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235 lines
8.5 KiB
Go
235 lines
8.5 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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"k8s.io/apimachinery/pkg/api/errors"
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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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clientset "k8s.io/kubernetes/federation/client/clientset_generated/federation_clientset/typed/core/v1"
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"k8s.io/kubernetes/pkg/api/v1"
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api_v1 "k8s.io/kubernetes/pkg/api/v1"
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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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)
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const (
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namespacePrefix = "e2e-namespace-test-"
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eventNamePrefix = "e2e-namespace-test-event-"
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)
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// Create/delete ingress api objects
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var _ = framework.KubeDescribe("Federation namespace [Feature:Federation]", func() {
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f := fedframework.NewDefaultFederatedFramework("federation-namespace")
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Describe("Namespace objects", func() {
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var federationName string
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var clusters map[string]*cluster // All clusters, keyed by cluster name
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BeforeEach(func() {
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fedframework.SkipUnlessFederated(f.ClientSet)
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// TODO: Federation API server should be able to answer this.
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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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fedframework.SkipUnlessFederated(f.ClientSet)
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deleteAllTestNamespaces(nil,
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f.FederationClientset.Core().Namespaces().List,
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f.FederationClientset.Core().Namespaces().Delete)
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for _, cluster := range clusters {
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deleteAllTestNamespaces(nil,
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cluster.Core().Namespaces().List,
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cluster.Core().Namespaces().Delete)
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}
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unregisterClusters(clusters, f)
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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 := createNamespace(f.FederationClientset.Core().Namespaces())
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By(fmt.Sprintf("Deleting namespace %s", nsName))
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deleteAllTestNamespaces(nil,
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f.FederationClientset.Core().Namespaces().List,
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f.FederationClientset.Core().Namespaces().Delete)
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By(fmt.Sprintf("Verified that deletion succeeded"))
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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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orphanDependents := false
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verifyNsCascadingDeletion(f.FederationClientset.Core().Namespaces(), clusters, &orphanDependents)
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By(fmt.Sprintf("Verified that namespaces 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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orphanDependents := true
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verifyNsCascadingDeletion(f.FederationClientset.Core().Namespaces(), clusters, &orphanDependents)
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By(fmt.Sprintf("Verified that namespaces 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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verifyNsCascadingDeletion(f.FederationClientset.Core().Namespaces(), clusters, nil)
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By(fmt.Sprintf("Verified that namespaces were not deleted from underlying clusters"))
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})
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It("all resources in the namespace should be deleted when namespace is deleted", func() {
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fedframework.SkipUnlessFederated(f.ClientSet)
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nsName := createNamespace(f.FederationClientset.Core().Namespaces())
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// Create resources in the namespace.
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event := api_v1.Event{
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ObjectMeta: metav1.ObjectMeta{
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Name: v1.SimpleNameGenerator.GenerateName(eventNamePrefix),
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Namespace: nsName,
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},
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InvolvedObject: api_v1.ObjectReference{
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Kind: "Pod",
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Namespace: nsName,
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Name: "sample-pod",
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},
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}
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By(fmt.Sprintf("Creating event %s in namespace %s", event.Name, nsName))
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_, err := f.FederationClientset.Core().Events(nsName).Create(&event)
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if err != nil {
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framework.Failf("Failed to create event %v in namespace %s, err: %s", event, nsName, err)
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}
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By(fmt.Sprintf("Deleting namespace %s", nsName))
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deleteAllTestNamespaces(nil,
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f.FederationClientset.Core().Namespaces().List,
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f.FederationClientset.Core().Namespaces().Delete)
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By(fmt.Sprintf("Verify that event %s was deleted as well", event.Name))
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latestEvent, err := f.FederationClientset.Core().Events(nsName).Get(event.Name, metav1.GetOptions{})
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if !errors.IsNotFound(err) {
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framework.Failf("Event %s should have been deleted. Found: %v", event.Name, latestEvent)
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}
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By(fmt.Sprintf("Verified that deletion succeeded"))
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})
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})
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})
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// verifyNsCascadingDeletion verifies that namespaces are deleted from
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// 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 verifyNsCascadingDeletion(nsClient clientset.NamespaceInterface, clusters map[string]*cluster, orphanDependents *bool) {
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nsName := createNamespace(nsClient)
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// Check subclusters if the namespace was created there.
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By(fmt.Sprintf("Waiting for namespace %s to be created in all underlying clusters", nsName))
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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.Core().Namespaces().Get(nsName, metav1.GetOptions{})
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if err != nil && !errors.IsNotFound(err) {
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return false, err
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}
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if err != nil {
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return false, nil
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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 namespaces created")
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By(fmt.Sprintf("Deleting namespace %s", nsName))
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deleteAllTestNamespaces(orphanDependents, nsClient.List, nsClient.Delete)
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By(fmt.Sprintf("Verifying namespaces %s in underlying clusters", nsName))
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errMessages := []string{}
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// namespace 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.Core().Namespaces().Get(nsName, metav1.GetOptions{})
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if shouldExist && errors.IsNotFound(err) {
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errMessages = append(errMessages, fmt.Sprintf("unexpected NotFound error for namespace %s in cluster %s, expected namespace to exist", nsName, clusterName))
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} else if !shouldExist && !errors.IsNotFound(err) {
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errMessages = append(errMessages, fmt.Sprintf("expected NotFound error for namespace %s in cluster %s, got error: %v", nsName, 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 createNamespace(nsClient clientset.NamespaceInterface) string {
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ns := api_v1.Namespace{
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ObjectMeta: metav1.ObjectMeta{
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Name: v1.SimpleNameGenerator.GenerateName(namespacePrefix),
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},
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}
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By(fmt.Sprintf("Creating namespace %s", ns.Name))
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_, err := nsClient.Create(&ns)
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framework.ExpectNoError(err, "Failed to create namespace %s", ns.Name)
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By(fmt.Sprintf("Created namespace %s", ns.Name))
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return ns.Name
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}
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func deleteAllTestNamespaces(orphanDependents *bool, lister func(metav1.ListOptions) (*api_v1.NamespaceList, error), deleter func(string, *metav1.DeleteOptions) error) {
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list, err := lister(metav1.ListOptions{})
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if err != nil {
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framework.Failf("Failed to get all namespaes: %v", err)
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return
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}
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for _, namespace := range list.Items {
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if strings.HasPrefix(namespace.Name, namespacePrefix) {
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By(fmt.Sprintf("Deleting ns: %s, found by listing", namespace.Name))
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err := deleter(namespace.Name, &metav1.DeleteOptions{OrphanDependents: orphanDependents})
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if err != nil {
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framework.Failf("Failed to set %s for deletion: %v", namespace.Name, err)
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}
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}
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}
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waitForNoTestNamespaces(lister)
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}
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func waitForNoTestNamespaces(lister func(metav1.ListOptions) (*api_v1.NamespaceList, error)) {
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err := wait.Poll(5*time.Second, 2*time.Minute, func() (bool, error) {
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list, err := lister(metav1.ListOptions{})
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if err != nil {
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return false, err
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}
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for _, namespace := range list.Items {
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if strings.HasPrefix(namespace.Name, namespacePrefix) {
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return false, nil
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}
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}
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return true, nil
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})
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if err != nil {
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framework.Failf("Namespaces not deleted: %v", err)
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}
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}
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