306 lines
13 KiB
Go
306 lines
13 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package e2e_federation
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import (
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"fmt"
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"os"
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"strings"
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"time"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/util/wait"
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fedclientset "k8s.io/kubernetes/federation/client/clientset_generated/federation_clientset"
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fedutil "k8s.io/kubernetes/federation/pkg/federation-controller/util"
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"k8s.io/kubernetes/pkg/api/v1"
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"k8s.io/kubernetes/pkg/apis/extensions/v1beta1"
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"k8s.io/kubernetes/test/e2e/framework"
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fedframework "k8s.io/kubernetes/test/e2e_federation/framework"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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"k8s.io/apimachinery/pkg/api/errors"
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)
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const (
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FederationDeploymentName = "federation-deployment"
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FederatedDeploymentTimeout = 120 * time.Second
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)
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// Create/delete deployment api objects
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var _ = framework.KubeDescribe("Federation deployments [Feature:Federation]", func() {
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f := fedframework.NewDefaultFederatedFramework("federation-deployment")
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Describe("Deployment objects", func() {
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AfterEach(func() {
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fedframework.SkipUnlessFederated(f.ClientSet)
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// Delete all deployments.
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nsName := f.FederationNamespace.Name
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deleteAllDeploymentsOrFail(f.FederationClientset, nsName)
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})
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It("should be created and deleted successfully", func() {
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fedframework.SkipUnlessFederated(f.ClientSet)
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nsName := f.FederationNamespace.Name
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deployment := createDeploymentOrFail(f.FederationClientset, nsName)
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By(fmt.Sprintf("Creation of deployment %q in namespace %q succeeded. Deleting deployment.", deployment.Name, nsName))
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// Cleanup
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err := f.FederationClientset.Extensions().Deployments(nsName).Delete(deployment.Name, &metav1.DeleteOptions{})
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framework.ExpectNoError(err, "Error deleting deployment %q in namespace %q", deployment.Name, deployment.Namespace)
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By(fmt.Sprintf("Deletion of deployment %q in namespace %q succeeded.", deployment.Name, nsName))
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})
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})
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// e2e cases for federated deployment controller
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Describe("Federated Deployment", func() {
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var (
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clusters map[string]*cluster
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federationName string
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)
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BeforeEach(func() {
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fedframework.SkipUnlessFederated(f.ClientSet)
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if federationName = os.Getenv("FEDERATION_NAME"); federationName == "" {
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federationName = DefaultFederationName
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}
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clusters = map[string]*cluster{}
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registerClusters(clusters, UserAgentName, federationName, f)
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})
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AfterEach(func() {
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nsName := f.FederationNamespace.Name
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deleteAllDeploymentsOrFail(f.FederationClientset, nsName)
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unregisterClusters(clusters, f)
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})
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It("should create and update matching deployments in underling clusters", func() {
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nsName := f.FederationNamespace.Name
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dep := createDeploymentOrFail(f.FederationClientset, nsName)
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defer func() {
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// cleanup. deletion of deployments is not supported for underlying clusters
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By(fmt.Sprintf("Preparing deployment %q/%q for deletion by setting replicas to zero", nsName, dep.Name))
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replicas := int32(0)
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dep.Spec.Replicas = &replicas
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f.FederationClientset.Deployments(nsName).Update(dep)
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waitForDeploymentOrFail(f.FederationClientset, nsName, dep.Name, clusters)
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f.FederationClientset.Deployments(nsName).Delete(dep.Name, &metav1.DeleteOptions{})
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}()
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waitForDeploymentOrFail(f.FederationClientset, nsName, dep.Name, clusters)
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By(fmt.Sprintf("Successfuly created and synced deployment %q/%q to clusters", nsName, dep.Name))
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updateDeploymentOrFail(f.FederationClientset, nsName)
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waitForDeploymentOrFail(f.FederationClientset, nsName, dep.Name, clusters)
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By(fmt.Sprintf("Successfuly updated and synced deployment %q/%q to clusters", nsName, dep.Name))
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})
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It("should be deleted from underlying clusters when OrphanDependents is false", func() {
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fedframework.SkipUnlessFederated(f.ClientSet)
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nsName := f.FederationNamespace.Name
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orphanDependents := false
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verifyCascadingDeletionForDeployment(f.FederationClientset, clusters, &orphanDependents, nsName)
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By(fmt.Sprintf("Verified that deployments were deleted from underlying clusters"))
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})
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It("should not be deleted from underlying clusters when OrphanDependents is true", func() {
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fedframework.SkipUnlessFederated(f.ClientSet)
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nsName := f.FederationNamespace.Name
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orphanDependents := true
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verifyCascadingDeletionForDeployment(f.FederationClientset, clusters, &orphanDependents, nsName)
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By(fmt.Sprintf("Verified that deployments were not deleted from underlying clusters"))
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})
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It("should not be deleted from underlying clusters when OrphanDependents is nil", func() {
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fedframework.SkipUnlessFederated(f.ClientSet)
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nsName := f.FederationNamespace.Name
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verifyCascadingDeletionForDeployment(f.FederationClientset, clusters, nil, nsName)
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By(fmt.Sprintf("Verified that deployments were not deleted from underlying clusters"))
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})
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})
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})
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// deleteAllDeploymentsOrFail deletes all deployments in the given namespace name.
