Golang errors.IsNotFound函数代码示例

// makeImageStreamTagAdmissionUsageFunc returns a function that computes a resource usage for given image
// stream tag during admission.
func makeImageStreamTagAdmissionUsageFunc(isNamespacer osclient.ImageStreamsNamespacer) generic.UsageFunc {
	return func(object runtime.Object) kapi.ResourceList {
		ist, ok := object.(*imageapi.ImageStreamTag)
		if !ok {
			return kapi.ResourceList{}
		}

		res := map[kapi.ResourceName]resource.Quantity{
			imageapi.ResourceImageStreams: *resource.NewQuantity(0, resource.BinarySI),
		}

		isName, _, err := imageapi.ParseImageStreamTagName(ist.Name)
		if err != nil {
			utilruntime.HandleError(err)
			return kapi.ResourceList{}
		}

		is, err := isNamespacer.ImageStreams(ist.Namespace).Get(isName)
		if err != nil && !kerrors.IsNotFound(err) {
			utilruntime.HandleError(fmt.Errorf("failed to get image stream %s/%s: %v", ist.Namespace, isName, err))
		}
		if is == nil || kerrors.IsNotFound(err) {
			res[imageapi.ResourceImageStreams] = *resource.NewQuantity(1, resource.BinarySI)
		}

		return res
	}
}

// CancelBuild updates a build status to Cancelled, after its associated pod is deleted.
func (bc *BuildController) CancelBuild(build *buildapi.Build) error {
	if !isBuildCancellable(build) {
		glog.V(4).Infof("Build %s/%s can be cancelled only if it has pending/running status, not %s.", build.Namespace, build.Name, build.Status.Phase)
		return nil
	}

	glog.V(4).Infof("Cancelling Build %s/%s.", build.Namespace, build.Name)

	pod, err := bc.PodManager.GetPod(build.Namespace, buildutil.GetBuildPodName(build))
	if err != nil {
		if !errors.IsNotFound(err) {
			return fmt.Errorf("Failed to get Pod for build %s/%s: %v", build.Namespace, build.Name, err)
		}
	} else {
		err := bc.PodManager.DeletePod(build.Namespace, pod)
		if err != nil && !errors.IsNotFound(err) {
			return fmt.Errorf("Couldn't delete Build Pod %s/%s: %v", build.Namespace, pod.Name, err)
		}
	}

	build.Status.Phase = buildapi.BuildPhaseCancelled
	now := util.Now()
	build.Status.CompletionTimestamp = &now
	if err := bc.BuildUpdater.Update(build.Namespace, build); err != nil {
		return fmt.Errorf("Failed to update Build %s/%s: %v", build.Namespace, build.Name, err)
	}

	glog.V(4).Infof("Build %s/%s was successfully cancelled.", build.Namespace, build.Name)
	return nil
}

// Ensure that when a deploymentRollback is created for a deployment that has already been deleted
// by the API server, API server returns not-found error.
func TestEtcdCreateDeploymentRollbackNoDeployment(t *testing.T) {
	storage, server := newStorage(t)
	defer server.Terminate(t)
	rollbackStorage := storage.Rollback
	ctx := api.WithNamespace(api.NewContext(), namespace)

	key, _ := storage.Deployment.KeyFunc(ctx, name)
	key = etcdtest.AddPrefix(key)
	_, err := rollbackStorage.Create(ctx, &extensions.DeploymentRollback{
		Name:               name,
		UpdatedAnnotations: map[string]string{},
		RollbackTo:         extensions.RollbackConfig{Revision: 1},
	})
	if err == nil {
		t.Fatalf("Expected not-found-error but got nothing")
	}
	if !errors.IsNotFound(etcderrors.InterpretGetError(err, extensions.Resource("deployments"), name)) {
		t.Fatalf("Unexpected error returned: %#v", err)
	}

	_, err = storage.Deployment.Get(ctx, name)
	if err == nil {
		t.Fatalf("Expected not-found-error but got nothing")
	}
	if !errors.IsNotFound(etcderrors.InterpretGetError(err, extensions.Resource("deployments"), name)) {
		t.Fatalf("Unexpected error: %v", err)
	}
}

func (f *Framework) deleteFederationNs() {
	ns := f.FederationNamespace
	By(fmt.Sprintf("Destroying federation namespace %q for this suite.", ns.Name))
	timeout := 5 * time.Minute
	if f.NamespaceDeletionTimeout != 0 {
		timeout = f.NamespaceDeletionTimeout
	}

	clientset := f.FederationClientset_1_4
	// First delete the namespace from federation apiserver.
	if err := clientset.Core().Namespaces().Delete(ns.Name, &api.DeleteOptions{}); err != nil {
		Failf("Error while deleting federation namespace %s: %s", ns.Name, err)
	}
	// Verify that it got deleted.
	err := wait.PollImmediate(5*time.Second, timeout, func() (bool, error) {
		if _, err := clientset.Core().Namespaces().Get(ns.Name); err != nil {
			if apierrs.IsNotFound(err) {
				return true, nil
			}
			Logf("Error while waiting for namespace to be terminated: %v", err)
			return false, nil
		}
		return false, nil
	})
	if err != nil {
		if !apierrs.IsNotFound(err) {
			Failf("Couldn't delete ns %q: %s", ns.Name, err)
		} else {
			Logf("Namespace %v was already deleted", ns.Name)
		}
	}

