumeExists(volumeName, nodeName)
	if volumeExists {
		t.Fatalf(
			"Volume %q/node %q should not exist, but it does.",
			volumeName,
			nodeName)
	}

	_, podErr := dsw.AddPod(podName, volumeSpec, nodeName)
	if podErr != nil {
		t.Fatalf("AddPod failed. Expected: <no error> Actual: <%v>", podErr)
	}

	// Act
	go reconciler.Run(wait.NeverStop)

	// Assert
	waitForNewAttacherCallCount(t, 1 /* expectedCallCount */, fakePlugin)
	waitForAttachCallCount(t, 1 /* expectedAttachCallCount */, fakePlugin)
	verifyNewDetacherCallCount(t, true /* expectZeroNewDetacherCallCount */, fakePlugin)
}

// Populates desiredStateOfWorld cache with one volume/pod.
// Enables controllerAttachDetachEnabled.
// Calls Run()
// Verifies there is one mount call and no unmount calls.
// Verifies there are no attach/detach calls.
func Test_Run_Positive_VolumeMountControllerAttachEnabled(t *testing.T) {
	// Arrange
	volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
	dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
	asw := cache.NewActualStateOfWorld(nodeName, volumePluginMgr)
	kubeClient := createTestClient()
	oex := operationexecutor.NewOperationExecutor(kubeClient, volumePluginMgr)
	reconciler := NewReconciler(
		kubeClient,
		true, /* controllerAttachDetachEnabled */
		reconcilerLoopSleepDuration,
		waitForAttachTimeout,
		nodeName,
		dsw,
		asw,
		oex)
	pod := &api.Pod{
		ObjectMeta: api.ObjectMeta{
			Name: "pod1",
			UID:  "pod1uid",
		},
		Spec: api.PodSpec{
			Volumes: []api.Volume{
				{
					Name: "volume-name",
					VolumeSource: api.VolumeSource{
						GCEPersistentDisk: &api.GCEPersistentDiskVolumeSource{
							PDName: "fake-device1",
						},
					},
				},
			},
		},
	}

	volumeSpec := &volume.Spec{Volume: &pod.Spec.Volumes[0]}
	podName := volumehelper.GetUniquePodName(pod)
	_, err := dsw.AddPodToVolume(
		podName, pod, volumeSpec, volumeSpec.Name(), "" /* volumeGidValue */)

	// Assert
	if err != nil {
		t.Fatalf("AddPodToVolume failed. Expected: <no error> Actual: <%v>", err)
	}

	// Act
	go reconciler.Run(wait.NeverStop)
	waitForAttach(t, fakePlugin, asw)

	// Assert
	assert.NoError(t, volumetesting.VerifyZeroAttachCalls(fakePlugin))
	assert.NoError(t, volumetesting.VerifyWaitForAttachCallCount(
		1 /* expectedWaitForAttachCallCount */, fakePlugin))
	assert.NoError(t, volumetesting.VerifyMountDeviceCallCount(
		1 /* expectedMountDeviceCallCount */, fakePlugin))
	assert.NoError(t, volumetesting.VerifySetUpCallCount(
		1 /* expectedSetUpCallCount */, fakePlugin))
	assert.NoError(t, volumetesting.VerifyZeroTearDownCallCount(fakePlugin))
	assert.NoError(t, volumetesting.VerifyZeroDetachCallCount(fakePlugin))
}

