Golang latest.GroupOrDie函數代碼示例

func init() {
	kubeTestAPI := os.Getenv("KUBE_TEST_API")
	if kubeTestAPI != "" {
		testGroupVersions := strings.Split(kubeTestAPI, ",")
		for _, groupVersion := range testGroupVersions {
			// TODO: caesarxuchao: the apiutil package is hacky, it will be replaced
			// by a following PR.
			Groups[apiutil.GetGroup(groupVersion)] =
				TestGroup{apiutil.GetGroup(groupVersion), apiutil.GetVersion(groupVersion), groupVersion}
		}
	}

	// TODO: caesarxuchao: we need a central place to store all available API
	// groups and their metadata.
	if _, ok := Groups[""]; !ok {
		// TODO: The second latest.GroupOrDie("").Version will be latest.GroupVersion after we
		// have multiple group support
		Groups[""] = TestGroup{"", latest.GroupOrDie("").Version, latest.GroupOrDie("").GroupVersion}
	}
	if _, ok := Groups["extensions"]; !ok {
		Groups["extensions"] = TestGroup{"extensions", latest.GroupOrDie("extensions").Version, latest.GroupOrDie("extensions").GroupVersion}
	}

	Default = Groups[""]
	Extensions = Groups["extensions"]
}

func (m *Master) thirdpartyapi(group, kind, version string) *apiserver.APIGroupVersion {
	resourceStorage := thirdpartyresourcedataetcd.NewREST(m.thirdPartyStorage, group, kind)

	apiRoot := makeThirdPartyPath("")

	storage := map[string]rest.Storage{
		strings.ToLower(kind) + "s": resourceStorage,
	}

	return &apiserver.APIGroupVersion{
		Root:    apiRoot,
		Version: apiutil.GetGroupVersion(group, version),

		Creater:   thirdpartyresourcedata.NewObjectCreator(group, version, api.Scheme),
		Convertor: api.Scheme,
		Typer:     api.Scheme,

		Mapper:        thirdpartyresourcedata.NewMapper(latest.GroupOrDie("extensions").RESTMapper, kind, version, group),
		Codec:         thirdpartyresourcedata.NewCodec(latest.GroupOrDie("extensions").Codec, kind),
		Linker:        latest.GroupOrDie("extensions").SelfLinker,
		Storage:       storage,
		ServerVersion: latest.GroupOrDie("").GroupVersion,

		Context: m.requestContextMapper,

		MinRequestTimeout: m.minRequestTimeout,
	}
}

// TestExpapi verifies that the unexported exapi creates
// the an experimental unversioned.APIGroupVersion.
func TestExpapi(t *testing.T) {
	master, config, assert := setUp(t)

	expAPIGroup := master.experimental(&config)
	assert.Equal(expAPIGroup.Root, master.apiGroupPrefix)
	assert.Equal(expAPIGroup.Mapper, latest.GroupOrDie("extensions").RESTMapper)
	assert.Equal(expAPIGroup.Codec, latest.GroupOrDie("extensions").Codec)
	assert.Equal(expAPIGroup.Linker, latest.GroupOrDie("extensions").SelfLinker)
	assert.Equal(expAPIGroup.Version, latest.GroupOrDie("extensions").GroupVersion)
}

func TestInterfacesFor(t *testing.T) {
	if _, err := latest.GroupOrDie("extensions").InterfacesFor(""); err == nil {
		t.Fatalf("unexpected non-error: %v", err)
	}
	for i, groupVersion := range append([]string{latest.GroupOrDie("extensions").GroupVersion}, latest.GroupOrDie("extensions").GroupVersions...) {
		if vi, err := latest.GroupOrDie("extensions").InterfacesFor(groupVersion); err != nil || vi == nil {
			t.Fatalf("%d: unexpected result: %v", i, err)
		}
	}
}

func testPodWithVolume(image, path string, source *api.EmptyDirVolumeSource) *api.Pod {
	podName := "pod-" + string(util.NewUUID())
	return &api.Pod{
		TypeMeta: unversioned.TypeMeta{
			Kind:       "Pod",
			APIVersion: latest.GroupOrDie("").Version,
		},
		ObjectMeta: api.ObjectMeta{
			Name: podName,
		},
		Spec: api.PodSpec{
			Containers: []api.Container{
				{
					Name:  containerName,
					Image: image,
					VolumeMounts: []api.VolumeMount{
						{
							Name:      volumeName,
							MountPath: path,
						},
					},
				},
			},
			RestartPolicy: api.RestartPolicyNever,
			Volumes: []api.Volume{
				{
					Name: volumeName,
					VolumeSource: api.VolumeSource{
						EmptyDir: source,
					},
				},
			},
		},
	}
}

