Golang Clientset.Services方法代碼示例

func CreateEssentialAddons(cfg *kubeadmapi.MasterConfiguration, client *clientset.Clientset) error {
	kubeProxyDaemonSet := NewDaemonSet(kubeProxy, createKubeProxyPodSpec(cfg))
	SetMasterTaintTolerations(&kubeProxyDaemonSet.Spec.Template.ObjectMeta)
	SetNodeAffinity(&kubeProxyDaemonSet.Spec.Template.ObjectMeta, NativeArchitectureNodeAffinity())

	if _, err := client.Extensions().DaemonSets(api.NamespaceSystem).Create(kubeProxyDaemonSet); err != nil {
		return fmt.Errorf("failed creating essential kube-proxy addon [%v]", err)
	}

	fmt.Println("[addons] Created essential addon: kube-proxy")

	kubeDNSDeployment := NewDeployment("kube-dns", 1, createKubeDNSPodSpec(cfg))
	SetMasterTaintTolerations(&kubeDNSDeployment.Spec.Template.ObjectMeta)
	SetNodeAffinity(&kubeDNSDeployment.Spec.Template.ObjectMeta, NativeArchitectureNodeAffinity())

	if _, err := client.Extensions().Deployments(api.NamespaceSystem).Create(kubeDNSDeployment); err != nil {
		return fmt.Errorf("failed creating essential kube-dns addon [%v]", err)
	}

	kubeDNSServiceSpec, err := createKubeDNSServiceSpec(cfg)
	if err != nil {
		return fmt.Errorf("failed creating essential kube-dns addon [%v]", err)
	}

	kubeDNSService := NewService("kube-dns", *kubeDNSServiceSpec)
	kubeDNSService.ObjectMeta.Labels["kubernetes.io/name"] = "KubeDNS"
	if _, err := client.Services(api.NamespaceSystem).Create(kubeDNSService); err != nil {
		return fmt.Errorf("failed creating essential kube-dns addon [%v]", err)
	}

	fmt.Println("[addons] Created essential addon: kube-dns")

	return nil
}

func cleanupServiceShard(clientset *kubeclientset.Clientset, clusterName, namespace string, service *v1.Service, timeout time.Duration) error {
	err := wait.PollImmediate(framework.Poll, timeout, func() (bool, error) {
		err := clientset.Services(namespace).Delete(service.Name, &v1.DeleteOptions{})
		if err != nil && !errors.IsNotFound(err) {
			// Deletion failed with an error, try again.
			framework.Logf("Failed to delete service %q in namespace %q, in cluster %q", service.Name, namespace, clusterName)
			return false, nil
		}
		By(fmt.Sprintf("Service %q in namespace %q in cluster %q deleted", service.Name, namespace, clusterName))
		return true, nil
	})
	return err
}

/*
   waitForServiceOrFail waits until a service is either present or absent in the cluster specified by clientset.
   If the condition is not met within timout, it fails the calling test.
*/
func waitForServiceOrFail(clientset *kubeclientset.Clientset, namespace string, service *v1.Service, present bool, timeout time.Duration) {
	By(fmt.Sprintf("Fetching a federated service shard of service %q in namespace %q from cluster", service.Name, namespace))
	var clusterService *v1.Service
	err := wait.PollImmediate(framework.Poll, timeout, func() (bool, error) {
		clusterService, err := clientset.Services(namespace).Get(service.Name)
		if (!present) && errors.IsNotFound(err) { // We want it gone, and it's gone.
			By(fmt.Sprintf("Success: shard of federated service %q in namespace %q in cluster is absent", service.Name, namespace))
			return true, nil // Success
		}
		if present && err == nil { // We want it present, and the Get succeeded, so we're all good.
			By(fmt.Sprintf("Success: shard of federated service %q in namespace %q in cluster is present", service.Name, namespace))
			return true, nil // Success
		}
		By(fmt.Sprintf("Service %q in namespace %q in cluster.  Found: %v, waiting for Found: %v, trying again in %s (err=%v)", service.Name, namespace, clusterService != nil && err == nil, present, framework.Poll, err))
		return false, nil
	})
	framework.ExpectNoError(err, "Failed to verify service %q in namespace %q in cluster: Present=%v", service.Name, namespace, present)

	if present && clusterService != nil {
		Expect(equivalent(*clusterService, *service))
	}
}