// NewVolumeManager returns a new concrete instance implementing the
// VolumeManager interface.
//
// kubeClient - kubeClient is the kube API client used by DesiredStateOfWorldPopulator
//   to communicate with the API server to fetch PV and PVC objects
// volumePluginMgr - the volume plugin manager used to access volume plugins.
//   Must be pre-initialized.
func NewVolumeManager(
	controllerAttachDetachEnabled bool,
	hostName string,
	podManager pod.Manager,
	kubeClient internalclientset.Interface,
	volumePluginMgr *volume.VolumePluginMgr) (VolumeManager, error) {
	vm := &volumeManager{
		kubeClient:          kubeClient,
		volumePluginMgr:     volumePluginMgr,
		desiredStateOfWorld: cache.NewDesiredStateOfWorld(volumePluginMgr),
		actualStateOfWorld:  cache.NewActualStateOfWorld(hostName, volumePluginMgr),
		operationExecutor: operationexecutor.NewOperationExecutor(
			kubeClient,
			volumePluginMgr),
	}

	vm.reconciler = reconciler.NewReconciler(
		kubeClient,
		controllerAttachDetachEnabled,
		reconcilerLoopSleepPeriod,
		waitForAttachTimeout,
		hostName,
		vm.desiredStateOfWorld,
		vm.actualStateOfWorld,
		vm.operationExecutor)
	vm.desiredStateOfWorldPopulator = populator.NewDesiredStateOfWorldPopulator(
		kubeClient,
		desiredStateOfWorldPopulatorLoopSleepPeriod,
		podManager,
		vm.desiredStateOfWorld)

	return vm, nil
}

// Calls Run()
// Verifies there are no calls to attach, detach, mount, unmount, etc.
func Test_Run_Positive_DoNothing(t *testing.T) {
	// Arrange
	nodeName := "myhostname"
	volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
	dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
	asw := cache.NewActualStateOfWorld(nodeName, volumePluginMgr)
	oex := operationexecutor.NewOperationExecutor(volumePluginMgr)
	reconciler := NewReconciler(
		false, /* controllerAttachDetachEnabled */
		reconcilerLoopSleepDuration,
		waitForAttachTimeout,
		nodeName,
		dsw,
		asw,
		oex)

	// Act
	go reconciler.Run(wait.NeverStop)

	// Assert
	assert.NoError(t, volumetesting.VerifyZeroAttachCalls(fakePlugin))
	assert.NoError(t, volumetesting.VerifyZeroWaitForAttachCallCount(fakePlugin))
	assert.NoError(t, volumetesting.VerifyZeroMountDeviceCallCount(fakePlugin))
	assert.NoError(t, volumetesting.VerifyZeroSetUpCallCount(fakePlugin))
	assert.NoError(t, volumetesting.VerifyZeroTearDownCallCount(fakePlugin))
	assert.NoError(t, volumetesting.VerifyZeroDetachCallCount(fakePlugin))
}

// Populates desiredStateOfWorld cache with one node/volume/pod tuple.
// Calls Run()
// Verifies there is one attach call and no detach calls.
// Marks the node/volume as unmounted.
// Deletes the node/volume/pod tuple from desiredStateOfWorld cache.
// Verifies there is one detach call and no (new) attach calls.
func Test_Run_Positive_OneDesiredVolumeAttachThenDetachWithUnmountedVolume(t *testing.T) {
	// Arrange
	volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
	dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
	asw := cache.NewActualStateOfWorld(volumePluginMgr)
	fakeKubeClient := controllervolumetesting.CreateTestClient()
	ad := operationexecutor.NewOperationExecutor(fakeKubeClient, volumePluginMgr)
	nsu := statusupdater.NewFakeNodeStatusUpdater(false /* returnError */)
	reconciler := NewReconciler(
		reconcilerLoopPeriod, maxWaitForUnmountDuration, dsw, asw, ad, nsu)
	podName := "pod-uid"
	volumeName := api.UniqueVolumeName("volume-name")
	volumeSpec := controllervolumetesting.GetTestVolumeSpec(string(volumeName), volumeName)
	nodeName := "node-name"
	dsw.AddNode(nodeName)
	volumeExists := dsw.VolumeExists(volumeName, nodeName)
	if volumeExists {
		t.Fatalf(
			"Volume %q/node %q should not exist, but it does.",
			volumeName,
			nodeName)
	}

	generatedVolumeName, podAddErr := dsw.AddPod(types.UniquePodName(podName), controllervolumetesting.NewPod(podName, podName), volumeSpec, nodeName)
	if podAddErr != nil {
		t.Fatalf("AddPod failed. Expected: <no error> Actual: <%v>", podAddErr)
	}

