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185 lines
7.0 KiB
Go
185 lines
7.0 KiB
Go
/*
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Copyright 2020 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 common
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import (
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"context"
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"encoding/json"
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"time"
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v1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/types"
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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/test/e2e/framework"
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imageutils "k8s.io/kubernetes/test/utils/image"
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"github.com/onsi/ginkgo"
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)
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const (
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podTemplateRetryPeriod = 1 * time.Second
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podTemplateRetryTimeout = 1 * time.Minute
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)
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var _ = ginkgo.Describe("[sig-node] PodTemplates", func() {
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f := framework.NewDefaultFramework("podtemplate")
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/*
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Release: v1.19
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Testname: PodTemplate lifecycle
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Description: Attempt to create a PodTemplate. Patch the created PodTemplate. Fetching the PodTemplate MUST reflect changes.
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By fetching all the PodTemplates via a Label selector it MUST find the PodTemplate by it's static label and updated value. The PodTemplate must be deleted.
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*/
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framework.ConformanceIt("should run the lifecycle of PodTemplates", func() {
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testNamespaceName := f.Namespace.Name
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podTemplateName := "nginx-pod-template-" + string(uuid.NewUUID())
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// get a list of PodTemplates (in all namespaces to hit endpoint)
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podTemplateList, err := f.ClientSet.CoreV1().PodTemplates("").List(context.TODO(), metav1.ListOptions{
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LabelSelector: "podtemplate-static=true",
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})
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framework.ExpectNoError(err, "failed to list all PodTemplates")
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framework.ExpectEqual(len(podTemplateList.Items), 0, "unable to find templates")
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// create a PodTemplate
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_, err = f.ClientSet.CoreV1().PodTemplates(testNamespaceName).Create(context.TODO(), &v1.PodTemplate{
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ObjectMeta: metav1.ObjectMeta{
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Name: podTemplateName,
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Labels: map[string]string{
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"podtemplate-static": "true",
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},
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},
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Template: v1.PodTemplateSpec{
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Spec: v1.PodSpec{
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Containers: []v1.Container{
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{Name: "nginx", Image: "nginx"},
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},
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},
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},
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}, metav1.CreateOptions{})
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framework.ExpectNoError(err, "failed to create PodTemplate")
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// get template
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podTemplateRead, err := f.ClientSet.CoreV1().PodTemplates(testNamespaceName).Get(context.TODO(), podTemplateName, metav1.GetOptions{})
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framework.ExpectNoError(err, "failed to get created PodTemplate")
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framework.ExpectEqual(podTemplateRead.ObjectMeta.Name, podTemplateName)
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// patch template
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podTemplatePatch, err := json.Marshal(map[string]interface{}{
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"metadata": map[string]interface{}{
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"labels": map[string]string{
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"podtemplate": "patched",
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},
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},
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})
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framework.ExpectNoError(err, "failed to marshal patch data")
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_, err = f.ClientSet.CoreV1().PodTemplates(testNamespaceName).Patch(context.TODO(), podTemplateName, types.StrategicMergePatchType, []byte(podTemplatePatch), metav1.PatchOptions{})
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framework.ExpectNoError(err, "failed to patch PodTemplate")
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// get template (ensure label is there)
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podTemplateRead, err = f.ClientSet.CoreV1().PodTemplates(testNamespaceName).Get(context.TODO(), podTemplateName, metav1.GetOptions{})
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framework.ExpectNoError(err, "failed to get PodTemplate")
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framework.ExpectEqual(podTemplateRead.ObjectMeta.Labels["podtemplate"], "patched", "failed to patch template, new label not found")
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// delete the PodTemplate
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err = f.ClientSet.CoreV1().PodTemplates(testNamespaceName).Delete(context.TODO(), podTemplateName, metav1.DeleteOptions{})
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framework.ExpectNoError(err, "failed to delete PodTemplate")
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// list the PodTemplates
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podTemplateList, err = f.ClientSet.CoreV1().PodTemplates("").List(context.TODO(), metav1.ListOptions{
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LabelSelector: "podtemplate-static=true",
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})
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framework.ExpectNoError(err, "failed to list PodTemplate")
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framework.ExpectEqual(len(podTemplateList.Items), 0, "PodTemplate list returned items, failed to delete PodTemplate")
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})
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/*
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Release: v1.19
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Testname: PodTemplate, delete a collection
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Description: A set of Pod Templates is created with a label selector which MUST be found when listed.
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The set of Pod Templates is deleted and MUST NOT show up when listed by its label selector.
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*/
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framework.ConformanceIt("should delete a collection of pod templates", func() {
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podTemplateNames := []string{"test-podtemplate-1", "test-podtemplate-2", "test-podtemplate-3"}
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ginkgo.By("Create set of pod templates")
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// create a set of pod templates in test namespace
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for _, podTemplateName := range podTemplateNames {
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_, err := f.ClientSet.CoreV1().PodTemplates(f.Namespace.Name).Create(context.TODO(), &v1.PodTemplate{
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ObjectMeta: metav1.ObjectMeta{
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Name: podTemplateName,
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Labels: map[string]string{"podtemplate-set": "true"},
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},
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Template: v1.PodTemplateSpec{
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Spec: v1.PodSpec{
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Containers: []v1.Container{
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{Name: "token-test", Image: imageutils.GetE2EImage(imageutils.Agnhost)},
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},
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},
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},
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}, metav1.CreateOptions{})
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framework.ExpectNoError(err, "failed to create pod template")
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framework.Logf("created %v", podTemplateName)
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}
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ginkgo.By("get a list of pod templates with a label in the current namespace")
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// get a list of pod templates
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podTemplateList, err := f.ClientSet.CoreV1().PodTemplates(f.Namespace.Name).List(context.TODO(), metav1.ListOptions{
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LabelSelector: "podtemplate-set=true",
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})
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framework.ExpectNoError(err, "failed to get a list of pod templates")
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framework.ExpectEqual(len(podTemplateList.Items), len(podTemplateNames), "looking for expected number of pod templates")
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ginkgo.By("delete collection of pod templates")
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// delete collection
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framework.Logf("requesting DeleteCollection of pod templates")
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err = f.ClientSet.CoreV1().PodTemplates(f.Namespace.Name).DeleteCollection(context.TODO(), metav1.DeleteOptions{}, metav1.ListOptions{
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LabelSelector: "podtemplate-set=true"})
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framework.ExpectNoError(err, "failed to delete all pod templates")
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ginkgo.By("check that the list of pod templates matches the requested quantity")
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err = wait.PollImmediate(podTemplateRetryPeriod, podTemplateRetryTimeout, checkPodTemplateListQuantity(f, "podtemplate-set=true", 0))
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framework.ExpectNoError(err, "failed to count required pod templates")
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})
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})
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func checkPodTemplateListQuantity(f *framework.Framework, label string, quantity int) func() (bool, error) {
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return func() (bool, error) {
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var err error
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framework.Logf("requesting list of pod templates to confirm quantity")
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list, err := f.ClientSet.CoreV1().PodTemplates(f.Namespace.Name).List(context.TODO(), metav1.ListOptions{
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LabelSelector: label})
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if err != nil {
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return false, err
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}
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if len(list.Items) != quantity {
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return false, err
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}
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return true, nil
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}
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}
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