Golang Clientset.AddReactor方法代码示例

func addUpdatePodsReactor(fakeClient *fake.Clientset) *fake.Clientset {
	fakeClient.AddReactor("update", "pods", func(action core.Action) (handled bool, ret runtime.Object, err error) {
		obj := action.(testclient.UpdateAction).GetObject().(*api.Pod)
		return true, obj, nil
	})
	return fakeClient
}

func addUpdateRSReactor(fakeClient *fake.Clientset) *fake.Clientset {
	fakeClient.AddReactor("update", "replicasets", func(action core.Action) (handled bool, ret runtime.Object, err error) {
		obj := action.(testclient.UpdateAction).GetObject().(*extensions.ReplicaSet)
		return true, obj, nil
	})
	return fakeClient
}

func newVolumeReactor(client *fake.Clientset, ctrl *PersistentVolumeController, volumeSource *framework.FakePVControllerSource, claimSource *framework.FakePVCControllerSource, errors []reactorError) *volumeReactor {
	reactor := &volumeReactor{
		volumes:      make(map[string]*api.PersistentVolume),
		claims:       make(map[string]*api.PersistentVolumeClaim),
		ctrl:         ctrl,
		volumeSource: volumeSource,
		claimSource:  claimSource,
		errors:       errors,
	}
	client.AddReactor("*", "*", reactor.React)
	return reactor
}

func TestSyncBatchIgnoresNotFound(t *testing.T) {
	client := fake.Clientset{}
	syncer := newTestManager(&client)
	client.AddReactor("get", "pods", func(action core.Action) (bool, runtime.Object, error) {
		return true, nil, errors.NewNotFound(api.Resource("pods"), "test-pod")
	})
	syncer.SetPodStatus(getTestPod(), getRandomPodStatus())
	syncer.testSyncBatch()

	verifyActions(t, syncer.kubeClient, []core.Action{
		core.GetActionImpl{ActionImpl: core.ActionImpl{Verb: "get", Resource: "pods"}},
	})
}

func addGetRSReactor(fakeClient *fake.Clientset, obj runtime.Object) *fake.Clientset {
	rsList, ok := obj.(*extensions.ReplicaSetList)
	fakeClient.AddReactor("get", "replicasets", func(action core.Action) (handled bool, ret runtime.Object, err error) {
		name := action.(testclient.GetAction).GetName()
		if ok {
			for _, rs := range rsList.Items {
				if rs.Name == name {
					return true, &rs, nil
				}
			}
		}
		return false, nil, fmt.Errorf("could not find the requested replica set: %s", name)

	})
	return fakeClient
}

func TestDeploymentController_scaleDownOldReplicaSetsForRollingUpdate(t *testing.T) {
	tests := []struct {
		deploymentReplicas  int
		maxUnavailable      intstr.IntOrString
		readyPods           int
		oldReplicas         int
		scaleExpected       bool
		expectedOldReplicas int
	}{
		{
			deploymentReplicas: 10,
			maxUnavailable:     intstr.FromInt(0),
			readyPods:          10,
			oldReplicas:        10,
			scaleExpected:      false,
		},
		{
			deploymentReplicas:  10,
			maxUnavailable:      intstr.FromInt(2),
			readyPods:           10,
			oldReplicas:         10,
			scaleExpected:       true,
			expectedOldReplicas: 8,
		},
		{
			deploymentReplicas: 10,
			maxUnavailable:     intstr.FromInt(2),
			readyPods:          8,
			oldReplicas:        10,
			scaleExpected:      false,
		},
		{
			deploymentReplicas: 10,
			maxUnavailable:     intstr.FromInt(2),
			readyPods:          10,
			oldReplicas:        0,
			scaleExpected:      false,
		},
	}