	// Act
	ch := make(chan struct{})
	go reconciler.Run(ch)
	defer close(ch)

	// Assert
	waitForNewAttacherCallCount(t, 1 /* expectedCallCount */, fakePlugin)
	verifyNewAttacherCallCount(t, false /* expectZeroNewAttacherCallCount */, fakePlugin)
	waitForAttachCallCount(t, 1 /* expectedAttachCallCount */, fakePlugin)
	verifyNewDetacherCallCount(t, true /* expectZeroNewDetacherCallCount */, fakePlugin)
	waitForDetachCallCount(t, 0 /* expectedDetachCallCount */, fakePlugin)

	// Act
	dsw.DeletePod(types.UniquePodName(podName), generatedVolumeName, nodeName)
	volumeExists = dsw.VolumeExists(generatedVolumeName, nodeName)
	if volumeExists {
		t.Fatalf(
			"Deleted pod %q from volume %q/node %q. Volume should also be deleted but it still exists.",
			podName,
			generatedVolumeName,
			nodeName)
	}
	asw.SetVolumeMountedByNode(generatedVolumeName, nodeName, true /* mounted */)
	asw.SetVolumeMountedByNode(generatedVolumeName, nodeName, false /* mounted */)

	// Assert
	waitForNewDetacherCallCount(t, 1 /* expectedCallCount */, fakePlugin)
	verifyNewAttacherCallCount(t, false /* expectZeroNewAttacherCallCount */, fakePlugin)
	waitForAttachCallCount(t, 1 /* expectedAttachCallCount */, fakePlugin)
	verifyNewDetacherCallCount(t, false /* expectZeroNewDetacherCallCount */, fakePlugin)
	waitForDetachCallCount(t, 1 /* expectedDetachCallCount */, fakePlugin)
}

// NewAttachDetachController returns a new instance of AttachDetachController.
func NewAttachDetachController(
	kubeClient internalclientset.Interface,
	podInformer framework.SharedInformer,
	nodeInformer framework.SharedInformer,
	pvcInformer framework.SharedInformer,
	pvInformer framework.SharedInformer,
	cloud cloudprovider.Interface,
	plugins []volume.VolumePlugin) (AttachDetachController, error) {
	// TODO: The default resyncPeriod for shared informers is 12 hours, this is
	// unacceptable for the attach/detach controller. For example, if a pod is
	// skipped because the node it is scheduled to didn't set its annotation in
	// time, we don't want to have to wait 12hrs before processing the pod
	// again.
	// Luckily https://github.com/kubernetes/kubernetes/issues/23394 is being
	// worked on and will split resync in to resync and relist. Once that
	// happens the resync period can be set to something much faster (30
	// seconds).
	// If that issue is not resolved in time, then this controller will have to
	// consider some unappealing alternate options: use a non-shared informer
	// and set a faster resync period even if it causes relist, or requeue
	// dropped pods so they are continuously processed until it is accepted or
	// deleted (probably can't do this with sharedInformer), etc.
	adc := &attachDetachController{
		kubeClient:  kubeClient,
		pvcInformer: pvcInformer,
		pvInformer:  pvInformer,
		cloud:       cloud,
	}

	podInformer.AddEventHandler(framework.ResourceEventHandlerFuncs{
		AddFunc:    adc.podAdd,
		UpdateFunc: adc.podUpdate,
		DeleteFunc: adc.podDelete,
	})

	nodeInformer.AddEventHandler(framework.ResourceEventHandlerFuncs{
		AddFunc:    adc.nodeAdd,
		UpdateFunc: adc.nodeUpdate,
		DeleteFunc: adc.nodeDelete,
	})

