mirror of
https://github.com/k3s-io/kubernetes.git
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289 lines
12 KiB
Go
289 lines
12 KiB
Go
/*
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Copyright 2018 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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"fmt"
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"time"
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v1 "k8s.io/api/core/v1"
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nodev1 "k8s.io/api/node/v1"
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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/fields"
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types "k8s.io/apimachinery/pkg/types"
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"k8s.io/apimachinery/pkg/util/wait"
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"k8s.io/apimachinery/pkg/watch"
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"k8s.io/kubernetes/pkg/kubelet/events"
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runtimeclasstest "k8s.io/kubernetes/pkg/kubelet/runtimeclass/testing"
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"k8s.io/kubernetes/test/e2e/framework"
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e2eevents "k8s.io/kubernetes/test/e2e/framework/events"
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e2enode "k8s.io/kubernetes/test/e2e/framework/node"
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e2epod "k8s.io/kubernetes/test/e2e/framework/pod"
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"github.com/onsi/ginkgo"
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)
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var _ = ginkgo.Describe("[sig-node] RuntimeClass", func() {
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f := framework.NewDefaultFramework("runtimeclass")
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ginkgo.It("should reject a Pod requesting a non-existent RuntimeClass [NodeFeature:RuntimeHandler]", func() {
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rcName := f.Namespace.Name + "-nonexistent"
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expectPodRejection(f, e2enode.NewRuntimeClassPod(rcName))
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})
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ginkgo.It("should reject a Pod requesting a RuntimeClass with an unconfigured handler [NodeFeature:RuntimeHandler]", func() {
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handler := f.Namespace.Name + "-handler"
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rcName := createRuntimeClass(f, "unconfigured-handler", handler)
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pod := f.PodClient().Create(e2enode.NewRuntimeClassPod(rcName))
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expectSandboxFailureEvent(f, pod, handler)
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})
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// This test requires that the PreconfiguredRuntimeHandler has already been set up on nodes.
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ginkgo.It("should run a Pod requesting a RuntimeClass with a configured handler [NodeFeature:RuntimeHandler]", func() {
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// The built-in docker runtime does not support configuring runtime handlers.
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handler := e2enode.PreconfiguredRuntimeClassHandler(framework.TestContext.ContainerRuntime)
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rcName := createRuntimeClass(f, "preconfigured-handler", handler)
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pod := f.PodClient().Create(e2enode.NewRuntimeClassPod(rcName))
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expectPodSuccess(f, pod)
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})
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ginkgo.It("should reject a Pod requesting a deleted RuntimeClass [NodeFeature:RuntimeHandler]", func() {
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rcName := createRuntimeClass(f, "delete-me", "runc")
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rcClient := f.ClientSet.NodeV1().RuntimeClasses()
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ginkgo.By("Deleting RuntimeClass "+rcName, func() {
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err := rcClient.Delete(context.TODO(), rcName, metav1.DeleteOptions{})
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framework.ExpectNoError(err, "failed to delete RuntimeClass %s", rcName)
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ginkgo.By("Waiting for the RuntimeClass to disappear")
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framework.ExpectNoError(wait.PollImmediate(framework.Poll, time.Minute, func() (bool, error) {
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_, err := rcClient.Get(context.TODO(), rcName, metav1.GetOptions{})
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if apierrors.IsNotFound(err) {
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return true, nil // done
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}
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if err != nil {
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return true, err // stop wait with error
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}
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return false, nil
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}))
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})
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expectPodRejection(f, e2enode.NewRuntimeClassPod(rcName))
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})
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/*
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Release: v1.20
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Testname: RuntimeClass API
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Description:
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The node.k8s.io API group MUST exist in the /apis discovery document.
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The node.k8s.io/v1 API group/version MUST exist in the /apis/mode.k8s.io discovery document.
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The runtimeclasses resource MUST exist in the /apis/node.k8s.io/v1 discovery document.
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The runtimeclasses resource must support create, get, list, watch, update, patch, delete, and deletecollection.
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*/
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framework.ConformanceIt(" should support RuntimeClasses API operations", func() {
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// Setup
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rcVersion := "v1"
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rcClient := f.ClientSet.NodeV1().RuntimeClasses()
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// This is a conformance test that must configure opaque handlers to validate CRUD operations.
