Change:
PreStop in Lifecycle is a very excited feature that I want it so much. With it, I can do some clean work before killing the Pod/Container, for example, I need this container stop receiving requests first, then complete processing its requests already received before it is killed. However It does not work as PostStop now. And I have checked the latest code and found it is still not implemented. Could anyone give a time point on it?
Sorry, prestop hasn't been implemented yet. See discussion in .
I'll implement it once is finished
thanks, I will also subscribe
/subscribe
Moved to post-1.0
PR is in flight.
was merged. We should add an e2e test, though.
Tried by E2E, it works! And it can be closed. Well done.

Discussion:
<ins> /* Copyright 2014 The Kubernetes Authors All rights reserved. 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 e2e import ( "encoding/json" "fmt" "time" "github.com/GoogleCloudPlatform/kubernetes/pkg/api" "github.com/GoogleCloudPlatform/kubernetes/pkg/client" "github.com/GoogleCloudPlatform/kubernetes/pkg/util/wait" . "github.com/onsi/ginkgo" ) // partially cloned from webserver.go type State struct { Received map[string]int } func testPreStop(c *client.Client, ns string) { // This is the server that will receive the preStop notification podDescr := &api.Pod{ ObjectMeta: api.ObjectMeta{ Name: "server", }, Spec: api.PodSpec{ Containers: []api.Container{ { Name:  "server", Image: "gcr.io/google_containers/nettest:1.3", Ports: []api.ContainerPort{{ContainerPort: 8080}}, }, }, }, } By(fmt.Sprintf("Creating server pod %s in namespace %s", podDescr.Name, ns)) _, err := c.Pods(ns).Create(podDescr) 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.Pods(ns).Delete(podDescr.Name, nil) }() By("Waiting for pods to come up.") err = waitForPodRunningInNamespace(c, podDescr.Name, ns) expectNoError(err, "waiting for server pod to start") val := "{"Source": "prestop"}" podOut, err := c.Pods(ns).Get(podDescr.Name) expectNoError(err, "getting pod info") preStopDescr := &api.Pod{ ObjectMeta: api.ObjectMeta{ Name: "tester", }, Spec: api.PodSpec{ Containers: []api.Container{ { Name:    "tester", Image:   "busybox", Command: []string{"sleep", "600"}, Lifecycle: &api.Lifecycle{ PreStop: &api.Handler{ Exec: &api.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", podDescr.Name, ns)) _, err = c.Pods(ns).Create(preStopDescr) 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.Pods(ns).Delete(preStopDescr.Name, nil) } }() err = waitForPodRunningInNamespace(c, preStopDescr.Name, ns) expectNoError(err, "waiting for tester pod to start") // Delete the pod with the preStop handler. By("Deleting pre-stop pod") if err := c.Pods(ns).Delete(preStopDescr.Name, nil); err == nil { deletePreStop = false } 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) { if body, err := c.Get(). Namespace(ns).Prefix("proxy"). Resource("pods"). Name(podDescr.Name). Suffix("read"). DoRaw(); err != nil { By(fmt.Sprintf("Error validating prestop: %v", err)) } else { state := State{} err := json.Unmarshal(body, &state) if err != nil { Logf("Error parsing: %v", err) return false, nil } if state.Received["prestop"] != 0 { return true, nil } Logf("Saw: %s", string(body)) } return false, nil }) expectNoError(err, "validating pre-stop.") } var _ = Describe("PreStop", func() { f := NewFramework("prestop") It("should call prestop when killing a pod", func() { testPreStop(f.Client, f.Namespace.Name) }) }) </ins>