Golang union.New函数代码示例

// New returns an authenticator.Request or an error that supports the standard
// Kubernetes authentication mechanisms.
func New(config AuthenticatorConfig) (authenticator.Request, error) {
	var authenticators []authenticator.Request

	if len(config.BasicAuthFile) > 0 {
		basicAuth, err := newAuthenticatorFromBasicAuthFile(config.BasicAuthFile)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, basicAuth)
	}

	if len(config.ClientCAFile) > 0 {
		certAuth, err := newAuthenticatorFromClientCAFile(config.ClientCAFile)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, certAuth)
	}

	if len(config.TokenAuthFile) > 0 {
		tokenAuth, err := newAuthenticatorFromTokenFile(config.TokenAuthFile)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, tokenAuth)
	}

	if len(config.OIDCIssuerURL) > 0 && len(config.OIDCClientID) > 0 {
		oidcAuth, err := newAuthenticatorFromOIDCIssuerURL(config.OIDCIssuerURL, config.OIDCClientID, config.OIDCCAFile, config.OIDCUsernameClaim, config.OIDCGroupsClaim)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, oidcAuth)
	}

	if len(config.ServiceAccountKeyFile) > 0 {
		serviceAccountAuth, err := newServiceAccountAuthenticator(config.ServiceAccountKeyFile, config.ServiceAccountLookup, config.ServiceAccountTokenGetter)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, serviceAccountAuth)
	}

	if len(config.KeystoneURL) > 0 {
		keystoneAuth, err := newAuthenticatorFromKeystoneURL(config.KeystoneURL)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, keystoneAuth)
	}

	switch len(authenticators) {
	case 0:
		return nil, nil
	case 1:
		return authenticators[0], nil
	default:
		return union.New(authenticators...), nil
	}
}

// Complete fills in any fields not set that are required to have valid data and can be derived
// from other fields.  If you're going to `ApplyOptions`, do that first.  It's mutating the receiver.
func (c *Config) Complete() completedConfig {
	if len(c.ExternalAddress) == 0 && c.PublicAddress != nil {
		hostAndPort := c.PublicAddress.String()
		if c.ReadWritePort != 0 {
			hostAndPort = net.JoinHostPort(hostAndPort, strconv.Itoa(c.ReadWritePort))
		}
		c.ExternalAddress = hostAndPort
	}
	// All APIs will have the same authentication for now.
	if c.OpenAPIConfig != nil && c.OpenAPIConfig.SecurityDefinitions != nil {
		c.OpenAPIConfig.DefaultSecurity = []map[string][]string{}
		keys := []string{}
		for k := range *c.OpenAPIConfig.SecurityDefinitions {
			keys = append(keys, k)
		}
		sort.Strings(keys)
		for _, k := range keys {
			c.OpenAPIConfig.DefaultSecurity = append(c.OpenAPIConfig.DefaultSecurity, map[string][]string{k: {}})
		}
		if c.OpenAPIConfig.CommonResponses == nil {
			c.OpenAPIConfig.CommonResponses = map[int]spec.Response{}
		}
		if _, exists := c.OpenAPIConfig.CommonResponses[http.StatusUnauthorized]; !exists {
			c.OpenAPIConfig.CommonResponses[http.StatusUnauthorized] = spec.Response{
				ResponseProps: spec.ResponseProps{
					Description: "Unauthorized",
				},
			}
		}
	}
	if c.DiscoveryAddresses == nil {
		c.DiscoveryAddresses = DefaultDiscoveryAddresses{DefaultAddress: c.ExternalAddress}
	}

