Golang framework.GetPodLogs函數代碼示例

func doTestConnectSendDisconnect(bindAddress string, f *framework.Framework) {
	By("creating the target pod")
	pod := pfPod("", "10", "10", "100", fmt.Sprintf("%s", bindAddress))
	if _, err := f.ClientSet.Core().Pods(f.Namespace.Name).Create(pod); err != nil {
		framework.Failf("Couldn't create pod: %v", err)
	}
	if err := f.WaitForPodReady(pod.Name); err != nil {
		framework.Failf("Pod did not start running: %v", err)
	}
	defer func() {
		logs, err := framework.GetPodLogs(f.ClientSet, f.Namespace.Name, pod.Name, "portforwardtester")
		if err != nil {
			framework.Logf("Error getting pod log: %v", err)
		} else {
			framework.Logf("Pod log:\n%s", logs)
		}
	}()

	By("Running 'kubectl port-forward'")
	cmd := runPortForward(f.Namespace.Name, pod.Name, 80)
	defer cmd.Stop()

	By("Dialing the local port")
	conn, err := net.Dial("tcp", fmt.Sprintf("127.0.0.1:%d", cmd.port))
	if err != nil {
		framework.Failf("Couldn't connect to port %d: %v", cmd.port, err)
	}
	defer func() {
		By("Closing the connection to the local port")
		conn.Close()
	}()

	By("Reading data from the local port")
	fromServer, err := ioutil.ReadAll(conn)
	if err != nil {
		framework.Failf("Unexpected error reading data from the server: %v", err)
	}

	if e, a := strings.Repeat("x", 100), string(fromServer); e != a {
		framework.Failf("Expected %q from server, got %q", e, a)
	}

	By("Waiting for the target pod to stop running")
	if err := WaitForTerminatedContainer(f, pod, "portforwardtester"); err != nil {
		framework.Failf("Container did not terminate: %v", err)
	}

	By("Verifying logs")
	logOutput, err := framework.GetPodLogs(f.ClientSet, f.Namespace.Name, pod.Name, "portforwardtester")
	if err != nil {
		framework.Failf("Error retrieving pod logs: %v", err)
	}
	verifyLogMessage(logOutput, "Accepted client connection")
	verifyLogMessage(logOutput, "Done")
}

// Run a test container to try and contact the Kubernetes api-server from a pod, wait for it
// to flip to Ready, log its output and delete it.
func runKubernetesServiceTestContainer(c clientset.Interface, ns string) {
	path := "test/images/clusterapi-tester/pod.yaml"
	p, err := podFromManifest(path)
	if err != nil {
		framework.Logf("Failed to parse clusterapi-tester from manifest %v: %v", path, err)
		return
	}
	p.Namespace = ns
	if _, err := c.Core().Pods(ns).Create(p); err != nil {
		framework.Logf("Failed to create %v: %v", p.Name, err)
		return
	}
	defer func() {
		if err := c.Core().Pods(ns).Delete(p.Name, nil); err != nil {
			framework.Logf("Failed to delete pod %v: %v", p.Name, err)
		}
	}()
	timeout := 5 * time.Minute
	if err := framework.WaitForPodCondition(c, ns, p.Name, "clusterapi-tester", timeout, testutils.PodRunningReady); err != nil {
		framework.Logf("Pod %v took longer than %v to enter running/ready: %v", p.Name, timeout, err)
		return
	}
	logs, err := framework.GetPodLogs(c, ns, p.Name, p.Spec.Containers[0].Name)
	if err != nil {
		framework.Logf("Failed to retrieve logs from %v: %v", p.Name, err)
	} else {
		framework.Logf("Output of clusterapi-tester:\n%v", logs)
	}
}

func reportLogsFromFluentdPod(f *framework.Framework) error {
	synthLoggerPod, err := f.PodClient().Get(synthLoggerPodName, metav1.GetOptions{})
	if err != nil {
		return fmt.Errorf("Failed to get synth logger pod due to %v", err)
	}

	synthLoggerNodeName := synthLoggerPod.Spec.NodeName
	if synthLoggerNodeName == "" {
		return errors.New("Synthlogger pod is not assigned to the node")
	}

	label := labels.SelectorFromSet(labels.Set(map[string]string{"k8s-app": "fluentd-logging"}))
	options := v1.ListOptions{LabelSelector: label.String()}
	fluentdPods, err := f.ClientSet.Core().Pods(api.NamespaceSystem).List(options)

	for _, fluentdPod := range fluentdPods.Items {
		if fluentdPod.Spec.NodeName == synthLoggerNodeName {
			containerName := fluentdPod.Spec.Containers[0].Name
			logs, err := framework.GetPodLogs(f.ClientSet, api.NamespaceSystem, fluentdPod.Name, containerName)
			if err != nil {
				return fmt.Errorf("Failed to get logs from fluentd pod %s due to %v", fluentdPod.Name, err)
			}
			framework.Logf("Logs from fluentd pod %s:\n%s", fluentdPod.Name, logs)
			return nil
		}
	}

