Golang version.Get函数代码示例

func TestVersion(t *testing.T) {
	handler := New(map[string]RESTStorage{}, codec, "/prefix/version")
	server := httptest.NewServer(handler)
	client := http.Client{}

	request, err := http.NewRequest("GET", server.URL+"/version", nil)
	if err != nil {
		t.Errorf("unexpected error: %v", err)
	}

	response, err := client.Do(request)
	if err != nil {
		t.Errorf("unexpected error: %v", err)
	}

	var info version.Info
	err = json.NewDecoder(response.Body).Decode(&info)
	if err != nil {
		t.Errorf("unexpected error: %v", err)
	}

	if !reflect.DeepEqual(version.Get(), info) {
		t.Errorf("Expected %#v, Got %#v", version.Get(), info)
	}
}

// PrintAndExitIfRequested will check if the -version flag was passed
// and, if so, print the version and exit.
func PrintAndExitIfRequested() {
	if *versionFlag == VersionRaw {
		fmt.Printf("%#v\n", version.Get())
		os.Exit(0)
	} else if *versionFlag == VersionTrue {
		fmt.Printf("Kubernetes %s\n", version.Get())
		os.Exit(0)
	}
}

// DefaultKubernetesUserAgent returns the default user agent that clients can use.
func DefaultKubernetesUserAgent() string {
	commit := version.Get().GitCommit
	if len(commit) > 7 {
		commit = commit[:7]
	}
	if len(commit) == 0 {
		commit = "unknown"
	}
	version := version.Get().GitVersion
	seg := strings.SplitN(version, "-", 2)
	version = seg[0]
	return fmt.Sprintf("%s/%s (%s/%s) kubernetes/%s", path.Base(os.Args[0]), version, gruntime.GOOS, gruntime.GOARCH, commit)
}

func main() {
	openshiftCmd := &cobra.Command{
		Use:   "openshift",
		Short: "OpenShift helps you build, deploy, and manage your applications",
		Long:  longDescription,
		Run: func(c *cobra.Command, args []string) {
			c.Help()
		},
	}

	openshiftCmd.AddCommand(master.NewCommandStartAllInOne("start"))
	openshiftCmd.AddCommand(client.NewCommandKubecfg("kube"))
	openshiftCmd.AddCommand(tour.NewCommandTour("tour"))

	// version information
	versionCmd := &cobra.Command{
		Use:   "version",
		Short: "Display version",
		Run: func(c *cobra.Command, args []string) {
			fmt.Printf("openshift %v\n", version.Get())
			fmt.Printf("kubernetes %v\n", kubeversion.Get())
		},
	}
	openshiftCmd.AddCommand(versionCmd)

	if err := openshiftCmd.Execute(); err != nil {
		fmt.Fprintf(os.Stderr, "Error: %s", err)
		os.Exit(1)
	}
}

func (c *Fake) ServerVersion() (*version.Info, error) {
	c.Lock.Lock()
	defer c.Lock.Unlock()

	c.Actions = append(c.Actions, FakeAction{Action: "get-version", Value: nil})
	versionInfo := version.Get()
	return &versionInfo, nil
}

func (c *Fake) ServerVersion() (*version.Info, error) {
	action := ActionImpl{}
	action.Verb = "get"
	action.Resource = "version"

	c.Invokes(action, nil)
	versionInfo := version.Get()
	return &versionInfo, nil
}

// NewVersionCommand creates a command for displaying the version of this binary
func NewVersionCommand(basename string) *cobra.Command {
	return &cobra.Command{
		Use:   "version",
		Short: "Display version",
		Run: func(c *cobra.Command, args []string) {
			fmt.Printf("%s %v\n", basename, Get())
			fmt.Printf("kubernetes %v\n", kubeversion.Get())
		},
	}
}

func MatchesServerVersion(c *Config) error {
	client, err := New(c)
	if err != nil {
		return err
	}

	clientVersion := version.Get()
	serverVersion, err := client.ServerVersion()
	if err != nil {
		return fmt.Errorf("couldn't read version from server: %v\n", err)
	}
	if s := *serverVersion; !reflect.DeepEqual(clientVersion, s) {
		return fmt.Errorf("server version (%#v) differs from client version (%#v)!\n", s, clientVersion)
	}