	// If the loopbackclientconfig is specified AND it has a token for use against the API server
	// wrap the authenticator and authorizer in loopback authentication logic
	if c.Authenticator != nil && c.Authorizer != nil && c.LoopbackClientConfig != nil && len(c.LoopbackClientConfig.BearerToken) > 0 {
		privilegedLoopbackToken := c.LoopbackClientConfig.BearerToken
		var uid = uuid.NewRandom().String()
		tokens := make(map[string]*user.DefaultInfo)
		tokens[privilegedLoopbackToken] = &user.DefaultInfo{
			Name:   user.APIServerUser,
			UID:    uid,
			Groups: []string{user.SystemPrivilegedGroup},
		}

		tokenAuthenticator := apiserverauthenticator.NewAuthenticatorFromTokens(tokens)
		c.Authenticator = authenticatorunion.New(tokenAuthenticator, c.Authenticator)

		tokenAuthorizer := apiserverauthorizer.NewPrivilegedGroups(user.SystemPrivilegedGroup)
		c.Authorizer = authorizerunion.New(tokenAuthorizer, c.Authorizer)
	}

	return completedConfig{c}
}

// NewAuthenticator returns an authenticator.Request or an error
func NewAuthenticator(basicAuthFile, clientCAFile, tokenFile, serviceAccountKeyFile string, serviceAccountLookup bool, storage storage.Interface, keystoneURL string) (authenticator.Request, error) {
	var authenticators []authenticator.Request

	if len(basicAuthFile) > 0 {
		basicAuth, err := newAuthenticatorFromBasicAuthFile(basicAuthFile)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, basicAuth)
	}

	if len(clientCAFile) > 0 {
		certAuth, err := newAuthenticatorFromClientCAFile(clientCAFile)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, certAuth)
	}

	if len(tokenFile) > 0 {
		tokenAuth, err := newAuthenticatorFromTokenFile(tokenFile)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, tokenAuth)
	}

	if len(serviceAccountKeyFile) > 0 {
		serviceAccountAuth, err := newServiceAccountAuthenticator(serviceAccountKeyFile, serviceAccountLookup, storage)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, serviceAccountAuth)
	}

	if len(keystoneURL) > 0 {
		keystoneAuth, err := newAuthenticatorFromKeystoneURL(keystoneURL)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, keystoneAuth)
	}

	switch len(authenticators) {
	case 0:
		return nil, nil
	case 1:
		return authenticators[0], nil
	default:
		return union.New(authenticators...), nil
	}
}

// startServiceAccountTestServer returns a started server
// It is the responsibility of the caller to ensure the returned stopFunc is called
func startServiceAccountTestServer(t *testing.T) (*clientset.Clientset, restclient.Config, func()) {

	deleteAllEtcdKeys()

	// Listener
	var m *master.Master
	apiServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
		m.Handler.ServeHTTP(w, req)
	}))

	// Anonymous client config
	clientConfig := restclient.Config{Host: apiServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}}
	// Root client
	// TODO: remove rootClient after we refactor pkg/admission to use the clientset.
	rootClientset := clientset.NewForConfigOrDie(&restclient.Config{Host: apiServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}, BearerToken: rootToken})
	// Set up two authenticators:
	// 1. A token authenticator that maps the rootToken to the "root" user
	// 2. A ServiceAccountToken authenticator that validates ServiceAccount tokens
	rootTokenAuth := authenticator.TokenFunc(func(token string) (user.Info, bool, error) {
		if token == rootToken {
			return &user.DefaultInfo{rootUserName, "", []string{}}, true, nil
		}
		return nil, false, nil
	})
	serviceAccountKey, _ := rsa.GenerateKey(rand.Reader, 2048)
	serviceAccountTokenGetter := serviceaccountcontroller.NewGetterFromClient(rootClientset)
	serviceAccountTokenAuth := serviceaccount.JWTTokenAuthenticator([]*rsa.PublicKey{&serviceAccountKey.PublicKey}, true, serviceAccountTokenGetter)
	authenticator := union.New(
		bearertoken.New(rootTokenAuth),
		bearertoken.New(serviceAccountTokenAuth),
	)

	// Set up a stub authorizer:
	// 1. The "root" user is allowed to do anything
	// 2. ServiceAccounts named "ro" are allowed read-only operations in their namespace
	// 3. ServiceAccounts named "rw" are allowed any operation in their namespace
	authorizer := authorizer.AuthorizerFunc(func(attrs authorizer.Attributes) error {
		username := attrs.GetUserName()
		ns := attrs.GetNamespace()

		// If the user is "root"...
		if username == rootUserName {
			// allow them to do anything
			return nil
		}