	// TODO: Delete the namespace from underlying clusters.
}

// ReplaceChangedRoles will reconcile all the changed roles back to the recommended bootstrap policy
func (o *ReconcileClusterRolesOptions) ReplaceChangedRoles(changedRoles []*authorizationapi.ClusterRole) error {
	for i := range changedRoles {
		role, err := o.RoleClient.Get(changedRoles[i].Name)
		if err != nil && !kapierrors.IsNotFound(err) {
			return err
		}

		if kapierrors.IsNotFound(err) {
			createdRole, err := o.RoleClient.Create(changedRoles[i])
			if err != nil {
				return err
			}

			fmt.Fprintf(o.Out, "clusterrole/%s\n", createdRole.Name)
			continue
		}

		role.Rules = changedRoles[i].Rules
		updatedRole, err := o.RoleClient.Update(role)
		if err != nil {
			return err
		}

		fmt.Fprintf(o.Out, "clusterrole/%s\n", updatedRole.Name)
	}

	return nil
}

// Ensure that when scheduler creates a binding for a pod that has already been deleted
// by the API server, API server returns not-found error.
func TestEtcdCreateBindingNoPod(t *testing.T) {
	storage, bindingStorage, _, server := newStorage(t)
	defer server.Terminate(t)
	ctx := api.NewDefaultContext()

	key, _ := storage.KeyFunc(ctx, "foo")
	key = etcdtest.AddPrefix(key)
	// Assume that a pod has undergone the following:
	// - Create (apiserver)
	// - Schedule (scheduler)
	// - Delete (apiserver)
	_, err := bindingStorage.Create(ctx, &api.Binding{
		ObjectMeta: api.ObjectMeta{Namespace: api.NamespaceDefault, Name: "foo"},
		Target:     api.ObjectReference{Name: "machine"},
	})
	if err == nil {
		t.Fatalf("Expected not-found-error but got nothing")
	}
	if !errors.IsNotFound(etcderrors.InterpretGetError(err, "Pod", "foo")) {
		t.Fatalf("Unexpected error returned: %#v", err)
	}

	_, err = storage.Get(ctx, "foo")
	if err == nil {
		t.Fatalf("Expected not-found-error but got nothing")
	}
	if !errors.IsNotFound(etcderrors.InterpretGetError(err, "Pod", "foo")) {
		t.Fatalf("Unexpected error: %v", err)
	}
}

func TestStoreDeleteCollection(t *testing.T) {
	podA := &api.Pod{ObjectMeta: api.ObjectMeta{Name: "foo"}}
	podB := &api.Pod{ObjectMeta: api.ObjectMeta{Name: "bar"}}

	testContext := api.WithNamespace(api.NewContext(), "test")
	server, registry := NewTestGenericStoreRegistry(t)
	defer server.Terminate(t)

	if _, err := registry.Create(testContext, podA); err != nil {
		t.Errorf("Unexpected error: %v", err)
	}
	if _, err := registry.Create(testContext, podB); err != nil {
		t.Errorf("Unexpected error: %v", err)
	}

	// Delete all pods.
	deleted, err := registry.DeleteCollection(testContext, nil, &api.ListOptions{})
	if err != nil {
		t.Fatalf("Unexpected error: %v", err)
	}
	deletedPods := deleted.(*api.PodList)
	if len(deletedPods.Items) != 2 {
		t.Errorf("Unexpected number of pods deleted: %d, expected: 2", len(deletedPods.Items))
	}

	if _, err := registry.Get(testContext, podA.Name); !errors.IsNotFound(err) {
		t.Errorf("Unexpected error: %v", err)
	}
	if _, err := registry.Get(testContext, podB.Name); !errors.IsNotFound(err) {
		t.Errorf("Unexpected error: %v", err)
	}
}

