Golang Client.Endpoints方法代碼示例

func testOne(t *testing.T, client *kclient.Client, namespace, addrType string, success bool) *kapi.Endpoints {
	testEndpoint := &kapi.Endpoints{}
	testEndpoint.GenerateName = "test"
	testEndpoint.Subsets = []kapi.EndpointSubset{
		{
			Addresses: []kapi.EndpointAddress{
				{
					IP: exampleAddresses[addrType],
				},
			},
			Ports: []kapi.EndpointPort{
				{
					Port:     9999,
					Protocol: kapi.ProtocolTCP,
				},
			},
		},
	}

	ep, err := client.Endpoints(namespace).Create(testEndpoint)
	if err != nil && success {
		t.Fatalf("unexpected error creating %s network endpoint: %v", addrType, err)
	} else if err == nil && !success {
		t.Fatalf("unexpected success creating %s network endpoint", addrType)
	}
	return ep
}

func createEndpoint(client *kubeclient.Client, meta kube.ObjectMeta, dnsIP string, dnsPort int32) error {
	endpoints := &kube.Endpoints{
		ObjectMeta: meta,
		Subsets: []kube.EndpointSubset{
			{
				Addresses: []kube.EndpointAddress{
					{IP: dnsIP},
				},
				Ports: []kube.EndpointPort{
					{
						Name: "dns",
						Port: dnsPort,
					},
					{
						Name: "dns-tcp",
						Port: dnsPort,
					},
				},
			},
		},
	}

	_, err := client.Endpoints(meta.Namespace).Create(endpoints)
	if err != nil {
		return err
	}
	return nil
}

func runMasterServiceTest(client *client.Client) {
	time.Sleep(12 * time.Second)
	svcList, err := client.Services(api.NamespaceDefault).List(labels.Everything())
	if err != nil {
		glog.Fatalf("unexpected error listing services: %v", err)
	}
	var foundRW bool
	found := util.StringSet{}
	for i := range svcList.Items {
		found.Insert(svcList.Items[i].Name)
		if svcList.Items[i].Name == "kubernetes" {
			foundRW = true
		}
	}
	if foundRW {
		ep, err := client.Endpoints(api.NamespaceDefault).Get("kubernetes")
		if err != nil {
			glog.Fatalf("unexpected error listing endpoints for kubernetes service: %v", err)
		}
		if countEndpoints(ep) == 0 {
			glog.Fatalf("no endpoints for kubernetes service: %v", ep)
		}
	} else {
		glog.Errorf("no RW service found: %v", found)
		glog.Fatal("Kubernetes service test failed")
	}
	glog.Infof("Master service test passed.")
}

func endpointsSet(c *client.Client, serviceNamespace, serviceID string, endpointCount int) wait.ConditionFunc {
	return func() (bool, error) {
		endpoints, err := c.Endpoints(serviceNamespace).Get(serviceID)
		if err != nil {
			glog.Infof("Error getting endpoints: %v", err)
			return false, nil
		}
		count := 0
		for _, ss := range endpoints.Subsets {
			for _, addr := range ss.Addresses {
				for _, port := range ss.Ports {
					count++
					glog.Infof("%s/%s endpoint: %s:%d %#v", serviceNamespace, serviceID, addr.IP, port.Port, addr.TargetRef)
				}
			}
		}
		return count == endpointCount, nil
	}
}

// CheckService waits for the specified service to be ready by returning an error until the service is up
// The check is done by polling the endpoint associated with the service and when the endpoint exists, returning no error->service-online
// Credits: https://github.com/kubernetes/minikube/blob/v0.9.0/cmd/minikube/cmd/service.go#L89
func CheckService(ns string, service string, c *k8sclient.Client) error {
	svc, err := c.Services(ns).Get(service)
	if err != nil {
		return err
	}
	url := svc.ObjectMeta.Annotations[exposeURLAnnotation]
	if url == "" {
		util.Info(".")
		return errors.New("")
	}
	endpoints := c.Endpoints(ns)
	if endpoints == nil {
		util.Errorf("No endpoints found in namespace %s\n", ns)
	}
	endpoint, err := endpoints.Get(service)
	if err != nil {
		util.Errorf("No endpoints found for service %s\n", service)
		return err
	}
	return CheckEndpointReady(endpoint)
}

func copyEndpoints(c *k8sclient.Client, fromNs string, toNs string, names []string) error {
	var answer error
	for _, name := range names {
		item, err := c.Endpoints(fromNs).Get(name)
		if err != nil {
			util.Warnf("No endpoint called %s found in namespace %s", name, fromNs)
			answer = err
		}
		name := item.Name
		objectMeta := item.ObjectMeta