	return fmt.Errorf("Failed to find fluentd pod running on node %s", synthLoggerNodeName)
}

func doTestMustConnectSendNothing(bindAddress string, f *framework.Framework) {
	By("creating the target pod")
	pod := pfPod("abc", "1", "1", "1", fmt.Sprintf("%s", bindAddress))
	if _, err := f.ClientSet.Core().Pods(f.Namespace.Name).Create(pod); err != nil {
		framework.Failf("Couldn't create pod: %v", err)
	}
	if err := f.WaitForPodReady(pod.Name); err != nil {
		framework.Failf("Pod did not start running: %v", err)
	}
	defer func() {
		logs, err := framework.GetPodLogs(f.ClientSet, f.Namespace.Name, pod.Name, "portforwardtester")
		if err != nil {
			framework.Logf("Error getting pod log: %v", err)
		} else {
			framework.Logf("Pod log:\n%s", logs)
		}
	}()

	By("Running 'kubectl port-forward'")
	cmd := runPortForward(f.Namespace.Name, pod.Name, 80)
	defer cmd.Stop()

	By("Dialing the local port")
	conn, err := net.Dial("tcp", fmt.Sprintf("127.0.0.1:%d", cmd.port))
	if err != nil {
		framework.Failf("Couldn't connect to port %d: %v", cmd.port, err)
	}

	By("Closing the connection to the local port")
	conn.Close()

	By("Waiting for the target pod to stop running")
	if err := WaitForTerminatedContainer(f, pod, "portforwardtester"); err != nil {
		framework.Failf("Container did not terminate: %v", err)
	}

	By("Verifying logs")
	logOutput, err := framework.GetPodLogs(f.ClientSet, f.Namespace.Name, pod.Name, "portforwardtester")
	if err != nil {
		framework.Failf("Error retrieving pod logs: %v", err)
	}
	verifyLogMessage(logOutput, "Accepted client connection")
	verifyLogMessage(logOutput, "Expected to read 3 bytes from client, but got 0 instead")
}

func podExitCodeDetector(f *framework.Framework, name, namespace string, code int32) func() error {
	// If we ever get any container logs, stash them here.
	logs := ""

	logerr := func(err error) error {
		if err == nil {
			return nil
		}
		if logs == "" {
			return err
		}
		return fmt.Errorf("%s (%v)", logs, err)
	}

	return func() error {
		pod, err := f.ClientSet.Core().Pods(namespace).Get(name)
		if err != nil {
			return logerr(err)
		}
		if len(pod.Status.ContainerStatuses) < 1 {
			return logerr(fmt.Errorf("no container statuses"))
		}

		// Best effort attempt to grab pod logs for debugging
		logs, err = framework.GetPodLogs(f.ClientSet, namespace, name, pod.Spec.Containers[0].Name)
		if err != nil {
			framework.Logf("Cannot fetch pod logs: %v", err)
		}

		status := pod.Status.ContainerStatuses[0]
		if status.State.Terminated == nil {
			return logerr(fmt.Errorf("container is not in terminated state"))
		}
		if status.State.Terminated.ExitCode == code {
			return nil
		}

		return logerr(fmt.Errorf("exited %d", status.State.Terminated.ExitCode))
	}
}

func printStatusAndLogsForNotReadyPods(c *client.Client, ns string, podNames []string, pods []*api.Pod) {
	printFn := func(id, log string, err error, previous bool) {
		prefix := "Retrieving log for container"
		if previous {
			prefix = "Retrieving log for the last terminated container"
		}
		if err != nil {
			framework.Logf("%s %s, err: %v:\n%s\n", prefix, id, err, log)
		} else {
			framework.Logf("%s %s:\n%s\n", prefix, id, log)
		}
	}
	podNameSet := sets.NewString(podNames...)
	for _, p := range pods {
		if p.Namespace != ns {
			continue
		}
		if !podNameSet.Has(p.Name) {
			continue
		}
		if ok, _ := framework.PodRunningReady(p); ok {
			continue
		}
		framework.Logf("Status for not ready pod %s/%s: %+v", p.Namespace, p.Name, p.Status)
		// Print the log of the containers if pod is not running and ready.
		for _, container := range p.Status.ContainerStatuses {
			cIdentifer := fmt.Sprintf("%s/%s/%s", p.Namespace, p.Name, container.Name)
			log, err := framework.GetPodLogs(c, p.Namespace, p.Name, container.Name)
			printFn(cIdentifer, log, err, false)
			// Get log from the previous container.
			if container.RestartCount > 0 {
				printFn(cIdentifer, log, err, true)
			}
		}
	}
}

		if ev != nil && ev.Reason == sysctl.UnsupportedReason {
			framework.Skipf("No sysctl support in Docker <1.12")
		}
		Expect(ev).To(BeNil())

