Golang Client.Services方法代码示例

func watchOnce(etcdClient *etcd.Client, kubeClient *kclient.Client) {
	// Start the goroutine to produce update events.
	updates := make(chan serviceUpdate)
	startWatching(kubeClient.Services(kapi.NamespaceAll), updates)

	// This loop will break if the channel closes, which is how the
	// goroutine signals an error.
	for ev := range updates {
		if *verbose {
			log.Printf("Received update event: %#v", ev)
		}
		switch ev.Op {
		case SetServices, AddService:
			for i := range ev.Services {
				s := &ev.Services[i]
				name := buildNameString(s.Name, s.Namespace, *domain)
				mutateEtcdOrDie(func() error { return addDNS(name, s, etcdClient) })
			}
		case RemoveService:
			for i := range ev.Services {
				s := &ev.Services[i]
				name := buildNameString(s.Name, s.Namespace, *domain)
				mutateEtcdOrDie(func() error { return removeDNS(name, etcdClient) })
			}
		}
	}
	//TODO: fully resync periodically.
}

// Describer returns the default describe functions for each of the standard
// Kubernetes types.
func DescriberFor(kind string, c *client.Client) (Describer, bool) {
	switch kind {
	case "Pod":
		return &PodDescriber{
			PodClient: func(namespace string) (client.PodInterface, error) {
				return c.Pods(namespace), nil
			},
			ReplicationControllerClient: func(namespace string) (client.ReplicationControllerInterface, error) {
				return c.ReplicationControllers(namespace), nil
			},
		}, true
	case "ReplicationController":
		return &ReplicationControllerDescriber{
			PodClient: func(namespace string) (client.PodInterface, error) {
				return c.Pods(namespace), nil
			},
			ReplicationControllerClient: func(namespace string) (client.ReplicationControllerInterface, error) {
				return c.ReplicationControllers(namespace), nil
			},
		}, true
	case "Service":
		return &ServiceDescriber{
			ServiceClient: func(namespace string) (client.ServiceInterface, error) {
				return c.Services(namespace), nil
			},
		}, true
	}
	return nil, false
}

// Creates a replication controller that serves its hostname and a service on top of it.
func startServeHostnameService(c *client.Client, ns, name string, port, replicas int) ([]string, string, error) {
	podNames := make([]string, replicas)

	_, err := c.Services(ns).Create(&api.Service{
		ObjectMeta: api.ObjectMeta{
			Name: name,
		},
		Spec: api.ServiceSpec{
			Ports: []api.ServicePort{{
				Port:       port,
				TargetPort: util.NewIntOrStringFromInt(9376),
				Protocol:   "TCP",
			}},
			Selector: map[string]string{
				"name": name,
			},
		},
	})
	if err != nil {
		return podNames, "", err
	}

	var createdPods []*api.Pod
	maxContainerFailures := 0
	config := RCConfig{
		Client:               c,
		Image:                "gcr.io/google_containers/serve_hostname:1.1",
		Name:                 name,
		Namespace:            ns,
		PollInterval:         3 * time.Second,
		Timeout:              30 * time.Second,
		Replicas:             replicas,
		CreatedPods:          &createdPods,
		MaxContainerFailures: &maxContainerFailures,
	}
	err = RunRC(config)
	if err != nil {
		return podNames, "", err
	}

	if len(createdPods) != replicas {
		return podNames, "", fmt.Errorf("Incorrect number of running pods: %v", len(createdPods))
	}

	for i := range createdPods {
		podNames[i] = createdPods[i].ObjectMeta.Name
	}
	sort.StringSlice(podNames).Sort()

	service, err := c.Services(ns).Get(name)
	if err != nil {
		return podNames, "", err
	}
	if service.Spec.ClusterIP == "" {
		return podNames, "", fmt.Errorf("Service IP is blank for %v", name)
	}
	serviceIP := service.Spec.ClusterIP
	return podNames, serviceIP, nil
}