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// Test should not use any existing handler like gVisor or runc
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//
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// All CRUD operations in this test are limited to the objects with the label test=f.UniqueName
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rc := runtimeclasstest.NewRuntimeClass(f.UniqueName+"-handler", f.UniqueName+"-conformance-runtime-class")
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rc.SetLabels(map[string]string{"test": f.UniqueName})
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rc2 := runtimeclasstest.NewRuntimeClass(f.UniqueName+"-handler2", f.UniqueName+"-conformance-runtime-class2")
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rc2.SetLabels(map[string]string{"test": f.UniqueName})
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rc3 := runtimeclasstest.NewRuntimeClass(f.UniqueName+"-handler3", f.UniqueName+"-conformance-runtime-class3")
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rc3.SetLabels(map[string]string{"test": f.UniqueName})
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// Discovery
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ginkgo.By("getting /apis")
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{
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discoveryGroups, err := f.ClientSet.Discovery().ServerGroups()
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framework.ExpectNoError(err)
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found := false
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for _, group := range discoveryGroups.Groups {
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if group.Name == nodev1.GroupName {
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for _, version := range group.Versions {
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if version.Version == rcVersion {
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found = true
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break
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}
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}
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}
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}
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framework.ExpectEqual(found, true, fmt.Sprintf("expected RuntimeClass API group/version, got %#v", discoveryGroups.Groups))
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}
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ginkgo.By("getting /apis/node.k8s.io")
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{
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group := &metav1.APIGroup{}
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err := f.ClientSet.Discovery().RESTClient().Get().AbsPath("/apis/node.k8s.io").Do(context.TODO()).Into(group)
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framework.ExpectNoError(err)
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found := false
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for _, version := range group.Versions {
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if version.Version == rcVersion {
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found = true
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break
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}
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}
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framework.ExpectEqual(found, true, fmt.Sprintf("expected RuntimeClass API version, got %#v", group.Versions))
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}
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ginkgo.By("getting /apis/node.k8s.io/" + rcVersion)
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{
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resources, err := f.ClientSet.Discovery().ServerResourcesForGroupVersion(nodev1.SchemeGroupVersion.String())
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framework.ExpectNoError(err)
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found := false
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for _, resource := range resources.APIResources {
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switch resource.Name {
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case "runtimeclasses":
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found = true
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}
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}
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framework.ExpectEqual(found, true, fmt.Sprintf("expected runtimeclasses, got %#v", resources.APIResources))
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}
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// Main resource create/read/update/watch operations
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ginkgo.By("creating")
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createdRC, err := rcClient.Create(context.TODO(), rc, metav1.CreateOptions{})
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framework.ExpectNoError(err)
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_, err = rcClient.Create(context.TODO(), rc, metav1.CreateOptions{})
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framework.ExpectEqual(apierrors.IsAlreadyExists(err), true, fmt.Sprintf("expected 409, got %#v", err))
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_, err = rcClient.Create(context.TODO(), rc2, metav1.CreateOptions{})
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framework.ExpectNoError(err)
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ginkgo.By("watching")
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framework.Logf("starting watch")
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rcWatch, err := rcClient.Watch(context.TODO(), metav1.ListOptions{LabelSelector: "test=" + f.UniqueName})
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framework.ExpectNoError(err)
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// added for a watch
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_, err = rcClient.Create(context.TODO(), rc3, metav1.CreateOptions{})
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framework.ExpectNoError(err)
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ginkgo.By("getting")
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gottenRC, err := rcClient.Get(context.TODO(), rc.Name, metav1.GetOptions{})
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framework.ExpectNoError(err)
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framework.ExpectEqual(gottenRC.UID, createdRC.UID)
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ginkgo.By("listing")
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rcs, err := rcClient.List(context.TODO(), metav1.ListOptions{LabelSelector: "test=" + f.UniqueName})
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framework.ExpectNoError(err)
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framework.ExpectEqual(len(rcs.Items), 3, "filtered list should have 3 items")
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ginkgo.By("patching")
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patchedRC, err := rcClient.Patch(context.TODO(), createdRC.Name, types.MergePatchType, []byte(`{"metadata":{"annotations":{"patched":"true"}}}`), metav1.PatchOptions{})
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framework.ExpectNoError(err)
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framework.ExpectEqual(patchedRC.Annotations["patched"], "true", "patched object should have the applied annotation")
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ginkgo.By("updating")
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csrToUpdate := patchedRC.DeepCopy()
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csrToUpdate.Annotations["updated"] = "true"