	if err := adc.volumePluginMgr.InitPlugins(plugins, adc); err != nil {
		return nil, fmt.Errorf("Could not initialize volume plugins for Attach/Detach Controller: %+v", err)
	}

	adc.desiredStateOfWorld = cache.NewDesiredStateOfWorld(&adc.volumePluginMgr)
	adc.actualStateOfWorld = cache.NewActualStateOfWorld(&adc.volumePluginMgr)
	adc.attacherDetacher =
		operationexecutor.NewOperationExecutor(&adc.volumePluginMgr)
	adc.reconciler = reconciler.NewReconciler(
		reconcilerLoopPeriod,
		reconcilerMaxWaitForUnmountDuration,
		adc.desiredStateOfWorld,
		adc.actualStateOfWorld,
		adc.attacherDetacher)

	return adc, nil
}

// NewVolumeManager returns a new concrete instance implementing the
// VolumeManager interface.
//
// kubeClient - kubeClient is the kube API client used by DesiredStateOfWorldPopulator
//   to communicate with the API server to fetch PV and PVC objects
// volumePluginMgr - the volume plugin manager used to access volume plugins.
//   Must be pre-initialized.
func NewVolumeManager(
	controllerAttachDetachEnabled bool,
	nodeName k8stypes.NodeName,
	podManager pod.Manager,
	kubeClient clientset.Interface,
	volumePluginMgr *volume.VolumePluginMgr,
	kubeContainerRuntime kubecontainer.Runtime,
	mounter mount.Interface,
	kubeletPodsDir string,
	recorder record.EventRecorder,
	checkNodeCapabilitiesBeforeMount bool) (VolumeManager, error) {

	vm := &volumeManager{
		kubeClient:          kubeClient,
		volumePluginMgr:     volumePluginMgr,
		desiredStateOfWorld: cache.NewDesiredStateOfWorld(volumePluginMgr),
		actualStateOfWorld:  cache.NewActualStateOfWorld(nodeName, volumePluginMgr),
		operationExecutor: operationexecutor.NewOperationExecutor(operationexecutor.NewOperationGenerator(
			kubeClient,
			volumePluginMgr,
			recorder,
			checkNodeCapabilitiesBeforeMount),
		),
	}

	vm.reconciler = reconciler.NewReconciler(
		kubeClient,
		controllerAttachDetachEnabled,
		reconcilerLoopSleepPeriod,
		reconcilerSyncStatesSleepPeriod,
		waitForAttachTimeout,
		nodeName,
		vm.desiredStateOfWorld,
		vm.actualStateOfWorld,
		vm.operationExecutor,
		mounter,
		volumePluginMgr,
		kubeletPodsDir)
	vm.desiredStateOfWorldPopulator = populator.NewDesiredStateOfWorldPopulator(
		kubeClient,
		desiredStateOfWorldPopulatorLoopSleepPeriod,
		desiredStateOfWorldPopulatorGetPodStatusRetryDuration,
		podManager,
		vm.desiredStateOfWorld,
		kubeContainerRuntime)

	return vm, nil
}

// NewVolumeManager returns a new concrete instance implementing the
// VolumeManager interface.
//
// kubeClient - kubeClient is the kube API client used by DesiredStateOfWorldPopulator
//   to communicate with the API server to fetch PV and PVC objects
// volumePluginMgr - the volume plugin manager used to access volume plugins.
//   Must be pre-initialized.
func NewVolumeManager(
	controllerAttachDetachEnabled bool,
	hostName string,
	podManager pod.Manager,
	kubeClient internalclientset.Interface,
	volumePluginMgr *volume.VolumePluginMgr,
	kubeContainerRuntime kubecontainer.Runtime,
	mounter mount.Interface,
	kubeletPodsDir string,
	recorder record.EventRecorder) (VolumeManager, error) {