func stopServeHostnameService(c *client.Client, ns, name string) error {
	if err := DeleteRC(c, ns, name); err != nil {
		return err
	}
	if err := c.Services(ns).Delete(name); 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 expectedServicesExist(c *client.Client) error {
	serviceList, err := c.Services(api.NamespaceDefault).List(labels.Everything())
	if err != nil {
		return err
	}
	for _, service := range serviceList.Items {
		if _, ok := expectedServices[service.Name]; ok {
			expectedServices[service.Name] = true
		}
	}
	for service, found := range expectedServices {
		if !found {
			return fmt.Errorf("Service %q not found", service)
		}
	}
	return nil
}

func waitForPublicIPs(c *client.Client, serviceName, namespace string) (*api.Service, error) {
	const timeout = 4 * time.Minute
	var service *api.Service
	By(fmt.Sprintf("waiting up to %v for service %s in namespace %s to have a public IP", timeout, serviceName, namespace))
	for start := time.Now(); time.Since(start) < timeout; time.Sleep(5 * time.Second) {
		service, err := c.Services(namespace).Get(serviceName)
		if err != nil {
			Logf("Get service failed, ignoring for 5s: %v", err)
			continue
		}
		if len(service.Spec.PublicIPs) > 0 {
			return service, nil
		}
		Logf("Waiting for service %s in namespace %s to have a public IP (%v)", serviceName, namespace, time.Since(start))
	}
	return service, fmt.Errorf("service %s in namespace %s doesn't have a public IP after %.2f seconds", serviceName, namespace, timeout.Seconds())
}

func waitForLoadBalancerDestroy(c *client.Client, serviceName, namespace string) (*api.Service, error) {
	// TODO: once support ticket 21807001 is resolved, reduce this timeout back to something reasonable
	const timeout = 10 * time.Minute
	var service *api.Service
	By(fmt.Sprintf("waiting up to %v for service %s in namespace %s to have no LoadBalancer ingress points", timeout, serviceName, namespace))
	for start := time.Now(); time.Since(start) < timeout; time.Sleep(5 * time.Second) {
		service, err := c.Services(namespace).Get(serviceName)
		if err != nil {
			Logf("Get service failed, ignoring for 5s: %v", err)
			continue
		}
		if len(service.Status.LoadBalancer.Ingress) == 0 {
			return service, nil
		}
		Logf("Waiting for service %s in namespace %s to have no LoadBalancer ingress points (%v)", serviceName, namespace, time.Since(start))
	}
	return service, fmt.Errorf("service %s in namespace %s still has LoadBalancer ingress points after %.2f seconds", serviceName, namespace, timeout.Seconds())
}

// updateService fetches a service, calls the update function on it,
// and then attempts to send the updated service. It retries up to 2
// times in the face of timeouts and conflicts.
func updateService(c *client.Client, namespace, serviceName string, update func(*api.Service)) (*api.Service, error) {
	var service *api.Service
	var err error
	for i := 0; i < 3; i++ {
		service, err = c.Services(namespace).Get(serviceName)
		if err != nil {
			return service, err
		}

		update(service)

		service, err = c.Services(namespace).Update(service)

		if !errors.IsConflict(err) && !errors.IsServerTimeout(err) {
			return service, err
		}
	}
	return service, err
}

// Clean both server and client pods.
func volumeTestCleanup(client *client.Client, config VolumeTestConfig) {
	By(fmt.Sprint("cleaning the environment after ", config.prefix))

	defer GinkgoRecover()

	podClient := client.Pods(config.namespace)
	serviceClient := client.Services(config.namespace)

	// ignore all errors, the pods may not be even created
	podClient.Delete(config.prefix+"-client", nil)
	serviceClient.Delete(config.prefix + "-server")
	podClient.Delete(config.prefix+"-server", nil)
}

		waitForServiceInAddonTest(c, namespace.Name, "addon-test", false)
		waitForReplicationControllerInAddonTest(c, defaultNsName, "addon-test-v1", false)