	for i, test := range tests {
		t.Logf("executing scenario %d", i)
		oldRS := rs("foo-v2", test.oldReplicas, nil)
		allRSs := []*exp.ReplicaSet{oldRS}
		oldRSs := []*exp.ReplicaSet{oldRS}
		deployment := deployment("foo", test.deploymentReplicas, intstr.FromInt(0), test.maxUnavailable)
		fakeClientset := fake.Clientset{}
		fakeClientset.AddReactor("list", "pods", func(action core.Action) (handled bool, ret runtime.Object, err error) {
			switch action.(type) {
			case core.ListAction:
				podList := &api.PodList{}
				for podIndex := 0; podIndex < test.readyPods; podIndex++ {
					podList.Items = append(podList.Items, api.Pod{
						ObjectMeta: api.ObjectMeta{
							Name:   fmt.Sprintf("%s-pod-%d", oldRS.Name, podIndex),
							Labels: map[string]string{"foo": "bar"},
						},
						Status: api.PodStatus{
							Conditions: []api.PodCondition{
								{
									Type:   api.PodReady,
									Status: api.ConditionTrue,
								},
							},
						},
					})
				}
				return true, podList, nil
			}
			return false, nil, nil
		})
		controller := &DeploymentController{
			client:        &fakeClientset,
			eventRecorder: &record.FakeRecorder{},
		}
		scaled, err := controller.scaleDownOldReplicaSetsForRollingUpdate(allRSs, oldRSs, &deployment)
		if err != nil {
			t.Errorf("unexpected error: %v", err)
			continue
		}
		if !test.scaleExpected {
			if scaled != 0 {
				t.Errorf("unexpected scaling: %v", fakeClientset.Actions())
			}
			continue
		}
		if test.scaleExpected && scaled == 0 {
			t.Errorf("expected scaling to occur; actions: %v", fakeClientset.Actions())
			continue
		}
		// There are both list and update actions logged, so extract the update
		// action for verification.
		var updateAction testclient.UpdateAction
		for _, action := range fakeClientset.Actions() {
			switch a := action.(type) {
			case testclient.UpdateAction:
				if updateAction != nil {
					t.Errorf("expected only 1 update action; had %v and found %v", updateAction, a)
				} else {
					updateAction = a
//.........这里部分代码省略.........

func TestDeploymentController_cleanupUnhealthyReplicas(t *testing.T) {
	tests := []struct {
		oldReplicas          int
		readyPods            int
		unHealthyPods        int
		maxCleanupCount      int
		cleanupCountExpected int
	}{
		{
			oldReplicas:          10,
			readyPods:            8,
			unHealthyPods:        2,
			maxCleanupCount:      1,
			cleanupCountExpected: 1,
		},
		{
			oldReplicas:          10,
			readyPods:            8,
			unHealthyPods:        2,
			maxCleanupCount:      3,
			cleanupCountExpected: 2,
		},
		{
			oldReplicas:          10,
			readyPods:            8,
			unHealthyPods:        2,
			maxCleanupCount:      0,
			cleanupCountExpected: 0,
		},
		{
			oldReplicas:          10,
			readyPods:            10,
			unHealthyPods:        0,
			maxCleanupCount:      3,
			cleanupCountExpected: 0,
		},
	}

	for i, test := range tests {
		t.Logf("executing scenario %d", i)
		oldRS := rs("foo-v2", test.oldReplicas, nil)
		oldRSs := []*exp.ReplicaSet{oldRS}
		deployment := deployment("foo", 10, intstr.FromInt(2), intstr.FromInt(2))
		fakeClientset := fake.Clientset{}
		fakeClientset.AddReactor("list", "pods", func(action core.Action) (handled bool, ret runtime.Object, err error) {
			switch action.(type) {
			case core.ListAction:
				podList := &api.PodList{}
				for podIndex := 0; podIndex < test.readyPods; podIndex++ {
					podList.Items = append(podList.Items, api.Pod{
						ObjectMeta: api.ObjectMeta{
							Name: fmt.Sprintf("%s-readyPod-%d", oldRS.Name, podIndex),
						},
						Status: api.PodStatus{
							Conditions: []api.PodCondition{
								{
									Type:   api.PodReady,
									Status: api.ConditionTrue,
								},
							},
						},
					})
				}
				for podIndex := 0; podIndex < test.unHealthyPods; podIndex++ {
					podList.Items = append(podList.Items, api.Pod{
						ObjectMeta: api.ObjectMeta{
							Name: fmt.Sprintf("%s-unHealthyPod-%d", oldRS.Name, podIndex),
						},
						Status: api.PodStatus{
							Conditions: []api.PodCondition{
								{
									Type:   api.PodReady,
									Status: api.ConditionFalse,
								},
							},
						},
					})
				}
				return true, podList, nil
			}
			return false, nil, nil
		})

		controller := &DeploymentController{
			client:        &fakeClientset,
			eventRecorder: &record.FakeRecorder{},
		}
		cleanupCount, err := controller.cleanupUnhealthyReplicas(oldRSs, &deployment, test.maxCleanupCount)
		if err != nil {
			t.Errorf("unexpected error: %v", err)
			continue
		}
		if cleanupCount != test.cleanupCountExpected {
			t.Errorf("expected %v unhealthy replicas been cleaned up, got %v", test.cleanupCountExpected, cleanupCount)
			continue
		}
	}
}