	return nil
}

func GetKubeClient(config *client.Config, matchVersion bool) (*client.Client, error) {
	// TODO: get the namespace context when kubectl ns is completed
	c, err := client.New(config)
	if err != nil {
		return nil, err
	}

	if matchVersion {
		clientVersion := version.Get()
		serverVersion, err := c.ServerVersion()
		if err != nil {
			return nil, fmt.Errorf("couldn't read version from server: %v\n", err)
		}
		if s := *serverVersion; !reflect.DeepEqual(clientVersion, s) {
			return nil, fmt.Errorf("server version (%#v) differs from client version (%#v)!\n", s, clientVersion)
		}
	}

	return c, nil
}

func (c *KubeConfig) Run() {
	util.InitLogs()
	defer util.FlushLogs()

	var masterServer string
	if len(c.HttpServer) > 0 {
		masterServer = c.HttpServer
	} else if len(os.Getenv("KUBERNETES_MASTER")) > 0 {
		masterServer = os.Getenv("KUBERNETES_MASTER")
	} else {
		masterServer = "http://localhost:8080"
	}
	kubeClient, err := kubeclient.New(masterServer, nil)
	if err != nil {
		glog.Fatalf("Unable to parse %s as a URL: %v", masterServer, err)
	}
	client, err := osclient.New(masterServer, nil)
	if err != nil {
		glog.Fatalf("Unable to parse %s as a URL: %v", masterServer, err)
	}

	// TODO: this won't work if TLS is enabled with client cert auth, but no
	// passwords are required. Refactor when we address client auth abstraction.
	if kubeClient.Secure() {
		auth, err := kubecfg.LoadAuthInfo(c.AuthConfig, os.Stdin)
		if err != nil {
			glog.Fatalf("Error loading auth: %v", err)
		}
		kubeClient, err = kubeclient.New(masterServer, auth)
		if err != nil {
			glog.Fatalf("Unable to parse %s as a URL: %v", masterServer, err)
		}
		client, err = osclient.New(masterServer, auth)
		if err != nil {
			glog.Fatalf("Unable to parse %s as a URL: %v", masterServer, err)
		}
	}

	// check the kubernetes server version
	if c.ServerVersion {
		got, err := kubeClient.ServerVersion()
		if err != nil {
			fmt.Printf("Couldn't read version from server: %v\n", err)
			os.Exit(1)
		}
		fmt.Printf("Server Version: %#v\n", got)
		os.Exit(0)
	}
	if c.PreventSkew {
		got, err := kubeClient.ServerVersion()
		if err != nil {
			fmt.Printf("Couldn't read version from server: %v\n", err)
			os.Exit(1)
		}
		if c, s := version.Get(), *got; !reflect.DeepEqual(c, s) {
			fmt.Printf("Server version (%#v) differs from client version (%#v)!\n", s, c)
			os.Exit(1)
		}
	}

	if c.Proxy {
		glog.Info("Starting to serve on localhost:8001")
		server := kubecfg.NewProxyServer(c.WWW, kubeClient)
		glog.Fatal(server.Serve())
	}

	method := c.Arg(0)
	clients := map[string]RESTClient{
		"minions":                 kubeClient.RESTClient,
		"pods":                    kubeClient.RESTClient,
		"services":                kubeClient.RESTClient,
		"replicationControllers":  kubeClient.RESTClient,
		"builds":                  client.RESTClient,
		"buildConfigs":            client.RESTClient,
		"images":                  client.RESTClient,
		"imageRepositories":       client.RESTClient,
		"imageRepositoryMappings": client.RESTClient,
	}

	matchFound := c.executeAPIRequest(method, clients) || c.executeControllerRequest(method, kubeClient)
	if matchFound == false {
		glog.Fatalf("Unknown command %s", method)
	}
}