// encodePods creates an api.PodList object from pods and returns the encoded
// PodList.
func encodePods(pods []*api.Pod) (data []byte, err error) {
	podList := new(api.PodList)
	for _, pod := range pods {
		podList.Items = append(podList.Items, *pod)
	}
	return latest.GroupOrDie("").Codec.Encode(podList)
}

func rcByNameContainer(name string, replicas int, image string, labels map[string]string, c api.Container) *api.ReplicationController {
	// Add "name": name to the labels, overwriting if it exists.
	labels["name"] = name
	return &api.ReplicationController{
		TypeMeta: unversioned.TypeMeta{
			Kind:       "ReplicationController",
			APIVersion: latest.GroupOrDie("").Version,
		},
		ObjectMeta: api.ObjectMeta{
			Name: name,
		},
		Spec: api.ReplicationControllerSpec{
			Replicas: replicas,
			Selector: map[string]string{
				"name": name,
			},
			Template: &api.PodTemplateSpec{
				ObjectMeta: api.ObjectMeta{
					Labels: labels,
				},
				Spec: api.PodSpec{
					Containers: []api.Container{c},
				},
			},
		},
	}
}

func (config *KubeletManagedHostConfig) createPodSpec(podName string) *api.Pod {
	pod := &api.Pod{
		TypeMeta: unversioned.TypeMeta{
			Kind:       "Pod",
			APIVersion: latest.GroupOrDie("").Version,
		},
		ObjectMeta: api.ObjectMeta{
			Name:      podName,
			Namespace: config.f.Namespace.Name,
		},
		Spec: api.PodSpec{
			Containers: []api.Container{
				{
					Name:            "busybox-1",
					Image:           kubeletEtcHostsImageName,
					ImagePullPolicy: api.PullIfNotPresent,
					Command: []string{
						"sleep",
						"900",
					},
				},
				{
					Name:            "busybox-2",
					Image:           kubeletEtcHostsImageName,
					ImagePullPolicy: api.PullIfNotPresent,
					Command: []string{
						"sleep",
						"900",
					},
				},
				{
					Name:            "busybox-3",
					Image:           kubeletEtcHostsImageName,
					ImagePullPolicy: api.PullIfNotPresent,
					Command: []string{
						"sleep",
						"900",
					},
					VolumeMounts: []api.VolumeMount{
						{
							Name:      "host-etc-hosts",
							MountPath: "/etc/hosts",
						},
					},
				},
			},
			Volumes: []api.Volume{
				{
					Name: "host-etc-hosts",
					VolumeSource: api.VolumeSource{
						HostPath: &api.HostPathVolumeSource{
							Path: "/etc/hosts",
						},
					},
				},
			},
		},
	}
	return pod
}

func TestCodec(t *testing.T) {
	daemonSet := extensions.DaemonSet{}
	// We do want to use package latest rather than testapi here, because we
	// want to test if the package install and package latest work as expected.
	data, err := latest.GroupOrDie("extensions").Codec.Encode(&daemonSet)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	other := extensions.DaemonSet{}
	if err := json.Unmarshal(data, &other); err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if other.APIVersion != latest.GroupOrDie("extensions").GroupVersion || other.Kind != "DaemonSet" {
		t.Errorf("unexpected unmarshalled object %#v", other)
	}
}

func setExtensionsDefaults(config *Config) error {
	// if experimental group is not registered, return an error
	g, err := latest.Group("extensions")
	if err != nil {
		return err
	}
	config.Prefix = "apis/"
	if config.UserAgent == "" {
		config.UserAgent = DefaultKubernetesUserAgent()
	}
	// TODO: Unconditionally set the config.Version, until we fix the config.
	//if config.Version == "" {
	config.Version = g.GroupVersion
	//}

	versionInterfaces, err := g.InterfacesFor(config.Version)
	if err != nil {
		return fmt.Errorf("Extensions API version '%s' is not recognized (valid values: %s)",
			config.Version, strings.Join(latest.GroupOrDie("extensions").Versions, ", "))
	}
	config.Codec = versionInterfaces.Codec
	if config.QPS == 0 {
		config.QPS = 5
	}
	if config.Burst == 0 {
		config.Burst = 10
	}
	return nil
}