func TestDeploymentController_reconcileOldReplicaSets(t *testing.T) {
	tests := []struct {
		deploymentReplicas  int
		maxUnavailable      intstr.IntOrString
		oldReplicas         int
		newReplicas         int
		readyPodsFromOldRS  int
		readyPodsFromNewRS  int
		scaleExpected       bool
		expectedOldReplicas int
	}{
		{
			deploymentReplicas: 10,
			maxUnavailable:     intstr.FromInt(0),
			oldReplicas:        10,
			newReplicas:        0,
			readyPodsFromOldRS: 10,
			readyPodsFromNewRS: 0,
			scaleExpected:      false,
		},
		{
			deploymentReplicas:  10,
			maxUnavailable:      intstr.FromInt(2),
			oldReplicas:         10,
			newReplicas:         0,
			readyPodsFromOldRS:  10,
			readyPodsFromNewRS:  0,
			scaleExpected:       true,
			expectedOldReplicas: 8,
		},
		{ // expect unhealthy replicas from old replica sets been cleaned up
			deploymentReplicas:  10,
			maxUnavailable:      intstr.FromInt(2),
			oldReplicas:         10,
			newReplicas:         0,
			readyPodsFromOldRS:  8,
			readyPodsFromNewRS:  0,
			scaleExpected:       true,
			expectedOldReplicas: 8,
		},
		{ // expect 1 unhealthy replica from old replica sets been cleaned up, and 1 ready pod been scaled down
			deploymentReplicas:  10,
			maxUnavailable:      intstr.FromInt(2),
			oldReplicas:         10,
			newReplicas:         0,
			readyPodsFromOldRS:  9,
			readyPodsFromNewRS:  0,
			scaleExpected:       true,
			expectedOldReplicas: 8,
		},
		{ // the unavailable pods from the newRS would not make us scale down old RSs in a further step
			deploymentReplicas: 10,
			maxUnavailable:     intstr.FromInt(2),
			oldReplicas:        8,
			newReplicas:        2,
			readyPodsFromOldRS: 8,
			readyPodsFromNewRS: 0,
			scaleExpected:      false,
		},
	}
	for i, test := range tests {
		t.Logf("executing scenario %d", i)

		newSelector := map[string]string{"foo": "new"}
		oldSelector := map[string]string{"foo": "old"}
		newRS := rs("foo-new", test.newReplicas, newSelector)
		oldRS := rs("foo-old", test.oldReplicas, oldSelector)
		oldRSs := []*exp.ReplicaSet{oldRS}
		allRSs := []*exp.ReplicaSet{oldRS, newRS}

		deployment := deployment("foo", test.deploymentReplicas, intstr.FromInt(0), test.maxUnavailable)
		fakeClientset := fake.Clientset{}
		fakeClientset.AddReactor("list", "pods", func(action core.Action) (handled bool, ret runtime.Object, err error) {
			switch action.(type) {
			case core.ListAction:
				podList := &api.PodList{}
				for podIndex := 0; podIndex < test.readyPodsFromOldRS; podIndex++ {
					podList.Items = append(podList.Items, api.Pod{
						ObjectMeta: api.ObjectMeta{
							Name:   fmt.Sprintf("%s-oldReadyPod-%d", oldRS.Name, podIndex),
							Labels: oldSelector,
						},
						Status: api.PodStatus{
							Conditions: []api.PodCondition{
								{
									Type:   api.PodReady,
									Status: api.ConditionTrue,
								},
							},
						},
					})
				}
				for podIndex := 0; podIndex < test.oldReplicas-test.readyPodsFromOldRS; podIndex++ {
					podList.Items = append(podList.Items, api.Pod{
						ObjectMeta: api.ObjectMeta{
							Name:   fmt.Sprintf("%s-oldUnhealthyPod-%d", oldRS.Name, podIndex),
							Labels: oldSelector,
						},
						Status: api.PodStatus{
							Conditions: []api.PodCondition{
//.........这里部分代码省略.........

func addListPodsReactor(fakeClient *fake.Clientset, obj runtime.Object) *fake.Clientset {
	fakeClient.AddReactor("list", "pods", func(action core.Action) (handled bool, ret runtime.Object, err error) {
		return true, obj, nil
	})
	return fakeClient
}