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func deleteAllDeploymentsOrFail(clientset *fedclientset.Clientset, nsName string) {
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deploymentList, err := clientset.Extensions().Deployments(nsName).List(metav1.ListOptions{})
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Expect(err).NotTo(HaveOccurred())
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orphanDependents := false
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for _, deployment := range deploymentList.Items {
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deleteDeploymentOrFail(clientset, nsName, deployment.Name, &orphanDependents)
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}
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}
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// verifyCascadingDeletionForDeployment verifies that deployments are deleted
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// from underlying clusters when orphan dependents is false and they are not
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// deleted when orphan dependents is true.
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func verifyCascadingDeletionForDeployment(clientset *fedclientset.Clientset, clusters map[string]*cluster, orphanDependents *bool, nsName string) {
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deployment := createDeploymentOrFail(clientset, nsName)
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deploymentName := deployment.Name
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// Check subclusters if the deployment was created there.
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By(fmt.Sprintf("Waiting for deployment %s to be created in all underlying clusters", deploymentName))
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err := wait.Poll(5*time.Second, 2*time.Minute, func() (bool, error) {
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for _, cluster := range clusters {
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_, err := cluster.Extensions().Deployments(nsName).Get(deploymentName, metav1.GetOptions{})
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if err != nil && errors.IsNotFound(err) {
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return false, nil
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}
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if err != nil {
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return false, err
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}
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}
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return true, nil
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})
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framework.ExpectNoError(err, "Not all deployments created")
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By(fmt.Sprintf("Deleting deployment %s", deploymentName))
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deleteDeploymentOrFail(clientset, nsName, deploymentName, orphanDependents)
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By(fmt.Sprintf("Verifying deployments %s in underlying clusters", deploymentName))
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errMessages := []string{}
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// deployment should be present in underlying clusters unless orphanDependents is false.
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shouldExist := orphanDependents == nil || *orphanDependents == true
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for clusterName, clusterClientset := range clusters {
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_, err := clusterClientset.Extensions().Deployments(nsName).Get(deploymentName, metav1.GetOptions{})
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if shouldExist && errors.IsNotFound(err) {
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errMessages = append(errMessages, fmt.Sprintf("unexpected NotFound error for deployment %s in cluster %s, expected deployment to exist", deploymentName, clusterName))
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} else if !shouldExist && !errors.IsNotFound(err) {
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errMessages = append(errMessages, fmt.Sprintf("expected NotFound error for deployment %s in cluster %s, got error: %v", deploymentName, clusterName, err))
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}
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}
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if len(errMessages) != 0 {
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framework.Failf("%s", strings.Join(errMessages, "; "))
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}
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}
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func waitForDeploymentOrFail(c *fedclientset.Clientset, namespace string, deploymentName string, clusters map[string]*cluster) {
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err := waitForDeployment(c, namespace, deploymentName, clusters)
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framework.ExpectNoError(err, "Failed to verify deployment %q/%q, err: %v", namespace, deploymentName, err)
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}
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func waitForDeployment(c *fedclientset.Clientset, namespace string, deploymentName string, clusters map[string]*cluster) error {
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err := wait.Poll(10*time.Second, FederatedDeploymentTimeout, func() (bool, error) {
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fdep, err := c.Deployments(namespace).Get(deploymentName, metav1.GetOptions{})
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if err != nil {
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return false, err
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}
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specReplicas, statusReplicas := int32(0), int32(0)
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for _, cluster := range clusters {
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dep, err := cluster.Deployments(namespace).Get(deploymentName, metav1.GetOptions{})
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if err != nil && !errors.IsNotFound(err) {
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By(fmt.Sprintf("Failed getting deployment: %q/%q/%q, err: %v", cluster.name, namespace, deploymentName, err))
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return false, err
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}
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if err == nil {
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if !verifyDeployment(fdep, dep) {
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By(fmt.Sprintf("Deployment meta or spec not match for cluster %q:\n federation: %v\n cluster: %v", cluster.name, fdep, dep))
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return false, nil
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}
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specReplicas += *dep.Spec.Replicas
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statusReplicas += dep.Status.Replicas
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}
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}