		By("Waiting for pod completion")
		err = f.WaitForPodNoLongerRunning(pod.Name)
		Expect(err).NotTo(HaveOccurred())
		pod, err = podClient.Get(pod.Name, metav1.GetOptions{})
		Expect(err).NotTo(HaveOccurred())

		By("Checking that the pod succeeded")
		Expect(pod.Status.Phase).To(Equal(v1.PodSucceeded))

		By("Getting logs from the pod")
		log, err := framework.GetPodLogs(f.ClientSet, f.Namespace.Name, pod.Name, pod.Spec.Containers[0].Name)
		Expect(err).NotTo(HaveOccurred())

		By("Checking that the sysctl is actually updated")
		Expect(log).To(ContainSubstring("kernel.shm_rmid_forced = 1"))
	})

	It("should support unsafe sysctls which are actually whitelisted", func() {
		pod := testPod()
		pod.Annotations[v1.UnsafeSysctlsPodAnnotationKey] = v1.PodAnnotationsFromSysctls([]v1.Sysctl{
			{
				Name:  "kernel.shm_rmid_forced",
				Value: "1",
			},
		})
		pod.Spec.Containers[0].Command = []string{"/bin/sysctl", "kernel.shm_rmid_forced"}

				RestartPolicy: api.RestartPolicyNever,
			},
		}

		defer func() {
			By("Deleting the pod")
			f.Client.Pods(f.Namespace.Name).Delete(pod.Name, api.NewDeleteOptions(0))
		}()
		By("Creating the pod")
		_, err = f.Client.Pods(f.Namespace.Name).Create(pod)
		Expect(err).NotTo(HaveOccurred())

		framework.ExpectNoError(framework.WaitForPodRunningInNamespace(f.Client, pod.Name, f.Namespace.Name))

		pollLogs := func() (string, error) {
			return framework.GetPodLogs(f.Client, f.Namespace.Name, pod.Name, containerName)
		}

		Eventually(pollLogs, podLogTimeout, framework.Poll).Should(ContainSubstring("value-1"))

		By(fmt.Sprintf("Updating configmap %v", configMap.Name))
		configMap.ResourceVersion = "" // to force update
		configMap.Data["data-1"] = "value-2"
		_, err = f.Client.ConfigMaps(f.Namespace.Name).Update(configMap)
		Expect(err).NotTo(HaveOccurred())

		By("waiting to observe update in volume")
		Eventually(pollLogs, podLogTimeout, framework.Poll).Should(ContainSubstring("value-2"))
	})

	It("should be consumable via environment variable [Conformance]", func() {

				By(fmt.Sprintf("Make sure node condition %q is set", condition))
				Eventually(func() error {
					return verifyCondition(c.Core().Nodes(), node.Name, condition, test.conditionType, test.conditionReason, test.conditionMessage)
				}, pollTimeout, pollInterval).Should(Succeed())
				By(fmt.Sprintf("Make sure node condition %q is stable", condition))
				Consistently(func() error {
					return verifyCondition(c.Core().Nodes(), node.Name, condition, test.conditionType, test.conditionReason, test.conditionMessage)
				}, pollConsistent, pollInterval).Should(Succeed())
			}
		})

		AfterEach(func() {
			if CurrentGinkgoTestDescription().Failed && framework.TestContext.DumpLogsOnFailure {
				By("Get node problem detector log")
				log, err := framework.GetPodLogs(c, ns, name, name)
				Expect(err).ShouldNot(HaveOccurred())
				framework.Logf("Node Problem Detector logs:\n %s", log)
			}
			By("Delete the node problem detector")
			c.Core().Pods(ns).Delete(name, v1.NewDeleteOptions(0))
			By("Wait for the node problem detector to disappear")
			Expect(framework.WaitForPodToDisappear(c, ns, name, labels.Everything(), pollInterval, pollTimeout)).To(Succeed())
			By("Delete the config map")
			c.Core().ConfigMaps(ns).Delete(configName, nil)
			By("Clean up the events")
			Expect(c.Core().Events(eventNamespace).DeleteCollection(v1.NewDeleteOptions(0), eventListOptions)).To(Succeed())
			By("Clean up the node condition")
			patch := []byte(fmt.Sprintf(`{"status":{"conditions":[{"$patch":"delete","type":"%s"}]}}`, condition))
			c.Core().RESTClient().Patch(types.StrategicMergePatchType).Resource("nodes").Name(node.Name).SubResource("status").Body(patch).Do()
			By("Clean up the temporary directory")