Golang utils.WaitForPodsWithLabelRunning函数代码示例

// CreateServiceForSimpleAppWithPods is a convenience wrapper to create a service and its matching pods all at once.
func (f *Framework) CreateServiceForSimpleAppWithPods(contPort int, svcPort int, appName string, podSpec func(n api.Node) api.PodSpec, count int, block bool) (error, *api.Service) {
	var err error = nil
	theService := f.CreateServiceForSimpleApp(contPort, svcPort, appName)
	f.CreatePodsPerNodeForSimpleApp(appName, podSpec, count)
	if block {
		err = testutils.WaitForPodsWithLabelRunning(f.ClientSet, f.Namespace.Name, labels.SelectorFromSet(labels.Set(theService.Spec.Selector)))
	}
	return err, theService
}

func (cont *NginxIngressController) init() {
	mkpath := func(file string) string {
		return filepath.Join(framework.TestContext.RepoRoot, ingressManifestPath, "nginx", file)
	}
	framework.Logf("initializing nginx ingress controller")
	framework.RunKubectlOrDie("create", "-f", mkpath("rc.yaml"), fmt.Sprintf("--namespace=%v", cont.ns))

	rc, err := cont.c.Core().ReplicationControllers(cont.ns).Get("nginx-ingress-controller", metav1.GetOptions{})
	framework.ExpectNoError(err)
	cont.rc = rc

	framework.Logf("waiting for pods with label %v", rc.Spec.Selector)
	sel := labels.SelectorFromSet(labels.Set(rc.Spec.Selector))
	framework.ExpectNoError(testutils.WaitForPodsWithLabelRunning(cont.c, cont.ns, sel))
	pods, err := cont.c.Core().Pods(cont.ns).List(v1.ListOptions{LabelSelector: sel.String()})
	framework.ExpectNoError(err)
	if len(pods.Items) == 0 {
		framework.Failf("Failed to find nginx ingress controller pods with selector %v", sel)
	}
	cont.pod = &pods.Items[0]
	cont.externalIP, err = framework.GetHostExternalAddress(cont.c, cont.pod)
	framework.ExpectNoError(err)
	framework.Logf("ingress controller running in pod %v on ip %v", cont.pod.Name, cont.externalIP)
}

			By("starting redis bootstrap")
			framework.RunKubectlOrDie("create", "-f", bootstrapYaml, nsFlag)
			err := framework.WaitForPodNameRunningInNamespace(c, bootstrapPodName, ns)
			Expect(err).NotTo(HaveOccurred())

			_, err = framework.LookForStringInLog(ns, bootstrapPodName, "master", expectedOnServer, serverStartTimeout)
			Expect(err).NotTo(HaveOccurred())
			_, err = framework.LookForStringInLog(ns, bootstrapPodName, "sentinel", expectedOnSentinel, serverStartTimeout)
			Expect(err).NotTo(HaveOccurred())

			By("setting up services and controllers")
			framework.RunKubectlOrDie("create", "-f", sentinelServiceYaml, nsFlag)
			framework.RunKubectlOrDie("create", "-f", sentinelControllerYaml, nsFlag)
			framework.RunKubectlOrDie("create", "-f", controllerYaml, nsFlag)
			label := labels.SelectorFromSet(labels.Set(map[string]string{sentinelRC: "true"}))
			err = testutils.WaitForPodsWithLabelRunning(c, ns, label)
			Expect(err).NotTo(HaveOccurred())
			label = labels.SelectorFromSet(labels.Set(map[string]string{"name": redisRC}))
			err = testutils.WaitForPodsWithLabelRunning(c, ns, label)
			Expect(err).NotTo(HaveOccurred())

			By("scaling up the deployment")
			framework.RunKubectlOrDie("scale", "rc", redisRC, "--replicas=3", nsFlag)
			framework.RunKubectlOrDie("scale", "rc", sentinelRC, "--replicas=3", nsFlag)
			framework.WaitForRCToStabilize(c, ns, redisRC, framework.PodReadyBeforeTimeout)
			framework.WaitForRCToStabilize(c, ns, sentinelRC, framework.PodReadyBeforeTimeout)

			By("checking up the services")
			checkAllLogs := func() {
				selectorKey, selectorValue := "name", redisRC
				label := labels.SelectorFromSet(labels.Set(map[string]string{selectorKey: selectorValue}))

		uiAppName     = uiServiceName
		uiNamespace   = api.NamespaceSystem

		serverStartTimeout = 1 * time.Minute
	)

	f := framework.NewDefaultFramework(uiServiceName)

	It("should check that the kubernetes-dashboard instance is alive", func() {
		By("Checking whether the kubernetes-dashboard service exists.")
		err := framework.WaitForService(f.Client, uiNamespace, uiServiceName, true, framework.Poll, framework.ServiceStartTimeout)
		Expect(err).NotTo(HaveOccurred())

		By("Checking to make sure the kubernetes-dashboard pods are running")
		selector := labels.SelectorFromSet(labels.Set(map[string]string{"k8s-app": uiAppName}))
		err = testutils.WaitForPodsWithLabelRunning(f.Client, uiNamespace, selector)
		Expect(err).NotTo(HaveOccurred())

		By("Checking to make sure we get a response from the kubernetes-dashboard.")
		err = wait.Poll(framework.Poll, serverStartTimeout, func() (bool, error) {
			var status int
			proxyRequest, errProxy := framework.GetServicesProxyRequest(f.Client, f.Client.Get())
			if errProxy != nil {
				framework.Logf("Get services proxy request failed: %v", errProxy)
			}
			// Query against the proxy URL for the kube-ui service.
			err := proxyRequest.Namespace(uiNamespace).
				Name(uiServiceName).
				Timeout(framework.SingleCallTimeout).
				Do().
				StatusCode(&status).