		current, err := c.Endpoints(toNs).Get(name)
		if current == nil || err != nil {
			// lets create the endpoint
			newEndpoints := &api.Endpoints{
				ObjectMeta: api.ObjectMeta{
					Name:        name,
					Labels:      objectMeta.Labels,
					Annotations: objectMeta.Annotations,
				},
				Subsets: item.Subsets,
			}
			_, err = c.Endpoints(toNs).Create(newEndpoints)
			if err != nil {
				return err
			}
			util.Infof("Created endpoint %s in namespace %s\n", name, toNs)
		}
	}
	return answer
}

func getMaster(c *client.Client) string {
	master := ""
	switch framework.TestContext.Provider {
	case "gce":
		eps, err := c.Endpoints(api.NamespaceDefault).Get("kubernetes")
		if err != nil {
			framework.Failf("Fail to get kubernetes endpoinds: %v", err)
		}
		if len(eps.Subsets) != 1 || len(eps.Subsets[0].Addresses) != 1 {
			framework.Failf("There are more than 1 endpoints for kubernetes service: %+v", eps)
		}
		master = eps.Subsets[0].Addresses[0].IP
	case "gke":
		master = strings.TrimPrefix(framework.TestContext.Host, "https://")
	case "aws":
		// TODO(justinsb): Avoid hardcoding this.
		master = "172.20.0.9"
	default:
		framework.Failf("This test is not supported for provider %s and should be disabled", framework.TestContext.Provider)
	}
	return master
}

func validateEndpointsOrFail(c *client.Client, namespace, serviceName string, expectedEndpoints PortsByPodName) {
	By(fmt.Sprintf("waiting up to %v for service %s in namespace %s to expose endpoints %v", serviceStartTimeout, serviceName, namespace, expectedEndpoints))
	i := 1
	for start := time.Now(); time.Since(start) < serviceStartTimeout; time.Sleep(1 * time.Second) {
		endpoints, err := c.Endpoints(namespace).Get(serviceName)
		if err != nil {
			Logf("Get endpoints failed (%v elapsed, ignoring for 5s): %v", time.Since(start), err)
			continue
		}
		// Logf("Found endpoints %v", endpoints)

		portsByPodUID := getContainerPortsByPodUID(endpoints)
		// Logf("Found port by pod UID %v", portsByPodUID)

		expectedPortsByPodUID := translatePodNameToUIDOrFail(c, namespace, expectedEndpoints)
		if len(portsByPodUID) == len(expectedEndpoints) {
			validatePortsOrFail(portsByPodUID, expectedPortsByPodUID)
			Logf("successfully validated that service %s in namespace %s exposes endpoints %v (%v elapsed)",
				serviceName, namespace, expectedEndpoints, time.Since(start))
			return
		}

		if i%5 == 0 {
			Logf("Unexpected endpoints: found %v, expected %v (%v elapsed, will retry)", portsByPodUID, expectedEndpoints, time.Since(start))
		}
		i++
	}

	if pods, err := c.Pods(api.NamespaceAll).List(labels.Everything(), fields.Everything()); err == nil {
		for _, pod := range pods.Items {
			Logf("Pod %s\t%s\t%s\t%s", pod.Namespace, pod.Name, pod.Spec.NodeName, pod.DeletionTimestamp)
		}
	} else {
		Logf("Can't list pod debug info: %v", err)
	}
	Failf("Timed out waiting for service %s in namespace %s to expose endpoints %v (%v elapsed)", serviceName, namespace, expectedEndpoints, serviceStartTimeout)
}

//getWebserverEndpoints returns the webserver endpoints as a set of String, each in the format like "http://{ip}:{port}"
func getWebserverEndpoints(client *client.Client) sets.String {
	endpoints, err := client.Endpoints(*namespace).Get(*service)
	eps := sets.String{}
	if err != nil {
		state.Logf("Unable to read the endpoints for %v/%v: %v.", *namespace, *service, err)
		return eps
	}
	for _, ss := range endpoints.Subsets {
		for _, a := range ss.Addresses {
			for _, p := range ss.Ports {
				eps.Insert(fmt.Sprintf("http://%s:%d", a.IP, p.Port))
			}
		}
	}
	return eps
}

			mkpath := func(file string) string {
				return filepath.Join(testContext.RepoRoot, "examples/guestbook-go", file)
			}
			controllerJson := mkpath("redis-master-controller.json")
			nsFlag := fmt.Sprintf("--namespace=%v", ns)

			redisPort := 6379

			By("creating Redis RC")
			runKubectl("create", "-f", controllerJson, nsFlag)
			forEachPod(c, ns, "app", "redis", func(pod api.Pod) {
				lookForStringInLog(ns, pod.Name, "redis-master", "The server is now ready to accept connections", podStartTimeout)
			})
			validateService := func(name string, servicePort int, timeout time.Duration) {
				err := wait.Poll(poll, timeout, func() (bool, error) {
					endpoints, err := c.Endpoints(ns).Get(name)
					if err != nil {
						if apierrs.IsNotFound(err) {
							err = nil
						}
						Logf("Get endpoints failed (interval %v): %v", poll, err)
						return false, err
					}

					uidToPort := getContainerPortsByPodUID(endpoints)
					if len(uidToPort) == 0 {
						Logf("No endpoint found, retrying")
						return false, nil
					}
					if len(uidToPort) > 1 {
						Fail("Too many endpoints found")