// HandleBuildDeletion deletes a build pod if the corresponding build has been deleted
func (bc *BuildDeleteController) HandleBuildDeletion(build *buildapi.Build) error {
	glog.V(4).Infof("Handling deletion of build %s", build.Name)
	if build.Spec.Strategy.JenkinsPipelineStrategy != nil {
		glog.V(4).Infof("Ignoring build with jenkins pipeline strategy")
		return nil
	}
	podName := buildapi.GetBuildPodName(build)
	pod, err := bc.PodManager.GetPod(build.Namespace, podName)
	if err != nil && !errors.IsNotFound(err) {
		glog.V(2).Infof("Failed to find pod with name %s for build %s in namespace %s due to error: %v", podName, build.Name, build.Namespace, err)
		return err
	}
	if pod == nil {
		glog.V(2).Infof("Did not find pod with name %s for build %s in namespace %s", podName, build.Name, build.Namespace)
		return nil
	}
	if buildName := buildapi.GetBuildName(pod); buildName != build.Name {
		glog.V(2).Infof("Not deleting pod %s/%s because the build label %s does not match the build name %s", pod.Namespace, podName, buildName, build.Name)
		return nil
	}
	err = bc.PodManager.DeletePod(build.Namespace, pod)
	if err != nil && !errors.IsNotFound(err) {
		glog.V(2).Infof("Failed to delete pod %s/%s for build %s due to error: %v", build.Namespace, podName, build.Name, err)
		return err
	}
	return nil
}

// CancelBuild updates a build status to Cancelled, after its associated pod is deleted.
func (bc *BuildController) CancelBuild(build *buildapi.Build) error {
	if !isBuildCancellable(build) {
		glog.V(4).Infof("Build %s/%s can be cancelled only if it has pending/running status, not %s.", build.Namespace, build.Name, build.Status.Phase)
		return nil
	}

	glog.V(4).Infof("Cancelling build %s/%s.", build.Namespace, build.Name)

	pod, err := bc.PodManager.GetPod(build.Namespace, buildapi.GetBuildPodName(build))
	if err != nil {
		if !errors.IsNotFound(err) {
			return fmt.Errorf("Failed to get pod for build %s/%s: %v", build.Namespace, build.Name, err)
		}
	} else {
		err := bc.PodManager.DeletePod(build.Namespace, pod)
		if err != nil && !errors.IsNotFound(err) {
			return fmt.Errorf("Couldn't delete build pod %s/%s: %v", build.Namespace, pod.Name, err)
		}
	}

	build.Status.Phase = buildapi.BuildPhaseCancelled
	now := unversioned.Now()
	build.Status.CompletionTimestamp = &now
	// set the status details for the cancelled build before updating the build
	// object.
	build.Status.Reason = buildapi.StatusReasonCancelledBuild
	build.Status.Message = buildapi.StatusMessageCancelledBuild
	if err := bc.BuildUpdater.Update(build.Namespace, build); err != nil {
		return fmt.Errorf("Failed to update build %s/%s: %v", build.Namespace, build.Name, err)
	}

	glog.V(4).Infof("Build %s/%s was successfully cancelled.", build.Namespace, build.Name)
	return nil
}

// makeImageStreamImportAdmissionUsageFunc retuns a function for computing a usage of an image stream import.
func makeImageStreamImportAdmissionUsageFunc(isNamespacer osclient.ImageStreamsNamespacer) generic.UsageFunc {
	return func(object runtime.Object) kapi.ResourceList {
		isi, ok := object.(*imageapi.ImageStreamImport)
		if !ok {
			return kapi.ResourceList{}
		}

		usage := map[kapi.ResourceName]resource.Quantity{
			imageapi.ResourceImageStreams: *resource.NewQuantity(0, resource.DecimalSI),
		}

		if !isi.Spec.Import || (len(isi.Spec.Images) == 0 && isi.Spec.Repository == nil) {
			return usage
		}

		is, err := isNamespacer.ImageStreams(isi.Namespace).Get(isi.Name)
		if err != nil && !kerrors.IsNotFound(err) {
			utilruntime.HandleError(fmt.Errorf("failed to list image streams: %v", err))
		}
		if is == nil || kerrors.IsNotFound(err) {
			usage[imageapi.ResourceImageStreams] = *resource.NewQuantity(1, resource.DecimalSI)
		}

		return usage
	}
}

func Rename(c coreclient.ReplicationControllersGetter, rc *api.ReplicationController, newName string) error {
	oldName := rc.Name
	rc.Name = newName
	rc.ResourceVersion = ""
	// First delete the oldName RC and orphan its pods.
	trueVar := true
	err := c.ReplicationControllers(rc.Namespace).Delete(oldName, &api.DeleteOptions{OrphanDependents: &trueVar})
	if err != nil && !errors.IsNotFound(err) {
		return err
	}
	err = wait.Poll(5*time.Second, 60*time.Second, func() (bool, error) {
		_, err := c.ReplicationControllers(rc.Namespace).Get(oldName)
		if err == nil {
			return false, nil
		} else if errors.IsNotFound(err) {
			return true, nil
		} else {
			return false, err
		}
	})
	if err != nil {
		return err
	}
	// Then create the same RC with the new name.
	_, err = c.ReplicationControllers(rc.Namespace).Create(rc)
	if err != nil {
		return err
	}
	return nil
}

