Add generated file

This PR adds generated files under pkg/client and vendor folder.

vendor/k8s.io/kubernetes/test/e2e/node/pre_stop.go

@@ -0,0 +1,172 @@
+/*
+Copyright 2014 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package node
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"time"
+
+	"k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/util/wait"
+	clientset "k8s.io/client-go/kubernetes"
+	"k8s.io/kubernetes/test/e2e/framework"
+	imageutils "k8s.io/kubernetes/test/utils/image"
+
+	. "github.com/onsi/ginkgo"
+)
+
+// partially cloned from webserver.go
+type State struct {
+	Received map[string]int
+}
+
+func testPreStop(c clientset.Interface, ns string) {
+	// This is the server that will receive the preStop notification
+	podDescr := &v1.Pod{
+		ObjectMeta: metav1.ObjectMeta{
+			Name: "server",
+		},
+		Spec: v1.PodSpec{
+			Containers: []v1.Container{
+				{
+					Name:  "server",
+					Image: imageutils.GetE2EImage(imageutils.Nettest),
+					Ports: []v1.ContainerPort{{ContainerPort: 8080}},
+				},
+			},
+		},
+	}
+	By(fmt.Sprintf("Creating server pod %s in namespace %s", podDescr.Name, ns))
+	podDescr, err := c.CoreV1().Pods(ns).Create(podDescr)
+	framework.ExpectNoError(err, fmt.Sprintf("creating pod %s", podDescr.Name))
+
+	// At the end of the test, clean up by removing the pod.
+	defer func() {
+		By("Deleting the server pod")
+		c.CoreV1().Pods(ns).Delete(podDescr.Name, nil)
+	}()
+
+	By("Waiting for pods to come up.")
+	err = framework.WaitForPodRunningInNamespace(c, podDescr)
+	framework.ExpectNoError(err, "waiting for server pod to start")
+
+	val := "{\"Source\": \"prestop\"}"
+
+	podOut, err := c.CoreV1().Pods(ns).Get(podDescr.Name, metav1.GetOptions{})
+	framework.ExpectNoError(err, "getting pod info")
+
+	preStopDescr := &v1.Pod{
+		ObjectMeta: metav1.ObjectMeta{
+			Name: "tester",
+		},
+		Spec: v1.PodSpec{
+			Containers: []v1.Container{
+				{
+					Name:    "tester",
+					Image:   "busybox",
+					Command: []string{"sleep", "600"},
+					Lifecycle: &v1.Lifecycle{
+						PreStop: &v1.Handler{
+							Exec: &v1.ExecAction{
+								Command: []string{
+									"wget", "-O-", "--post-data=" + val, fmt.Sprintf("http://%s:8080/write", podOut.Status.PodIP),
+								},
+							},
+						},
+					},
+				},
+			},
+		},
+	}
+
+	By(fmt.Sprintf("Creating tester pod %s in namespace %s", preStopDescr.Name, ns))
+	preStopDescr, err = c.CoreV1().Pods(ns).Create(preStopDescr)
+	framework.ExpectNoError(err, fmt.Sprintf("creating pod %s", preStopDescr.Name))
+	deletePreStop := true
+
+	// At the end of the test, clean up by removing the pod.
+	defer func() {
+		if deletePreStop {
+			By("Deleting the tester pod")
+			c.CoreV1().Pods(ns).Delete(preStopDescr.Name, nil)
+		}
+	}()
+
+	err = framework.WaitForPodRunningInNamespace(c, preStopDescr)
+	framework.ExpectNoError(err, "waiting for tester pod to start")
+
+	// Delete the pod with the preStop handler.
+	By("Deleting pre-stop pod")
+	if err := c.CoreV1().Pods(ns).Delete(preStopDescr.Name, nil); err == nil {
+		deletePreStop = false
+	}
+	framework.ExpectNoError(err, fmt.Sprintf("deleting pod: %s", preStopDescr.Name))
+
+	// Validate that the server received the web poke.
+	err = wait.Poll(time.Second*5, time.Second*60, func() (bool, error) {
+
+		ctx, cancel := context.WithTimeout(context.Background(), framework.SingleCallTimeout)
+		defer cancel()
+
+		var body []byte
+		body, err = c.CoreV1().RESTClient().Get().
+			Context(ctx).
+			Namespace(ns).
+			Resource("pods").
+			SubResource("proxy").
+			Name(podDescr.Name).
+			Suffix("read").
+			DoRaw()
+
+		if err != nil {
+			if ctx.Err() != nil {
+				framework.Failf("Error validating prestop: %v", err)
+				return true, err
+			}
+			By(fmt.Sprintf("Error validating prestop: %v", err))
+		} else {
+			framework.Logf("Saw: %s", string(body))
+			state := State{}
+			err := json.Unmarshal(body, &state)
+			if err != nil {
+				framework.Logf("Error parsing: %v", err)
+				return false, nil
+			}
+			if state.Received["prestop"] != 0 {
+				return true, nil
+			}
+		}
+		return false, nil
+	})
+	framework.ExpectNoError(err, "validating pre-stop.")
+}
+
+var _ = SIGDescribe("PreStop", func() {
+	f := framework.NewDefaultFramework("prestop")
+
+	/*
+		    Testname: pods-prestop-handler-invoked
+		    Description: Makes sure a pod's preStop handler is successfully
+			invoked immediately before a container is terminated.
+	*/
+	framework.ConformanceIt("should call prestop when killing a pod ", func() {
+		testPreStop(f.ClientSet, f.Namespace.Name)
+	})
+})