// SetKubernetesDefaults sets default values on the provided client config for accessing the
// Kubernetes API or returns an error if any of the defaults are impossible or invalid.
// TODO: this method needs to be split into one that sets defaults per group, expected to be fix in PR "Refactoring clientcache.go and helper.go #14592"
func SetKubernetesDefaults(config *Config) error {
	if config.Prefix == "" {
		config.Prefix = "/api"
	}
	if len(config.UserAgent) == 0 {
		config.UserAgent = DefaultKubernetesUserAgent()
	}
	if len(config.Version) == 0 {
		config.Version = defaultVersionFor(config)
	}
	version := config.Version
	versionInterfaces, err := latest.GroupOrDie("").InterfacesFor(version)
	if err != nil {
		return fmt.Errorf("API version '%s' is not recognized (valid values: %s)", version, strings.Join(latest.GroupOrDie("").Versions, ", "))
	}
	if config.Codec == nil {
		config.Codec = versionInterfaces.Codec
	}
	if config.QPS == 0.0 {
		config.QPS = 5.0
	}
	if config.Burst == 0 {
		config.Burst = 10
	}
	return nil
}

func runAMaster(t *testing.T) (*master.Master, *httptest.Server) {
	etcdStorage, err := master.NewEtcdStorage(newEtcdClient(), latest.GroupOrDie("").InterfacesFor, testapi.Default.Version(), etcdtest.PathPrefix())
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	storageDestinations := master.NewStorageDestinations()
	storageDestinations.AddAPIGroup("", etcdStorage)

	m := master.New(&master.Config{
		StorageDestinations:   storageDestinations,
		KubeletClient:         client.FakeKubeletClient{},
		EnableCoreControllers: true,
		EnableLogsSupport:     false,
		EnableProfiling:       true,
		EnableUISupport:       false,
		APIPrefix:             "/api",
		Authorizer:            apiserver.NewAlwaysAllowAuthorizer(),
		AdmissionControl:      admit.NewAlwaysAdmit(),
		StorageVersions:       map[string]string{"": testapi.Default.Version()},
	})

	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
		m.Handler.ServeHTTP(w, req)
	}))

	return m, s
}

func (config *KubeProxyTestConfig) createTestPodSpec() *api.Pod {
	pod := &api.Pod{
		TypeMeta: unversioned.TypeMeta{
			Kind:       "Pod",
			APIVersion: latest.GroupOrDie("").Version,
		},
		ObjectMeta: api.ObjectMeta{
			Name:      testPodName,
			Namespace: config.f.Namespace.Name,
		},
		Spec: api.PodSpec{
			Containers: []api.Container{
				{
					Name:            "webserver",
					Image:           netexecImageName,
					ImagePullPolicy: api.PullIfNotPresent,
					Command: []string{
						"/netexec",
						fmt.Sprintf("--http-port=%d", endpointHttpPort),
						fmt.Sprintf("--udp-port=%d", endpointUdpPort),
					},
					Ports: []api.ContainerPort{
						{
							Name:          "http",
							ContainerPort: testContainerHttpPort,
						},
					},
				},
			},
		},
	}
	return pod
}

func TestCodec(t *testing.T) {
	pod := internal.Pod{}
	// We do want to use package latest rather than testapi here, because we
	// want to test if the package install and package latest work as expected.
	data, err := latest.GroupOrDie("").Codec.Encode(&pod)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	other := internal.Pod{}
	if err := json.Unmarshal(data, &other); err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if other.APIVersion != latest.GroupOrDie("").Version || other.Kind != "Pod" {
		t.Errorf("unexpected unmarshalled object %#v", other)
	}
}

func (m *Master) defaultAPIGroupVersion() *apiserver.APIGroupVersion {
	return &apiserver.APIGroupVersion{
		Root: m.apiPrefix,

		Mapper: latest.GroupOrDie("").RESTMapper,

		Creater:   api.Scheme,
		Convertor: api.Scheme,
		Typer:     api.Scheme,
		Linker:    latest.GroupOrDie("").SelfLinker,

		Admit:   m.admissionControl,
		Context: m.requestContextMapper,

		MinRequestTimeout: m.minRequestTimeout,
	}
}