		// If the user is a service account...
		if serviceAccountNamespace, serviceAccountName, err := serviceaccount.SplitUsername(username); err == nil {
			// Limit them to their own namespace
			if serviceAccountNamespace == ns {
				switch serviceAccountName {
				case readOnlyServiceAccountName:
					if attrs.IsReadOnly() {
						return nil
					}
				case readWriteServiceAccountName:
					return nil
				}
			}
		}

		return fmt.Errorf("User %s is denied (ns=%s, readonly=%v, resource=%s)", username, ns, attrs.IsReadOnly(), attrs.GetResource())
	})

	// Set up admission plugin to auto-assign serviceaccounts to pods
	serviceAccountAdmission := serviceaccountadmission.NewServiceAccount(rootClientset)

	masterConfig := framework.NewMasterConfig()
	masterConfig.EnableIndex = true
	masterConfig.Authenticator = authenticator
	masterConfig.Authorizer = authorizer
	masterConfig.AdmissionControl = serviceAccountAdmission

	// Create a master and install handlers into mux.
	m, err := master.New(masterConfig)
	if err != nil {
		t.Fatalf("Error in bringing up the master: %v", err)
	}

	// Start the service account and service account token controllers
	tokenController := serviceaccountcontroller.NewTokensController(rootClientset, serviceaccountcontroller.TokensControllerOptions{TokenGenerator: serviceaccount.JWTTokenGenerator(serviceAccountKey)})
	tokenController.Run()
	serviceAccountController := serviceaccountcontroller.NewServiceAccountsController(rootClientset, serviceaccountcontroller.DefaultServiceAccountsControllerOptions())
	serviceAccountController.Run()
	// Start the admission plugin reflectors
	serviceAccountAdmission.Run()

	stop := func() {
		tokenController.Stop()
		serviceAccountController.Stop()
		serviceAccountAdmission.Stop()
		// TODO: Uncomment when fix #19254
		// apiServer.Close()
	}

	return rootClientset, clientConfig, stop
}

// Run runs the specified APIServer.  This should never exit.
func Run(s *options.APIServer) error {
	genericvalidation.VerifyEtcdServersList(s.ServerRunOptions)
	genericapiserver.DefaultAndValidateRunOptions(s.ServerRunOptions)

	capabilities.Initialize(capabilities.Capabilities{
		AllowPrivileged: s.AllowPrivileged,
		// TODO(vmarmol): Implement support for HostNetworkSources.
		PrivilegedSources: capabilities.PrivilegedSources{
			HostNetworkSources: []string{},
			HostPIDSources:     []string{},
			HostIPCSources:     []string{},
		},
		PerConnectionBandwidthLimitBytesPerSec: s.MaxConnectionBytesPerSec,
	})

	// Setup tunneler if needed
	var tunneler genericapiserver.Tunneler
	var proxyDialerFn apiserver.ProxyDialerFunc
	if len(s.SSHUser) > 0 {
		// Get ssh key distribution func, if supported
		var installSSH genericapiserver.InstallSSHKey
		cloud, err := cloudprovider.InitCloudProvider(s.CloudProvider, s.CloudConfigFile)
		if err != nil {
			glog.Fatalf("Cloud provider could not be initialized: %v", err)
		}
		if cloud != nil {
			if instances, supported := cloud.Instances(); supported {
				installSSH = instances.AddSSHKeyToAllInstances
			}
		}
		if s.KubeletConfig.Port == 0 {
			glog.Fatalf("Must enable kubelet port if proxy ssh-tunneling is specified.")
		}
		// Set up the tunneler
		// TODO(cjcullen): If we want this to handle per-kubelet ports or other
		// kubelet listen-addresses, we need to plumb through options.
		healthCheckPath := &url.URL{
			Scheme: "https",
			Host:   net.JoinHostPort("127.0.0.1", strconv.FormatUint(uint64(s.KubeletConfig.Port), 10)),
			Path:   "healthz",
		}
		tunneler = genericapiserver.NewSSHTunneler(s.SSHUser, s.SSHKeyfile, healthCheckPath, installSSH)