// PrintAndExitIfRequested will check if the -version flag was passed
// and, if so, print the version and exit.
func PrintAndExitIfRequested() {
	if *versionFlag {
		fmt.Printf("Kubernetes %s\n", version.Get())
		os.Exit(0)
	}
}

func main() {
	flag.Usage = func() {
		usage()
	}

	flag.Parse()
	util.InitLogs()
	defer util.FlushLogs()

	verflag.PrintAndExitIfRequested()

	secure := true
	var masterServer string
	if len(*httpServer) > 0 {
		masterServer = *httpServer
	} else if len(os.Getenv("KUBERNETES_MASTER")) > 0 {
		masterServer = os.Getenv("KUBERNETES_MASTER")
	} else {
		masterServer = "http://localhost:8080"
	}
	parsedURL, err := url.Parse(masterServer)
	if err != nil {
		glog.Fatalf("Unable to parse %v as a URL\n", err)
	}
	if parsedURL.Scheme != "" && parsedURL.Scheme != "https" {
		secure = false
	}

	var auth *kube_client.AuthInfo
	if secure {
		auth, err = kubecfg.LoadAuthInfo(*authConfig, os.Stdin)
		if err != nil {
			glog.Fatalf("Error loading auth: %v", err)
		}
	}

	client := kube_client.New(masterServer, auth)

	if *serverVersion {
		got, err := client.ServerVersion()
		if err != nil {
			fmt.Printf("Couldn't read version from server: %v\n", err)
			os.Exit(1)
		}
		fmt.Printf("Server Version: %#v\n", got)
		os.Exit(0)
	}

	if *preventSkew {
		got, err := client.ServerVersion()
		if err != nil {
			fmt.Printf("Couldn't read version from server: %v\n", err)
			os.Exit(1)
		}
		if c, s := version.Get(), *got; !reflect.DeepEqual(c, s) {
			fmt.Printf("Server version (%#v) differs from client version (%#v)!\n", s, c)
			os.Exit(1)
		}
	}

	if *proxy {
		glog.Info("Starting to serve on localhost:8001")
		server := kubecfg.NewProxyServer(*www, masterServer, auth)
		glog.Fatal(server.Serve())
	}

	if len(flag.Args()) < 1 {
		usage()
		os.Exit(1)
	}
	method := flag.Arg(0)

	matchFound := executeAPIRequest(method, client) || executeControllerRequest(method, client)
	if matchFound == false {
		glog.Fatalf("Unknown command %s", method)
	}
}

// handleVersionReq writes the server's version information.
func handleVersion(w http.ResponseWriter, req *http.Request) {
	writeRawJSON(http.StatusOK, version.Get(), w)
}

func TestClient(t *testing.T) {
	m := master.New(&master.Config{
		EtcdServers: newEtcdClient().GetCluster(),
	})

	storage, codec := m.API_v1beta1()
	s := httptest.NewServer(apiserver.Handle(storage, codec, "/api/v1beta1/"))

	client := client.NewOrDie(s.URL, nil)

	info, err := client.ServerVersion()
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if e, a := version.Get(), *info; !reflect.DeepEqual(e, a) {
		t.Errorf("expected %#v, got %#v", e, a)
	}

	pods, err := client.ListPods(labels.Everything())
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if len(pods.Items) != 0 {
		t.Errorf("expected no pods, got %#v", pods)
	}

	// get a validation error
	pod := &api.Pod{
		DesiredState: api.PodState{
			Manifest: api.ContainerManifest{
				Version: "v1beta2",
				Containers: []api.Container{
					{
						Name: "test",
					},
				},
			},
		},
	}
	got, err := client.CreatePod(pod)
	if err == nil {
		t.Fatalf("unexpected non-error: %v", err)
	}

	// get a created pod
	pod.DesiredState.Manifest.Containers[0].Image = "an-image"
	got, err = client.CreatePod(pod)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if got.ID == "" {
		t.Errorf("unexpected empty pod ID %v", got)
	}

	// pod is shown, but not scheduled
	pods, err = client.ListPods(labels.Everything())
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if len(pods.Items) != 1 {
		t.Errorf("expected one pod, got %#v", pods)
	}
	actual := pods.Items[0]
	if actual.ID != got.ID {
		t.Errorf("expected pod %#v, got %#v", got, actual)
	}
	if actual.CurrentState.Host != "" {
		t.Errorf("expected pod to be unscheduled, got %#v", actual)
	}
}

// handleVersion writes the server's version information.
func handleVersion(req *restful.Request, resp *restful.Response) {
	// TODO: use restful's Response methods
	writeRawJSON(http.StatusOK, version.Get(), resp.ResponseWriter)
}