	vm := &volumeManager{
		kubeClient:          kubeClient,
		volumePluginMgr:     volumePluginMgr,
		desiredStateOfWorld: cache.NewDesiredStateOfWorld(volumePluginMgr),
		actualStateOfWorld:  cache.NewActualStateOfWorld(hostName, volumePluginMgr),
		operationExecutor: operationexecutor.NewOperationExecutor(
			kubeClient,
			volumePluginMgr,
			recorder),
	}

	vm.reconciler = reconciler.NewReconciler(
		kubeClient,
		controllerAttachDetachEnabled,
		reconcilerLoopSleepPeriod,
		reconcilerReconstructSleepPeriod,
		waitForAttachTimeout,
		hostName,
		vm.desiredStateOfWorld,
		vm.actualStateOfWorld,
		vm.operationExecutor,
		mounter,
		volumePluginMgr,
		kubeletPodsDir)
	vm.desiredStateOfWorldPopulator = populator.NewDesiredStateOfWorldPopulator(
		kubeClient,
		desiredStateOfWorldPopulatorLoopSleepPeriod,
		desiredStateOfWorldPopulatorGetPodStatusRetryDuration,
		podManager,
		vm.desiredStateOfWorld,
		kubeContainerRuntime)

	return vm, nil
}

// Calls Run()
// Verifies there are no calls to attach or detach.
func Test_Run_Positive_DoNothing(t *testing.T) {
	// Arrange
	volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
	dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
	asw := cache.NewActualStateOfWorld(volumePluginMgr)
	ad := operationexecutor.NewOperationExecutor(volumePluginMgr)
	reconciler := NewReconciler(
		reconcilerLoopPeriod, maxWaitForUnmountDuration, dsw, asw, ad)

	// Act
	go reconciler.Run(wait.NeverStop)

	// Assert
	waitForNewAttacherCallCount(t, 0 /* expectedCallCount */, fakePlugin)
	verifyNewAttacherCallCount(t, true /* expectZeroNewAttacherCallCount */, fakePlugin)
	verifyNewDetacherCallCount(t, true /* expectZeroNewDetacherCallCount */, fakePlugin)
	waitForAttachCallCount(t, 0 /* expectedAttachCallCount */, fakePlugin)
	waitForDetachCallCount(t, 0 /* expectedDetachCallCount */, fakePlugin)
}

// Populates desiredStateOfWorld cache with one node/volume/pod tuple.
// Calls Run()
// Verifies there is one attach call and no detach calls.
func Test_Run_Positive_OneDesiredVolumeAttach(t *testing.T) {
	// Arrange
	volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
	dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
	asw := cache.NewActualStateOfWorld(volumePluginMgr)
	fakeKubeClient := controllervolumetesting.CreateTestClient()
	fakeRecorder := &record.FakeRecorder{}
	ad := operationexecutor.NewOperationExecutor(operationexecutor.NewOperationGenerator(fakeKubeClient, volumePluginMgr, fakeRecorder, false /* checkNodeCapabilitiesBeforeMount */))
	nsu := statusupdater.NewFakeNodeStatusUpdater(false /* returnError */)
	reconciler := NewReconciler(
		reconcilerLoopPeriod, maxWaitForUnmountDuration, syncLoopPeriod, false, dsw, asw, ad, nsu)
	podName := "pod-uid"
	volumeName := v1.UniqueVolumeName("volume-name")
	volumeSpec := controllervolumetesting.GetTestVolumeSpec(string(volumeName), volumeName)
	nodeName := k8stypes.NodeName("node-name")
	dsw.AddNode(nodeName)
	volumeExists := dsw.VolumeExists(volumeName, nodeName)
	if volumeExists {
		t.Fatalf(
			"Volume %q/node %q should not exist, but it does.",
			volumeName,
			nodeName)
	}