		// Use the tunneler's dialer to connect to the kubelet
		s.KubeletConfig.Dial = tunneler.Dial
		// Use the tunneler's dialer when proxying to pods, services, and nodes
		proxyDialerFn = tunneler.Dial
	}

	// Proxying to pods and services is IP-based... don't expect to be able to verify the hostname
	proxyTLSClientConfig := &tls.Config{InsecureSkipVerify: true}

	kubeletClient, err := kubeletclient.NewStaticKubeletClient(&s.KubeletConfig)
	if err != nil {
		glog.Fatalf("Failed to start kubelet client: %v", err)
	}

	storageGroupsToEncodingVersion, err := s.StorageGroupsToEncodingVersion()
	if err != nil {
		glog.Fatalf("error generating storage version map: %s", err)
	}
	storageFactory, err := genericapiserver.BuildDefaultStorageFactory(
		s.StorageConfig, s.DefaultStorageMediaType, api.Codecs,
		genericapiserver.NewDefaultResourceEncodingConfig(), storageGroupsToEncodingVersion,
		// FIXME: this GroupVersionResource override should be configurable
		[]unversioned.GroupVersionResource{batch.Resource("scheduledjobs").WithVersion("v2alpha1")},
		master.DefaultAPIResourceConfigSource(), s.RuntimeConfig)
	if err != nil {
		glog.Fatalf("error in initializing storage factory: %s", err)
	}
	storageFactory.AddCohabitatingResources(batch.Resource("jobs"), extensions.Resource("jobs"))
	storageFactory.AddCohabitatingResources(autoscaling.Resource("horizontalpodautoscalers"), extensions.Resource("horizontalpodautoscalers"))
	for _, override := range s.EtcdServersOverrides {
		tokens := strings.Split(override, "#")
		if len(tokens) != 2 {
			glog.Errorf("invalid value of etcd server overrides: %s", override)
			continue
		}

		apiresource := strings.Split(tokens[0], "/")
		if len(apiresource) != 2 {
			glog.Errorf("invalid resource definition: %s", tokens[0])
			continue
		}
		group := apiresource[0]
		resource := apiresource[1]
		groupResource := unversioned.GroupResource{Group: group, Resource: resource}

		servers := strings.Split(tokens[1], ";")
		storageFactory.SetEtcdLocation(groupResource, servers)
	}

	// Default to the private server key for service account token signing
	if s.ServiceAccountKeyFile == "" && s.TLSPrivateKeyFile != "" {
		if authenticator.IsValidServiceAccountKeyFile(s.TLSPrivateKeyFile) {
			s.ServiceAccountKeyFile = s.TLSPrivateKeyFile
		} else {
			glog.Warning("No RSA key provided, service account token authentication disabled")
		}
//.........这里部分代码省略.........

// Run runs the specified APIServer.  This should never exit.
func Run(s *options.ServerRunOptions) error {
	genericvalidation.VerifyEtcdServersList(s.ServerRunOptions)
	genericapiserver.DefaultAndValidateRunOptions(s.ServerRunOptions)

	// TODO: register cluster federation resources here.
	resourceConfig := genericapiserver.NewResourceConfig()

	storageGroupsToEncodingVersion, err := s.StorageGroupsToEncodingVersion()
	if err != nil {
		glog.Fatalf("error generating storage version map: %s", err)
	}
	storageFactory, err := genericapiserver.BuildDefaultStorageFactory(
		s.StorageConfig, s.DefaultStorageMediaType, api.Codecs,
		genericapiserver.NewDefaultResourceEncodingConfig(), storageGroupsToEncodingVersion,
		[]unversioned.GroupVersionResource{}, resourceConfig, s.RuntimeConfig)
	if err != nil {
		glog.Fatalf("error in initializing storage factory: %s", err)
	}

	for _, override := range s.EtcdServersOverrides {
		tokens := strings.Split(override, "#")
		if len(tokens) != 2 {
			glog.Errorf("invalid value of etcd server overrides: %s", override)
			continue
		}

		apiresource := strings.Split(tokens[0], "/")
		if len(apiresource) != 2 {
			glog.Errorf("invalid resource definition: %s", tokens[0])
			continue
		}
		group := apiresource[0]
		resource := apiresource[1]
		groupResource := unversioned.GroupResource{Group: group, Resource: resource}