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updatedRC, err := rcClient.Update(context.TODO(), csrToUpdate, metav1.UpdateOptions{})
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framework.ExpectNoError(err)
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framework.ExpectEqual(updatedRC.Annotations["updated"], "true", "updated object should have the applied annotation")
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framework.Logf("waiting for watch events with expected annotations")
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for sawAdded, sawPatched, sawUpdated := false, false, false; !sawAdded && !sawPatched && !sawUpdated; {
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select {
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case evt, ok := <-rcWatch.ResultChan():
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framework.ExpectEqual(ok, true, "watch channel should not close")
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if evt.Type == watch.Modified {
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watchedRC, isRC := evt.Object.(*nodev1.RuntimeClass)
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framework.ExpectEqual(isRC, true, fmt.Sprintf("expected RC, got %T", evt.Object))
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if watchedRC.Annotations["patched"] == "true" {
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framework.Logf("saw patched annotations")
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sawPatched = true
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} else if watchedRC.Annotations["updated"] == "true" {
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framework.Logf("saw updated annotations")
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sawUpdated = true
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} else {
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framework.Logf("missing expected annotations, waiting: %#v", watchedRC.Annotations)
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}
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} else if evt.Type == watch.Added {
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_, isRC := evt.Object.(*nodev1.RuntimeClass)
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framework.ExpectEqual(isRC, true, fmt.Sprintf("expected RC, got %T", evt.Object))
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sawAdded = true
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}
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case <-time.After(wait.ForeverTestTimeout):
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framework.Fail("timed out waiting for watch event")
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}
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}
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rcWatch.Stop()
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// main resource delete operations
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ginkgo.By("deleting")
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err = rcClient.Delete(context.TODO(), createdRC.Name, metav1.DeleteOptions{})
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framework.ExpectNoError(err)
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_, err = rcClient.Get(context.TODO(), createdRC.Name, metav1.GetOptions{})
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framework.ExpectEqual(apierrors.IsNotFound(err), true, fmt.Sprintf("expected 404, got %#v", err))
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rcs, err = rcClient.List(context.TODO(), metav1.ListOptions{LabelSelector: "test=" + f.UniqueName})
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framework.ExpectNoError(err)
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framework.ExpectEqual(len(rcs.Items), 2, "filtered list should have 2 items")
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ginkgo.By("deleting a collection")
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err = rcClient.DeleteCollection(context.TODO(), metav1.DeleteOptions{}, metav1.ListOptions{LabelSelector: "test=" + f.UniqueName})
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framework.ExpectNoError(err)
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rcs, err = rcClient.List(context.TODO(), metav1.ListOptions{LabelSelector: "test=" + f.UniqueName})
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framework.ExpectNoError(err)
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framework.ExpectEqual(len(rcs.Items), 0, "filtered list should have 0 items")
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})
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})
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// createRuntimeClass generates a RuntimeClass with the desired handler and a "namespaced" name,
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// synchronously creates it, and returns the generated name.
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func createRuntimeClass(f *framework.Framework, name, handler string) string {
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uniqueName := fmt.Sprintf("%s-%s", f.Namespace.Name, name)
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rc := runtimeclasstest.NewRuntimeClass(uniqueName, handler)
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rc, err := f.ClientSet.NodeV1().RuntimeClasses().Create(context.TODO(), rc, metav1.CreateOptions{})
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framework.ExpectNoError(err, "failed to create RuntimeClass resource")
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return rc.GetName()
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}
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func expectPodRejection(f *framework.Framework, pod *v1.Pod) {
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_, err := f.ClientSet.CoreV1().Pods(f.Namespace.Name).Create(context.TODO(), pod, metav1.CreateOptions{})
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framework.ExpectError(err, "should be forbidden")
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framework.ExpectEqual(apierrors.IsForbidden(err), true, "should be forbidden error")
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}
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// expectPodSuccess waits for the given pod to terminate successfully.
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func expectPodSuccess(f *framework.Framework, pod *v1.Pod) {
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framework.ExpectNoError(e2epod.WaitForPodSuccessInNamespace(
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f.ClientSet, pod.Name, f.Namespace.Name))
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}
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// expectSandboxFailureEvent polls for an event with reason "FailedCreatePodSandBox" containing the
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// expected message string.
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func expectSandboxFailureEvent(f *framework.Framework, pod *v1.Pod, msg string) {
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eventSelector := fields.Set{
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"involvedObject.kind": "Pod",
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"involvedObject.name": pod.Name,
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"involvedObject.namespace": f.Namespace.Name,
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"reason": events.FailedCreatePodSandBox,
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}.AsSelector().String()
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framework.ExpectNoError(e2eevents.WaitTimeoutForEvent(
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f.ClientSet, f.Namespace.Name, eventSelector, msg, framework.PodEventTimeout))
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}
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