	_, podErr := dsw.AddPod(types.UniquePodName(podName), controllervolumetesting.NewPod(podName, podName), volumeSpec, nodeName)
	if podErr != nil {
		t.Fatalf("AddPod failed. Expected: <no error> Actual: <%v>", podErr)
	}

	// Act
	ch := make(chan struct{})
	go reconciler.Run(ch)
	defer close(ch)

	// Assert
	waitForNewAttacherCallCount(t, 1 /* expectedCallCount */, fakePlugin)
	waitForAttachCallCount(t, 1 /* expectedAttachCallCount */, fakePlugin)
	verifyNewDetacherCallCount(t, true /* expectZeroNewDetacherCallCount */, fakePlugin)
}

// Populates desiredStateOfWorld cache with one volume/pod.
// Calls Run()
// Verifies there is one attach/mount/etc call and no detach calls.
// Deletes volume/pod from desired state of world.
// Verifies detach/unmount calls are issued.
func Test_Run_Positive_VolumeAttachMountUnmountDetach(t *testing.T) {
	// Arrange
	volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
	dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
	asw := cache.NewActualStateOfWorld(nodeName, volumePluginMgr)
	kubeClient := createTestClient()
	fakeRecorder := &record.FakeRecorder{}
	oex := operationexecutor.NewOperationExecutor(kubeClient, volumePluginMgr, fakeRecorder)
	reconciler := NewReconciler(
		kubeClient,
		false, /* controllerAttachDetachEnabled */
		reconcilerLoopSleepDuration,
		reconcilerReconstructSleepPeriod,
		waitForAttachTimeout,
		nodeName,
		dsw,
		asw,
		oex,
		&mount.FakeMounter{},
		volumePluginMgr,
		kubeletPodsDir)
	pod := &api.Pod{
		ObjectMeta: api.ObjectMeta{
			Name: "pod1",
			UID:  "pod1uid",
		},
		Spec: api.PodSpec{
			Volumes: []api.Volume{
				{
					Name: "volume-name",
					VolumeSource: api.VolumeSource{
						GCEPersistentDisk: &api.GCEPersistentDiskVolumeSource{
							PDName: "fake-device1",
						},
					},
				},
			},
		},
	}

	volumeSpec := &volume.Spec{Volume: &pod.Spec.Volumes[0]}
	podName := volumehelper.GetUniquePodName(pod)
	generatedVolumeName, err := dsw.AddPodToVolume(
		podName, pod, volumeSpec, volumeSpec.Name(), "" /* volumeGidValue */)

	// Assert
	if err != nil {
		t.Fatalf("AddPodToVolume failed. Expected: <no error> Actual: <%v>", err)
	}

	// Act
	runReconciler(reconciler)
	waitForMount(t, fakePlugin, generatedVolumeName, asw)
	// Assert
	assert.NoError(t, volumetesting.VerifyAttachCallCount(
		1 /* expectedAttachCallCount */, fakePlugin))
	assert.NoError(t, volumetesting.VerifyWaitForAttachCallCount(
		1 /* expectedWaitForAttachCallCount */, fakePlugin))
	assert.NoError(t, volumetesting.VerifyMountDeviceCallCount(
		1 /* expectedMountDeviceCallCount */, fakePlugin))
	assert.NoError(t, volumetesting.VerifySetUpCallCount(
		1 /* expectedSetUpCallCount */, fakePlugin))
	assert.NoError(t, volumetesting.VerifyZeroTearDownCallCount(fakePlugin))
	assert.NoError(t, volumetesting.VerifyZeroDetachCallCount(fakePlugin))

	// Act
	dsw.DeletePodFromVolume(podName, generatedVolumeName)
	waitForDetach(t, fakePlugin, generatedVolumeName, asw)

	// Assert
	assert.NoError(t, volumetesting.VerifyTearDownCallCount(
		1 /* expectedTearDownCallCount */, fakePlugin))
	assert.NoError(t, volumetesting.VerifyDetachCallCount(
		1 /* expectedDetachCallCount */, fakePlugin))
}