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if statusReplicas == fdep.Status.Replicas && specReplicas >= *fdep.Spec.Replicas {
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return true, nil
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}
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By(fmt.Sprintf("Replicas not match, federation replicas: %v/%v, clusters replicas: %v/%v\n", *fdep.Spec.Replicas, fdep.Status.Replicas, specReplicas, statusReplicas))
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return false, nil
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})
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return err
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}
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func verifyDeployment(fedDeployment, localDeployment *v1beta1.Deployment) bool {
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localDeployment = fedutil.DeepCopyDeployment(localDeployment)
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localDeployment.Spec.Replicas = fedDeployment.Spec.Replicas
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return fedutil.DeploymentEquivalent(fedDeployment, localDeployment)
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}
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func createDeploymentOrFail(clientset *fedclientset.Clientset, namespace string) *v1beta1.Deployment {
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if clientset == nil || len(namespace) == 0 {
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Fail(fmt.Sprintf("Internal error: invalid parameters passed to createDeploymentOrFail: clientset: %v, namespace: %v", clientset, namespace))
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}
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By(fmt.Sprintf("Creating federation deployment %q in namespace %q", FederationDeploymentName, namespace))
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deployment := newDeploymentForFed(namespace, FederationDeploymentName, 5)
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_, err := clientset.Extensions().Deployments(namespace).Create(deployment)
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framework.ExpectNoError(err, "Creating deployment %q in namespace %q", deployment.Name, namespace)
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By(fmt.Sprintf("Successfully created federation deployment %q in namespace %q", FederationDeploymentName, namespace))
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return deployment
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}
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func updateDeploymentOrFail(clientset *fedclientset.Clientset, namespace string) *v1beta1.Deployment {
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if clientset == nil || len(namespace) == 0 {
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Fail(fmt.Sprintf("Internal error: invalid parameters passed to updateDeploymentOrFail: clientset: %v, namespace: %v", clientset, namespace))
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}
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By(fmt.Sprintf("Updating federation deployment %q in namespace %q", FederationDeploymentName, namespace))
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deployment := newDeploymentForFed(namespace, FederationDeploymentName, 15)
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newRs, err := clientset.Deployments(namespace).Update(deployment)
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framework.ExpectNoError(err, "Updating deployment %q in namespace %q", deployment.Name, namespace)
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By(fmt.Sprintf("Successfully updated federation deployment %q in namespace %q", FederationDeploymentName, namespace))
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return newRs
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}
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func deleteDeploymentOrFail(clientset *fedclientset.Clientset, nsName string, deploymentName string, orphanDependents *bool) {
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By(fmt.Sprintf("Deleting deployment %q in namespace %q", deploymentName, nsName))
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err := clientset.Extensions().Deployments(nsName).Delete(deploymentName, &metav1.DeleteOptions{OrphanDependents: orphanDependents})
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framework.ExpectNoError(err, "Error deleting deployment %q in namespace %q", deploymentName, nsName)
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// Wait for the deployment to be deleted.
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err = wait.Poll(5*time.Second, wait.ForeverTestTimeout, func() (bool, error) {
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_, err := clientset.Extensions().Deployments(nsName).Get(deploymentName, metav1.GetOptions{})
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if err != nil && errors.IsNotFound(err) {
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return true, nil
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}
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return false, err
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})
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if err != nil {
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framework.Failf("Error in deleting deployment %s: %v", deploymentName, err)
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}
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}
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func newDeploymentForFed(namespace string, name string, replicas int32) *v1beta1.Deployment {
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return &v1beta1.Deployment{
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ObjectMeta: metav1.ObjectMeta{
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Name: name,
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Namespace: namespace,
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},
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Spec: v1beta1.DeploymentSpec{
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Replicas: &replicas,
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Selector: &metav1.LabelSelector{
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MatchLabels: map[string]string{"name": "myrs"},
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},
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Template: v1.PodTemplateSpec{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{"name": "myrs"},
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},
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Spec: v1.PodSpec{
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Containers: []v1.Container{
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{
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Name: "nginx",
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Image: "nginx",
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},
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},
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},
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},
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},
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}
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}
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