		servers := strings.Split(tokens[1], ";")
		storageFactory.SetEtcdLocation(groupResource, servers)
	}

	apiAuthenticator, err := authenticator.New(authenticator.AuthenticatorConfig{
		Anonymous:         s.AnonymousAuth,
		AnyToken:          s.EnableAnyToken,
		BasicAuthFile:     s.BasicAuthFile,
		ClientCAFile:      s.ClientCAFile,
		TokenAuthFile:     s.TokenAuthFile,
		OIDCIssuerURL:     s.OIDCIssuerURL,
		OIDCClientID:      s.OIDCClientID,
		OIDCCAFile:        s.OIDCCAFile,
		OIDCUsernameClaim: s.OIDCUsernameClaim,
		OIDCGroupsClaim:   s.OIDCGroupsClaim,
		KeystoneURL:       s.KeystoneURL,
	})
	if err != nil {
		glog.Fatalf("Invalid Authentication Config: %v", err)
	}

	authorizationModeNames := strings.Split(s.AuthorizationMode, ",")

	modeEnabled := func(mode string) bool {
		for _, m := range authorizationModeNames {
			if m == mode {
				return true
			}
		}
		return false
	}

	authorizationConfig := authorizer.AuthorizationConfig{
		PolicyFile:                  s.AuthorizationPolicyFile,
		WebhookConfigFile:           s.AuthorizationWebhookConfigFile,
		WebhookCacheAuthorizedTTL:   s.AuthorizationWebhookCacheAuthorizedTTL,
		WebhookCacheUnauthorizedTTL: s.AuthorizationWebhookCacheUnauthorizedTTL,
		RBACSuperUser:               s.AuthorizationRBACSuperUser,
	}
	if modeEnabled(genericoptions.ModeRBAC) {
		mustGetRESTOptions := func(resource string) generic.RESTOptions {
			config, err := storageFactory.NewConfig(rbac.Resource(resource))
			if err != nil {
				glog.Fatalf("Unable to get %s storage: %v", resource, err)
			}
			return generic.RESTOptions{StorageConfig: config, Decorator: generic.UndecoratedStorage, ResourcePrefix: storageFactory.ResourcePrefix(rbac.Resource(resource))}
		}

		// For initial bootstrapping go directly to etcd to avoid privillege escalation check.
		authorizationConfig.RBACRoleRegistry = role.NewRegistry(roleetcd.NewREST(mustGetRESTOptions("roles")))
		authorizationConfig.RBACRoleBindingRegistry = rolebinding.NewRegistry(rolebindingetcd.NewREST(mustGetRESTOptions("rolebindings")))
		authorizationConfig.RBACClusterRoleRegistry = clusterrole.NewRegistry(clusterroleetcd.NewREST(mustGetRESTOptions("clusterroles")))
		authorizationConfig.RBACClusterRoleBindingRegistry = clusterrolebinding.NewRegistry(clusterrolebindingetcd.NewREST(mustGetRESTOptions("clusterrolebindings")))
	}

	apiAuthorizer, err := authorizer.NewAuthorizerFromAuthorizationConfig(authorizationModeNames, authorizationConfig)
	if err != nil {
		glog.Fatalf("Invalid Authorization Config: %v", err)
	}

	admissionControlPluginNames := strings.Split(s.AdmissionControl, ",")
	privilegedLoopbackToken := uuid.NewRandom().String()

	selfClientConfig, err := s.NewSelfClientConfig(privilegedLoopbackToken)
//.........这里部分代码省略.........

