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243 lines
8.7 KiB
Go
243 lines
8.7 KiB
Go
/*
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Copyright 2014 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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"time"
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apierrors "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/uuid"
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"k8s.io/apimachinery/pkg/util/wait"
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"k8s.io/kubernetes/pkg/api/v1"
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utilversion "k8s.io/kubernetes/pkg/util/version"
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"k8s.io/kubernetes/plugin/pkg/admission/serviceaccount"
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"k8s.io/kubernetes/test/e2e/framework"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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)
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var serviceAccountTokenNamespaceVersion = utilversion.MustParseSemantic("v1.2.0")
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var _ = framework.KubeDescribe("ServiceAccounts", func() {
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f := framework.NewDefaultFramework("svcaccounts")
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It("should ensure a single API token exists", func() {
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// wait for the service account to reference a single secret
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var secrets []v1.ObjectReference
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framework.ExpectNoError(wait.Poll(time.Millisecond*500, time.Second*10, func() (bool, error) {
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By("waiting for a single token reference")
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sa, err := f.ClientSet.Core().ServiceAccounts(f.Namespace.Name).Get("default", metav1.GetOptions{})
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if apierrors.IsNotFound(err) {
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framework.Logf("default service account was not found")
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return false, nil
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}
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if err != nil {
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framework.Logf("error getting default service account: %v", err)
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return false, err
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}
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switch len(sa.Secrets) {
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case 0:
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framework.Logf("default service account has no secret references")
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return false, nil
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case 1:
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framework.Logf("default service account has a single secret reference")
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secrets = sa.Secrets
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return true, nil
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default:
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return false, fmt.Errorf("default service account has too many secret references: %#v", sa.Secrets)
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}
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}))
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// make sure the reference doesn't flutter
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{
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By("ensuring the single token reference persists")
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time.Sleep(2 * time.Second)
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sa, err := f.ClientSet.Core().ServiceAccounts(f.Namespace.Name).Get("default", metav1.GetOptions{})
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framework.ExpectNoError(err)
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Expect(sa.Secrets).To(Equal(secrets))
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}
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// delete the referenced secret
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By("deleting the service account token")
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framework.ExpectNoError(f.ClientSet.Core().Secrets(f.Namespace.Name).Delete(secrets[0].Name, nil))
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// wait for the referenced secret to be removed, and another one autocreated
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framework.ExpectNoError(wait.Poll(time.Millisecond*500, framework.ServiceAccountProvisionTimeout, func() (bool, error) {
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By("waiting for a new token reference")
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sa, err := f.ClientSet.Core().ServiceAccounts(f.Namespace.Name).Get("default", metav1.GetOptions{})
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if err != nil {
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framework.Logf("error getting default service account: %v", err)
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return false, err
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}
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switch len(sa.Secrets) {
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case 0:
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framework.Logf("default service account has no secret references")
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return false, nil
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case 1:
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if sa.Secrets[0] == secrets[0] {
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framework.Logf("default service account still has the deleted secret reference")
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return false, nil
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}
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framework.Logf("default service account has a new single secret reference")
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secrets = sa.Secrets
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return true, nil
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default:
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return false, fmt.Errorf("default service account has too many secret references: %#v", sa.Secrets)
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}
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}))
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// make sure the reference doesn't flutter
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{
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By("ensuring the single token reference persists")
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time.Sleep(2 * time.Second)
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sa, err := f.ClientSet.Core().ServiceAccounts(f.Namespace.Name).Get("default", metav1.GetOptions{})
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framework.ExpectNoError(err)
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Expect(sa.Secrets).To(Equal(secrets))
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}
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// delete the reference from the service account
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By("deleting the reference to the service account token")
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{
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sa, err := f.ClientSet.Core().ServiceAccounts(f.Namespace.Name).Get("default", metav1.GetOptions{})
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framework.ExpectNoError(err)
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sa.Secrets = nil
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_, updateErr := f.ClientSet.Core().ServiceAccounts(f.Namespace.Name).Update(sa)
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framework.ExpectNoError(updateErr)
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}
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// wait for another one to be autocreated
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framework.ExpectNoError(wait.Poll(time.Millisecond*500, framework.ServiceAccountProvisionTimeout, func() (bool, error) {
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By("waiting for a new token to be created and added")
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sa, err := f.ClientSet.Core().ServiceAccounts(f.Namespace.Name).Get("default", metav1.GetOptions{})
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if err != nil {
