271 lines
11 KiB
Go
271 lines
11 KiB
Go
/*
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Copyright 2015 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
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import (
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"fmt"
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"strings"
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"time"
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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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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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"k8s.io/kubernetes/federation/pkg/federation-controller/util"
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"k8s.io/kubernetes/pkg/api/v1"
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kubeclientset "k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
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"k8s.io/kubernetes/test/e2e/framework"
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)
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const (
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secretNamePrefix = "e2e-secret-test-"
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FederatedSecretTimeout = 60 * time.Second
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MaxRetries = 3
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)
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// Create/delete secret api objects
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var _ = framework.KubeDescribe("Federation secrets [Feature:Federation]", func() {
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var clusters map[string]*cluster // All clusters, keyed by cluster name
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f := framework.NewDefaultFederatedFramework("federated-secret")
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Describe("Secret objects", func() {
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BeforeEach(func() {
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framework.SkipUnlessFederated(f.ClientSet)
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clusters = map[string]*cluster{}
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registerClusters(clusters, UserAgentName, "", f)
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})
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AfterEach(func() {
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framework.SkipUnlessFederated(f.ClientSet)
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// Delete all secrets.
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nsName := f.FederationNamespace.Name
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deleteAllSecretsOrFail(f.FederationClientset_1_5, nsName)
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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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framework.SkipUnlessFederated(f.ClientSet)
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nsName := f.FederationNamespace.Name
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secret := createSecretOrFail(f.FederationClientset_1_5, nsName)
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// wait for secret shards being created
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waitForSecretShardsOrFail(nsName, secret, clusters)
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secret = updateSecretOrFail(f.FederationClientset_1_5, nsName, secret.Name)
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waitForSecretShardsUpdatedOrFail(nsName, secret, clusters)
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})
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It("should be deleted from underlying clusters when OrphanDependents is false", func() {
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framework.SkipUnlessFederated(f.ClientSet)
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nsName := f.FederationNamespace.Name
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orphanDependents := false
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verifyCascadingDeletionForSecret(f.FederationClientset_1_5, clusters, &orphanDependents, nsName)
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By(fmt.Sprintf("Verified that secrets 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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framework.SkipUnlessFederated(f.ClientSet)
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nsName := f.FederationNamespace.Name
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orphanDependents := true
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verifyCascadingDeletionForSecret(f.FederationClientset_1_5, clusters, &orphanDependents, nsName)
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By(fmt.Sprintf("Verified that secrets 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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framework.SkipUnlessFederated(f.ClientSet)
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nsName := f.FederationNamespace.Name
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verifyCascadingDeletionForSecret(f.FederationClientset_1_5, clusters, nil, nsName)
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By(fmt.Sprintf("Verified that secrets were not deleted from underlying clusters"))
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})
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})
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})
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// deleteAllSecretsOrFail deletes all secrets in the given namespace name.
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func deleteAllSecretsOrFail(clientset *fedclientset.Clientset, nsName string) {
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SecretList, err := clientset.Core().Secrets(nsName).List(v1.ListOptions{})
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Expect(err).NotTo(HaveOccurred())
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orphanDependents := false
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for _, Secret := range SecretList.Items {
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deleteSecretOrFail(clientset, nsName, Secret.Name, &orphanDependents)
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}
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}
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// verifyCascadingDeletionForSecret verifies that secrets 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 verifyCascadingDeletionForSecret(clientset *fedclientset.Clientset, clusters map[string]*cluster, orphanDependents *bool, nsName string) {
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secret := createSecretOrFail(clientset, nsName)
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secretName := secret.Name
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// Check subclusters if the secret was created there.
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By(fmt.Sprintf("Waiting for secret %s to be created in all underlying clusters", secretName))
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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().Secrets(nsName).Get(secretName, metav1.GetOptions{})
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if err != nil {
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if !errors.IsNotFound(err) {
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return false, err
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}
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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 secrets created")
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By(fmt.Sprintf("Deleting secret %s", secretName))
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deleteSecretOrFail(clientset, nsName, secretName, orphanDependents)
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By(fmt.Sprintf("Verifying secrets %s in underlying clusters", secretName))
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errMessages := []string{}
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// secret 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().Secrets(nsName).Get(secretName, metav1.GetOptions{})
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if shouldExist && errors.IsNotFound(err) {
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errMessages = append(errMessages, fmt.Sprintf("unexpected NotFound error for secret %s in cluster %s, expected secret to exist", secretName, clusterName))
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} else if !shouldExist && !errors.IsNotFound(err) {
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errMessages = append(errMessages, fmt.Sprintf("expected NotFound error for secret %s in cluster %s, got error: %v", secretName, 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 createSecretOrFail(clientset *fedclientset.Clientset, nsName string) *v1.Secret {
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if len(nsName) == 0 {
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Fail(fmt.Sprintf("Internal error: invalid parameters passed to createSecretOrFail: namespace: %v", nsName))
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}
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secret := &v1.Secret{
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ObjectMeta: v1.ObjectMeta{
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Name: v1.SimpleNameGenerator.GenerateName(secretNamePrefix),
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Namespace: nsName,
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},
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}
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By(fmt.Sprintf("Creating secret %q in namespace %q", secret.Name, nsName))
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_, err := clientset.Core().Secrets(nsName).Create(secret)
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framework.ExpectNoError(err, "Failed to create secret %s", secret.Name)
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By(fmt.Sprintf("Successfully created federated secret %q in namespace %q", secret.Name, nsName))
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return secret
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}
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func deleteSecretOrFail(clientset *fedclientset.Clientset, nsName string, secretName string, orphanDependents *bool) {
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By(fmt.Sprintf("Deleting secret %q in namespace %q", secretName, nsName))
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err := clientset.Core().Secrets(nsName).Delete(secretName, &v1.DeleteOptions{OrphanDependents: orphanDependents})
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framework.ExpectNoError(err, "Error deleting secret %q in namespace %q", secretName, nsName)
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// Wait for the secret to be deleted.
