5614a9d064
The "todo" packages were necessary while moving code around to avoid hitting cyclic dependencies. Now that any sub package can depend on the framework, they are no longer needed and the code can be moved into the normal sub packages.
188 lines
7.6 KiB
Go
188 lines
7.6 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 node
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import (
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"fmt"
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"strings"
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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/util/intstr"
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"k8s.io/kubernetes/test/e2e/framework"
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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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imageutils "k8s.io/kubernetes/test/utils/image"
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admissionapi "k8s.io/pod-security-admission/api"
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"github.com/onsi/ginkgo/v2"
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"github.com/onsi/gomega"
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)
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var _ = SIGDescribe("Container Lifecycle Hook", func() {
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f := framework.NewDefaultFramework("container-lifecycle-hook")
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f.NamespacePodSecurityEnforceLevel = admissionapi.LevelBaseline
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var podClient *e2epod.PodClient
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const (
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podCheckInterval = 1 * time.Second
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postStartWaitTimeout = 2 * time.Minute
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preStopWaitTimeout = 30 * time.Second
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)
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ginkgo.Context("when create a pod with lifecycle hook", func() {
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var targetIP, targetURL, targetNode string
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ports := []v1.ContainerPort{
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{
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ContainerPort: 8080,
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Protocol: v1.ProtocolTCP,
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},
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}
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podHandleHookRequest := e2epod.NewAgnhostPod("", "pod-handle-http-request", nil, nil, ports, "netexec")
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ginkgo.BeforeEach(func() {
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node, err := e2enode.GetRandomReadySchedulableNode(f.ClientSet)
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framework.ExpectNoError(err)
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targetNode = node.Name
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nodeSelection := e2epod.NodeSelection{}
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e2epod.SetAffinity(&nodeSelection, targetNode)
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e2epod.SetNodeSelection(&podHandleHookRequest.Spec, nodeSelection)
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podClient = e2epod.NewPodClient(f)
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ginkgo.By("create the container to handle the HTTPGet hook request.")
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newPod := podClient.CreateSync(podHandleHookRequest)
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targetIP = newPod.Status.PodIP
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targetURL = targetIP
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if strings.Contains(targetIP, ":") {
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targetURL = fmt.Sprintf("[%s]", targetIP)
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}
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})
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testPodWithHook := func(podWithHook *v1.Pod) {
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ginkgo.By("create the pod with lifecycle hook")
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podClient.CreateSync(podWithHook)
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if podWithHook.Spec.Containers[0].Lifecycle.PostStart != nil {
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ginkgo.By("check poststart hook")
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gomega.Eventually(func() error {
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return podClient.MatchContainerOutput(podHandleHookRequest.Name, podHandleHookRequest.Spec.Containers[0].Name,
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`GET /echo\?msg=poststart`)
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}, postStartWaitTimeout, podCheckInterval).Should(gomega.BeNil())
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}
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ginkgo.By("delete the pod with lifecycle hook")
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podClient.DeleteSync(podWithHook.Name, *metav1.NewDeleteOptions(15), e2epod.DefaultPodDeletionTimeout)
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if podWithHook.Spec.Containers[0].Lifecycle.PreStop != nil {
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ginkgo.By("check prestop hook")
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gomega.Eventually(func() error {
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return podClient.MatchContainerOutput(podHandleHookRequest.Name, podHandleHookRequest.Spec.Containers[0].Name,
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`GET /echo\?msg=prestop`)
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}, preStopWaitTimeout, podCheckInterval).Should(gomega.BeNil())
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}
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}
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/*
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Release: v1.9
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Testname: Pod Lifecycle, post start exec hook
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Description: When a post start handler is specified in the container lifecycle using a 'Exec' action, then the handler MUST be invoked after the start of the container. A server pod is created that will serve http requests, create a second pod with a container lifecycle specifying a post start that invokes the server pod using ExecAction to validate that the post start is executed.