		By("remove manifests")
		sshExecAndVerify(sshClient, fmt.Sprintf("sudo rm %s/%s", destinationDir, rcv2))
		sshExecAndVerify(sshClient, fmt.Sprintf("sudo rm %s/%s", destinationDir, svcv2))

		waitForServiceInAddonTest(c, namespace.Name, "addon-test-updated", false)
		waitForReplicationControllerInAddonTest(c, namespace.Name, "addon-test-v2", false)

		By("verify invalid API addons weren't created")
		_, err = c.ReplicationControllers(namespace.Name).Get("invalid-addon-test-v1")
		Expect(err).To(HaveOccurred())
		_, err = c.ReplicationControllers(defaultNsName).Get("invalid-addon-test-v1")
		Expect(err).To(HaveOccurred())
		_, err = c.Services(namespace.Name).Get("ivalid-addon-test")
		Expect(err).To(HaveOccurred())
		_, err = c.Services(defaultNsName).Get("ivalid-addon-test")
		Expect(err).To(HaveOccurred())

		// invalid addons will be deleted by the deferred function
	})
})

func waitForServiceInAddonTest(c *client.Client, addonNamespace, name string, exist bool) {
	expectNoError(waitForService(c, addonNamespace, name, exist, addonTestPollInterval, addonTestPollTimeout))
}

func waitForReplicationControllerInAddonTest(c *client.Client, addonNamespace, name string, exist bool) {
	expectNoError(waitForReplicationController(c, addonNamespace, name, exist, addonTestPollInterval, addonTestPollTimeout))
}

			}
		}
		Expect(foundRW).To(Equal(true))
		Expect(foundRO).To(Equal(true))
	})

	It("should serve a basic endpoint from pods", func(done Done) {
		serviceName := "endpoint-test2"
		ns := api.NamespaceDefault
		labels := map[string]string{
			"foo": "bar",
			"baz": "blah",
		}

		defer func() {
			err := c.Services(ns).Delete(serviceName)
			Expect(err).NotTo(HaveOccurred())
		}()

		service := &api.Service{
			ObjectMeta: api.ObjectMeta{
				Name: serviceName,
			},
			Spec: api.ServiceSpec{
				Selector: labels,
				Ports: []api.ServicePort{{
					Port:       80,
					TargetPort: util.NewIntOrStringFromInt(80),
				}},
			},
		}

func newSVCByName(c *client.Client, ns, name string) error {
	_, err := c.Services(ns).Create(svcByName(name))
	return err
}

				Name: svcName,
				Labels: map[string]string{
					"name": svcName,
				},
			},
			Spec: api.ServiceSpec{
				Ports: []api.ServicePort{{
					Port:       8765,
					TargetPort: util.NewIntOrStringFromInt(8080),
				}},
				Selector: map[string]string{
					"name": serverName,
				},
			},
		}
		defer c.Services(api.NamespaceDefault).Delete(svc.Name)
		_, err = c.Services(api.NamespaceDefault).Create(svc)
		if err != nil {
			Fail(fmt.Sprintf("Failed to create service: %v", err))
		}

		// Make a client pod that verifies that it has the service environment variables.
		podName := "client-envvars-" + string(util.NewUUID())
		pod := &api.Pod{
			ObjectMeta: api.ObjectMeta{
				Name:   podName,
				Labels: map[string]string{"name": podName},
			},
			Spec: api.PodSpec{
				Containers: []api.Container{
					{

					if len(ipToPort) != 1 {
						Logf("No IP found, retrying")
						continue
					}
					for _, port := range ipToPort {
						if port[0] != redisPort {
							Failf("Wrong endpoint port: %d", port[0])
						}
					}
					endpointFound = true
					break
				}
				if !endpointFound {
					Failf("1 endpoint is expected")
				}
				service, err := c.Services(ns).Get(name)
				Expect(err).NotTo(HaveOccurred())

				if len(service.Spec.Ports) != 1 {
					Failf("1 port is expected")
				}
				port := service.Spec.Ports[0]
				if port.Port != servicePort {
					Failf("Wrong service port: %d", port.Port)
				}
				if port.TargetPort.IntVal != redisPort {
					Failf("Wrong target port: %d")
				}
			}

			By("exposing RC")