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err = wait.Poll(5*time.Second, wait.ForeverTestTimeout, func() (bool, error) {
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_, err := clientset.Core().Secrets(nsName).Get(secretName, 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 secret %s: %v", secretName, err)
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}
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}
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func updateSecretOrFail(clientset *fedclientset.Clientset, nsName string, secretName string) *v1.Secret {
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if clientset == nil || len(nsName) == 0 {
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Fail(fmt.Sprintf("Internal error: invalid parameters passed to updateSecretOrFail: clientset: %v, namespace: %v", clientset, nsName))
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}
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var newSecret *v1.Secret
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for retryCount := 0; retryCount < MaxRetries; retryCount++ {
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secret, err := clientset.Core().Secrets(nsName).Get(secretName, metav1.GetOptions{})
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if err != nil {
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framework.Failf("failed to get secret %q: %v", secretName, err)
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}
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// Update one of the data in the secret.
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secret.Data = map[string][]byte{
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"key": []byte("value"),
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}
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newSecret, err = clientset.Core().Secrets(nsName).Update(secret)
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if err == nil {
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return newSecret
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}
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if !errors.IsConflict(err) && !errors.IsServerTimeout(err) {
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framework.Failf("failed to update secret %q: %v", secretName, err)
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}
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}
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framework.Failf("too many retries updating secret %q", secretName)
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return newSecret
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}
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func waitForSecretShardsOrFail(nsName string, secret *v1.Secret, clusters map[string]*cluster) {
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framework.Logf("Waiting for secret %q in %d clusters", secret.Name, len(clusters))
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for _, c := range clusters {
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waitForSecretOrFail(c.Clientset, nsName, secret, true, FederatedSecretTimeout)
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}
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}
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func waitForSecretOrFail(clientset *kubeclientset.Clientset, nsName string, secret *v1.Secret, present bool, timeout time.Duration) {
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By(fmt.Sprintf("Fetching a federated secret shard of secret %q in namespace %q from cluster", secret.Name, nsName))
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var clusterSecret *v1.Secret
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err := wait.PollImmediate(framework.Poll, timeout, func() (bool, error) {
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clusterSecret, err := clientset.Core().Secrets(nsName).Get(secret.Name, metav1.GetOptions{})
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if (!present) && errors.IsNotFound(err) { // We want it gone, and it's gone.
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By(fmt.Sprintf("Success: shard of federated secret %q in namespace %q in cluster is absent", secret.Name, nsName))
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return true, nil // Success
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}
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if present && err == nil { // We want it present, and the Get succeeded, so we're all good.
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By(fmt.Sprintf("Success: shard of federated secret %q in namespace %q in cluster is present", secret.Name, nsName))
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return true, nil // Success
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}
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By(fmt.Sprintf("Secret %q in namespace %q in cluster. Found: %v, waiting for Found: %v, trying again in %s (err=%v)", secret.Name, nsName, clusterSecret != nil && err == nil, present, framework.Poll, err))
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return false, nil
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})
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framework.ExpectNoError(err, "Failed to verify secret %q in namespace %q in cluster: Present=%v", secret.Name, nsName, present)
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if present && clusterSecret != nil {
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Expect(util.SecretEquivalent(*clusterSecret, *secret))
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}
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}
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func waitForSecretShardsUpdatedOrFail(nsName string, secret *v1.Secret, clusters map[string]*cluster) {
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framework.Logf("Waiting for secret %q in %d clusters", secret.Name, len(clusters))
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for _, c := range clusters {
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waitForSecretUpdateOrFail(c.Clientset, nsName, secret, FederatedSecretTimeout)
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}
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}
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func waitForSecretUpdateOrFail(clientset *kubeclientset.Clientset, nsName string, secret *v1.Secret, timeout time.Duration) {
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By(fmt.Sprintf("Fetching a federated secret shard of secret %q in namespace %q from cluster", secret.Name, nsName))
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err := wait.PollImmediate(framework.Poll, timeout, func() (bool, error) {
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clusterSecret, err := clientset.Core().Secrets(nsName).Get(secret.Name, metav1.GetOptions{})
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if err == nil { // We want it present, and the Get succeeded, so we're all good.
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if util.SecretEquivalent(*clusterSecret, *secret) {
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By(fmt.Sprintf("Success: shard of federated secret %q in namespace %q in cluster is updated", secret.Name, nsName))
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return true, nil
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} else {
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By(fmt.Sprintf("Expected equal secrets. expected: %+v\nactual: %+v", *secret, *clusterSecret))
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}
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By(fmt.Sprintf("Secret %q in namespace %q in cluster, waiting for secret being updated, trying again in %s (err=%v)", secret.Name, nsName, framework.Poll, err))
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return false, nil
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}
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By(fmt.Sprintf("Secret %q in namespace %q in cluster, waiting for being updated, trying again in %s (err=%v)", secret.Name, nsName, framework.Poll, err))
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return false, nil
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})
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framework.ExpectNoError(err, "Failed to verify secret %q in namespace %q in cluster", secret.Name, nsName)
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}
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