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*/
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framework.ConformanceIt("should execute poststart exec hook properly [NodeConformance]", func() {
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lifecycle := &v1.Lifecycle{
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PostStart: &v1.LifecycleHandler{
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Exec: &v1.ExecAction{
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Command: []string{"sh", "-c", "curl http://" + targetURL + ":8080/echo?msg=poststart"},
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},
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},
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}
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podWithHook := getPodWithHook("pod-with-poststart-exec-hook", imageutils.GetE2EImage(imageutils.Agnhost), lifecycle)
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testPodWithHook(podWithHook)
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})
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/*
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Release: v1.9
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Testname: Pod Lifecycle, prestop exec hook
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Description: When a pre-stop handler is specified in the container lifecycle using a 'Exec' action, then the handler MUST be invoked before the container is terminated. A server pod is created that will serve http requests, create a second pod with a container lifecycle specifying a pre-stop that invokes the server pod using ExecAction to validate that the pre-stop is executed.
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*/
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framework.ConformanceIt("should execute prestop exec hook properly [NodeConformance]", func() {
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lifecycle := &v1.Lifecycle{
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PreStop: &v1.LifecycleHandler{
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Exec: &v1.ExecAction{
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Command: []string{"sh", "-c", "curl http://" + targetURL + ":8080/echo?msg=prestop"},
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},
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},
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}
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podWithHook := getPodWithHook("pod-with-prestop-exec-hook", imageutils.GetE2EImage(imageutils.Agnhost), lifecycle)
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testPodWithHook(podWithHook)
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})
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/*
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Release: v1.9
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Testname: Pod Lifecycle, post start http hook
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Description: When a post start handler is specified in the container lifecycle using a HttpGet action, then the handler MUST be invoked after the start of the container. A server pod is created that will serve http requests, create a second pod on the same node with a container lifecycle specifying a post start that invokes the server pod to validate that the post start is executed.
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*/
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framework.ConformanceIt("should execute poststart http hook properly [NodeConformance]", func() {
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lifecycle := &v1.Lifecycle{
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PostStart: &v1.LifecycleHandler{
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HTTPGet: &v1.HTTPGetAction{
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Path: "/echo?msg=poststart",
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Host: targetIP,
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Port: intstr.FromInt(8080),
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},
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},
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}
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podWithHook := getPodWithHook("pod-with-poststart-http-hook", imageutils.GetPauseImageName(), lifecycle)
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// make sure we spawn the test pod on the same node as the webserver.
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nodeSelection := e2epod.NodeSelection{}
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e2epod.SetAffinity(&nodeSelection, targetNode)
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e2epod.SetNodeSelection(&podWithHook.Spec, nodeSelection)
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testPodWithHook(podWithHook)
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})
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/*
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Release: v1.9
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Testname: Pod Lifecycle, prestop http hook
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Description: When a pre-stop handler is specified in the container lifecycle using a 'HttpGet' action, then the handler MUST be invoked before the container is terminated. A server pod is created that will serve http requests, create a second pod on the same node with a container lifecycle specifying a pre-stop that invokes the server pod to validate that the pre-stop is executed.
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*/
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framework.ConformanceIt("should execute prestop http hook properly [NodeConformance]", func() {
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lifecycle := &v1.Lifecycle{
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PreStop: &v1.LifecycleHandler{
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HTTPGet: &v1.HTTPGetAction{
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Path: "/echo?msg=prestop",
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Host: targetIP,
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Port: intstr.FromInt(8080),
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},
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},
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}
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podWithHook := getPodWithHook("pod-with-prestop-http-hook", imageutils.GetPauseImageName(), lifecycle)
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// make sure we spawn the test pod on the same node as the webserver.
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nodeSelection := e2epod.NodeSelection{}
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e2epod.SetAffinity(&nodeSelection, targetNode)
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e2epod.SetNodeSelection(&podWithHook.Spec, nodeSelection)
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testPodWithHook(podWithHook)
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})
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})
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})
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func getPodWithHook(name string, image string, lifecycle *v1.Lifecycle) *v1.Pod {
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return &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: name,
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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: name,
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Image: image,
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Lifecycle: lifecycle,
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},
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},
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},
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}
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}
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