// verifyCascadingDeletionForIngress verifies that ingresses are deleted from
// underlying clusters when orphan dependents is false and they are not deleted
// when orphan dependents is true.
func verifyCascadingDeletionForIngress(clientset *fedclientset.Clientset, clusters map[string]*cluster, orphanDependents *bool, nsName string) {
	ingress := createIngressOrFail(clientset, nsName)
	ingressName := ingress.Name
	// Check subclusters if the ingress was created there.
	By(fmt.Sprintf("Waiting for ingress %s to be created in all underlying clusters", ingressName))
	waitForIngressShardsOrFail(nsName, ingress, clusters)

	By(fmt.Sprintf("Deleting ingress %s", ingressName))
	deleteIngressOrFail(clientset, nsName, ingressName, orphanDependents)

	By(fmt.Sprintf("Verifying ingresses %s in underlying clusters", ingressName))
	errMessages := []string{}
	// ingress should be present in underlying clusters unless orphanDependents is false.
	shouldExist := orphanDependents == nil || *orphanDependents == true
	for clusterName, clusterClientset := range clusters {
		_, err := clusterClientset.Extensions().Ingresses(nsName).Get(ingressName)
		if shouldExist && errors.IsNotFound(err) {
			errMessages = append(errMessages, fmt.Sprintf("unexpected NotFound error for ingress %s in cluster %s, expected ingress to exist", ingressName, clusterName))
		} else if !shouldExist && !errors.IsNotFound(err) {
			errMessages = append(errMessages, fmt.Sprintf("expected NotFound error for ingress %s in cluster %s, got error: %v", ingressName, clusterName, err))
		}
	}
	if len(errMessages) != 0 {
		framework.Failf("%s", strings.Join(errMessages, "; "))
	}
}

// Cleanup up pvs and pvcs in multi-pv-pvc test cases. All entries found in the pv and
// claims maps are deleted.
// Note: this is the only code that deletes PV objects.
func pvPvcCleanup(c clientset.Interface, ns string, pvols pvmap, claims pvcmap) {

	if c != nil && len(ns) > 0 {
		for pvcKey := range claims {
			_, err := c.Core().PersistentVolumeClaims(pvcKey.Namespace).Get(pvcKey.Name)
			if !apierrs.IsNotFound(err) {
				Expect(err).NotTo(HaveOccurred())
				framework.Logf("   deleting PVC %v ...", pvcKey)
				err = c.Core().PersistentVolumeClaims(pvcKey.Namespace).Delete(pvcKey.Name, nil)
				Expect(err).NotTo(HaveOccurred())
				framework.Logf("   deleted  PVC %v", pvcKey)
			}
			delete(claims, pvcKey)
		}

		for name := range pvols {
			_, err := c.Core().PersistentVolumes().Get(name)
			if !apierrs.IsNotFound(err) {
				Expect(err).NotTo(HaveOccurred())
				framework.Logf("   deleting PV %v ...", name)
				err = c.Core().PersistentVolumes().Delete(name, nil)
				Expect(err).NotTo(HaveOccurred())
				framework.Logf("   deleted  PV %v", name)
			}
			delete(pvols, name)
		}
	}
}

// Ensure that when scheduler creates a binding for a pod that has already been deleted
// by the API server, API server returns not-found error.
func TestEtcdCreateBindingNoPod(t *testing.T) {
	storage, bindingStorage, _, server := newStorage(t)
	defer server.Terminate(t)
	defer storage.Store.DestroyFunc()
	ctx := api.NewDefaultContext()

	// Assume that a pod has undergone the following:
	// - Create (apiserver)
	// - Schedule (scheduler)
	// - Delete (apiserver)
	_, err := bindingStorage.Create(ctx, &api.Binding{
		ObjectMeta: api.ObjectMeta{Namespace: api.NamespaceDefault, Name: "foo"},
		Target:     api.ObjectReference{Name: "machine"},
	})
	if err == nil {
		t.Fatalf("Expected not-found-error but got nothing")
	}
	if !errors.IsNotFound(storeerr.InterpretGetError(err, api.Resource("pods"), "foo")) {
		t.Fatalf("Unexpected error returned: %#v", err)
	}

	_, err = storage.Get(ctx, "foo", &metav1.GetOptions{})
	if err == nil {
		t.Fatalf("Expected not-found-error but got nothing")
	}
	if !errors.IsNotFound(storeerr.InterpretGetError(err, api.Resource("pods"), "foo")) {
		t.Fatalf("Unexpected error: %v", err)
	}
}

func (cc *clusterClientCache) persistFedServiceUpdate(cachedService *cachedService, fedClient federation_release_1_3.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
}