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framework.Logf("error getting default service account: %v", err)
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return false, err
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}
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switch len(sa.Secrets) {
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case 0:
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framework.Logf("default service account has no secret references")
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return false, nil
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case 1:
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framework.Logf("default service account has a new single secret reference")
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secrets = sa.Secrets
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return true, nil
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default:
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return false, fmt.Errorf("default service account has too many secret references: %#v", sa.Secrets)
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}
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}))
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// make sure the reference doesn't flutter
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{
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By("ensuring the single token reference persists")
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time.Sleep(2 * time.Second)
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sa, err := f.ClientSet.Core().ServiceAccounts(f.Namespace.Name).Get("default", metav1.GetOptions{})
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framework.ExpectNoError(err)
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Expect(sa.Secrets).To(Equal(secrets))
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}
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})
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It("should mount an API token into pods [Conformance]", func() {
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var tokenContent string
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var rootCAContent string
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// Standard get, update retry loop
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framework.ExpectNoError(wait.Poll(time.Millisecond*500, framework.ServiceAccountProvisionTimeout, func() (bool, error) {
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By("getting the auto-created API token")
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sa, err := f.ClientSet.Core().ServiceAccounts(f.Namespace.Name).Get("default", metav1.GetOptions{})
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if apierrors.IsNotFound(err) {
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framework.Logf("default service account was not found")
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return false, nil
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}
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if err != nil {
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framework.Logf("error getting default service account: %v", err)
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return false, err
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}
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if len(sa.Secrets) == 0 {
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framework.Logf("default service account has no secret references")
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return false, nil
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}
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for _, secretRef := range sa.Secrets {
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secret, err := f.ClientSet.Core().Secrets(f.Namespace.Name).Get(secretRef.Name, metav1.GetOptions{})
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if err != nil {
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framework.Logf("Error getting secret %s: %v", secretRef.Name, err)
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continue
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}
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if secret.Type == v1.SecretTypeServiceAccountToken {
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tokenContent = string(secret.Data[v1.ServiceAccountTokenKey])
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rootCAContent = string(secret.Data[v1.ServiceAccountRootCAKey])
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return true, nil
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}
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}
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framework.Logf("default service account has no secret references to valid service account tokens")
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return false, nil
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}))
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pod := &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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GenerateName: "pod-service-account-" + string(uuid.NewUUID()) + "-",
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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: "token-test",
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Image: "gcr.io/google_containers/mounttest:0.7",
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Args: []string{
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fmt.Sprintf("--file_content=%s/%s", serviceaccount.DefaultAPITokenMountPath, v1.ServiceAccountTokenKey),
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},
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},
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{
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Name: "root-ca-test",
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Image: "gcr.io/google_containers/mounttest:0.7",
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Args: []string{
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fmt.Sprintf("--file_content=%s/%s", serviceaccount.DefaultAPITokenMountPath, v1.ServiceAccountRootCAKey),
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},
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},
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},
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RestartPolicy: v1.RestartPolicyNever,
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},
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}
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supportsTokenNamespace, _ := framework.ServerVersionGTE(serviceAccountTokenNamespaceVersion, f.ClientSet.Discovery())
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if supportsTokenNamespace {
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pod.Spec.Containers = append(pod.Spec.Containers, v1.Container{
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Name: "namespace-test",
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Image: "gcr.io/google_containers/mounttest:0.7",
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Args: []string{
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fmt.Sprintf("--file_content=%s/%s", serviceaccount.DefaultAPITokenMountPath, v1.ServiceAccountNamespaceKey),
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},
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})
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}
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f.TestContainerOutput("consume service account token", pod, 0, []string{
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fmt.Sprintf(`content of file "%s/%s": %s`, serviceaccount.DefaultAPITokenMountPath, v1.ServiceAccountTokenKey, tokenContent),
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})
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f.TestContainerOutput("consume service account root CA", pod, 1, []string{
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fmt.Sprintf(`content of file "%s/%s": %s`, serviceaccount.DefaultAPITokenMountPath, v1.ServiceAccountRootCAKey, rootCAContent),
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})
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if supportsTokenNamespace {
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f.TestContainerOutput("consume service account namespace", pod, 2, []string{
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fmt.Sprintf(`content of file "%s/%s": %s`, serviceaccount.DefaultAPITokenMountPath, v1.ServiceAccountNamespaceKey, f.Namespace.Name),
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})
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}
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})
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})
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