// NewAttachDetachController returns a new instance of AttachDetachController.
func NewAttachDetachController(
	kubeClient clientset.Interface,
	podInformer kcache.SharedInformer,
	nodeInformer kcache.SharedInformer,
	pvcInformer kcache.SharedInformer,
	pvInformer kcache.SharedInformer,
	cloud cloudprovider.Interface,
	plugins []volume.VolumePlugin,
	disableReconciliationSync bool,
	reconcilerSyncDuration time.Duration) (AttachDetachController, error) {
	// TODO: The default resyncPeriod for shared informers is 12 hours, this is
	// unacceptable for the attach/detach controller. For example, if a pod is
	// skipped because the node it is scheduled to didn't set its annotation in
	// time, we don't want to have to wait 12hrs before processing the pod
	// again.
	// Luckily https://github.com/kubernetes/kubernetes/issues/23394 is being
	// worked on and will split resync in to resync and relist. Once that
	// happens the resync period can be set to something much faster (30
	// seconds).
	// If that issue is not resolved in time, then this controller will have to
	// consider some unappealing alternate options: use a non-shared informer
	// and set a faster resync period even if it causes relist, or requeue
	// dropped pods so they are continuously processed until it is accepted or
	// deleted (probably can't do this with sharedInformer), etc.
	adc := &attachDetachController{
		kubeClient:  kubeClient,
		pvcInformer: pvcInformer,
		pvInformer:  pvInformer,
		cloud:       cloud,
	}

	podInformer.AddEventHandler(kcache.ResourceEventHandlerFuncs{
		AddFunc:    adc.podAdd,
		UpdateFunc: adc.podUpdate,
		DeleteFunc: adc.podDelete,
	})

	nodeInformer.AddEventHandler(kcache.ResourceEventHandlerFuncs{
		AddFunc:    adc.nodeAdd,
		UpdateFunc: adc.nodeUpdate,
		DeleteFunc: adc.nodeDelete,
	})

	if err := adc.volumePluginMgr.InitPlugins(plugins, adc); err != nil {
		return nil, fmt.Errorf("Could not initialize volume plugins for Attach/Detach Controller: %+v", err)
	}

	eventBroadcaster := record.NewBroadcaster()
	eventBroadcaster.StartLogging(glog.Infof)
	eventBroadcaster.StartRecordingToSink(&v1core.EventSinkImpl{Interface: kubeClient.Core().Events("")})
	recorder := eventBroadcaster.NewRecorder(v1.EventSource{Component: "attachdetach"})

	adc.desiredStateOfWorld = cache.NewDesiredStateOfWorld(&adc.volumePluginMgr)
	adc.actualStateOfWorld = cache.NewActualStateOfWorld(&adc.volumePluginMgr)
	adc.attacherDetacher =
		operationexecutor.NewOperationExecutor(operationexecutor.NewOperationGenerator(
			kubeClient,
			&adc.volumePluginMgr,
			recorder,
			false)) // flag for experimental binary check for volume mount
	adc.nodeStatusUpdater = statusupdater.NewNodeStatusUpdater(
		kubeClient, nodeInformer, adc.actualStateOfWorld)

	// Default these to values in options
	adc.reconciler = reconciler.NewReconciler(
		reconcilerLoopPeriod,
		reconcilerMaxWaitForUnmountDuration,
		reconcilerSyncDuration,
		disableReconciliationSync,
		adc.desiredStateOfWorld,
		adc.actualStateOfWorld,
		adc.attacherDetacher,
		adc.nodeStatusUpdater)

	adc.desiredStateOfWorldPopulator = populator.NewDesiredStateOfWorldPopulator(
		desiredStateOfWorldPopulatorLoopSleepPeriod,
		podInformer,
		adc.desiredStateOfWorld)

	return adc, nil
}