							{
								IP: serverIP,
							},
						},
						Ports: []api.EndpointPort{
							{
								Name:     "gluster",
								Port:     24007,
								Protocol: api.ProtocolTCP,
							},
						},
					},
				},
			}

			endClient := c.Endpoints(config.namespace)

			defer func() {
				if clean {
					endClient.Delete(config.prefix + "-server")
				}
			}()

			if _, err := endClient.Create(&endpoints); err != nil {
				framework.Failf("Failed to create endpoints for Gluster server: %v", err)
			}

			volume := api.VolumeSource{
				Glusterfs: &api.GlusterfsVolumeSource{
					EndpointsName: config.prefix + "-server",
					// 'test_vol' comes from test/images/volumes-tester/gluster/run_gluster.sh

func endpointsWatchFunc(c *client.Client, ns string) func(options api.ListOptions) (watch.Interface, error) {
	return func(options api.ListOptions) (watch.Interface, error) {
		return c.Endpoints(ns).Watch(options)
	}
}

func endpointsListFunc(c *client.Client, ns string) func(api.ListOptions) (runtime.Object, error) {
	return func(opts api.ListOptions) (runtime.Object, error) {
		return c.Endpoints(ns).List(opts)
	}
}

//.........這裏部分代碼省略.........
		}
		if len(svc.Labels) != 2 || svc.Labels["foo"] != "bar" || svc.Labels["baz"] != "qux" {
			glog.Fatalf("Failed updating patchservice with patch type %s: labels are: %v", k, svc.Labels)
		}

		// remove one label
		err = execPatch(k, v.RemoveLabelBody)
		if err != nil {
			glog.Fatalf("Failed updating patchservice with patch type %s: %v", k, err)
		}
		svc, err = services.Get(name)
		if err != nil {
			glog.Fatalf("Failed getting patchservice: %v", err)
		}
		if len(svc.Labels) != 1 || svc.Labels["baz"] != "qux" {
			glog.Fatalf("Failed updating patchservice with patch type %s: labels are: %v", k, svc.Labels)
		}

		// remove all labels
		err = execPatch(k, v.RemoveAllLabelsBody)
		if err != nil {
			glog.Fatalf("Failed updating patchservice with patch type %s: %v", k, err)
		}
		svc, err = services.Get(name)
		if err != nil {
			glog.Fatalf("Failed getting patchservice: %v", err)
		}
		if svc.Labels != nil {
			glog.Fatalf("Failed remove all labels from patchservice with patch type %s: %v", k, svc.Labels)
		}
	}

	// Test patch with a resource that allows create on update
	endpointTemplate := &api.Endpoints{
		ObjectMeta: api.ObjectMeta{Name: "patchendpoint"},
		Subsets: []api.EndpointSubset{
			{
				Addresses: []api.EndpointAddress{{IP: "1.2.3.4"}},
				Ports:     []api.EndpointPort{{Port: 80, Protocol: api.ProtocolTCP}},
			},
		},
	}

	patchEndpoint := func(json []byte) (runtime.Object, error) {
		return c.Patch(api.MergePatchType).Resource("endpoints").Namespace(api.NamespaceDefault).Name("patchendpoint").Body(json).Do().Get()
	}

	// Make sure patch doesn't get to CreateOnUpdate
	{
		endpointJSON, err := runtime.Encode(api.Codecs.LegacyCodec(v1.SchemeGroupVersion), endpointTemplate)
		if err != nil {
			glog.Fatalf("Failed creating endpoint JSON: %v", err)
		}
		if obj, err := patchEndpoint(endpointJSON); !apierrors.IsNotFound(err) {
			glog.Fatalf("Expected notfound creating from patch, got error=%v and object: %#v", err, obj)
		}
	}

	// Create the endpoint (endpoints set AllowCreateOnUpdate=true) to get a UID and resource version
	createdEndpoint, err := c.Endpoints(api.NamespaceDefault).Update(endpointTemplate)
	if err != nil {
		glog.Fatalf("Failed creating endpoint: %v", err)
	}

	// Make sure identity patch is accepted
	{