// startMasterOrDie starts a kubernetes master and an httpserver to handle api requests
func startMasterOrDie(masterConfig *master.Config, incomingServer *httptest.Server, masterReceiver MasterReceiver) (*master.Master, *httptest.Server) {
	var m *master.Master
	var s *httptest.Server

	if incomingServer != nil {
		s = incomingServer
	} else {
		s = httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
			m.GenericAPIServer.Handler.ServeHTTP(w, req)
		}))
	}

	if masterConfig == nil {
		masterConfig = NewMasterConfig()
		masterConfig.GenericConfig.EnableProfiling = true
		masterConfig.GenericConfig.EnableSwaggerSupport = true
		masterConfig.GenericConfig.EnableOpenAPISupport = true
		masterConfig.GenericConfig.OpenAPIConfig.Info = &spec.Info{
			InfoProps: spec.InfoProps{
				Title:   "Kubernetes",
				Version: "unversioned",
			},
		}
		masterConfig.GenericConfig.OpenAPIConfig.DefaultResponse = &spec.Response{
			ResponseProps: spec.ResponseProps{
				Description: "Default Response.",
			},
		}
		masterConfig.GenericConfig.OpenAPIConfig.Definitions = openapi.OpenAPIDefinitions
	}

	// set the loopback client config
	if masterConfig.GenericConfig.LoopbackClientConfig == nil {
		masterConfig.GenericConfig.LoopbackClientConfig = &restclient.Config{QPS: 50, Burst: 100, ContentConfig: restclient.ContentConfig{NegotiatedSerializer: api.Codecs}}
	}
	masterConfig.GenericConfig.LoopbackClientConfig.Host = s.URL

	privilegedLoopbackToken := uuid.NewRandom().String()
	// wrap any available authorizer
	tokens := make(map[string]*user.DefaultInfo)
	tokens[privilegedLoopbackToken] = &user.DefaultInfo{
		Name:   user.APIServerUser,
		UID:    uuid.NewRandom().String(),
		Groups: []string{user.SystemPrivilegedGroup},
	}

	tokenAuthenticator := authenticator.NewAuthenticatorFromTokens(tokens)
	if masterConfig.GenericConfig.Authenticator == nil {
		masterConfig.GenericConfig.Authenticator = authenticatorunion.New(tokenAuthenticator, authauthenticator.RequestFunc(alwaysEmpty))
	} else {
		masterConfig.GenericConfig.Authenticator = authenticatorunion.New(tokenAuthenticator, masterConfig.GenericConfig.Authenticator)
	}

	if masterConfig.GenericConfig.Authorizer != nil {
		tokenAuthorizer := authorizer.NewPrivilegedGroups(user.SystemPrivilegedGroup)
		masterConfig.GenericConfig.Authorizer = authorizerunion.New(tokenAuthorizer, masterConfig.GenericConfig.Authorizer)
	} else {
		masterConfig.GenericConfig.Authorizer = alwaysAllow{}
	}

	masterConfig.GenericConfig.LoopbackClientConfig.BearerToken = privilegedLoopbackToken

	m, err := masterConfig.Complete().New()
	if err != nil {
		glog.Fatalf("error in bringing up the master: %v", err)
	}
	if masterReceiver != nil {
		masterReceiver.SetMaster(m)
	}

	cfg := *masterConfig.GenericConfig.LoopbackClientConfig
	cfg.ContentConfig.GroupVersion = &unversioned.GroupVersion{}
	privilegedClient, err := restclient.RESTClientFor(&cfg)
	if err != nil {
		glog.Fatal(err)
	}
	err = wait.PollImmediate(100*time.Millisecond, 30*time.Second, func() (bool, error) {
		result := privilegedClient.Get().AbsPath("/healthz").Do()
		status := 0
		result.StatusCode(&status)
		if status == 200 {
			return true, nil
		}
		return false, nil
	})
	if err != nil {
		glog.Fatal(err)
	}

	// TODO have this start method actually use the normal start sequence for the API server
	// this method never actually calls the `Run` method for the API server
	// fire the post hooks ourselves
	m.GenericAPIServer.RunPostStartHooks()

	// wait for services to be ready
	if masterConfig.EnableCoreControllers {
		// TODO Once /healthz is updated for posthooks, we'll wait for good health
		coreClient := coreclient.NewForConfigOrDie(&cfg)
		svcWatch, err := coreClient.Services(api.NamespaceDefault).Watch(v1.ListOptions{})
//.........这里部分代码省略.........

// startServiceAccountTestServer returns a started server
// It is the responsibility of the caller to ensure the returned stopFunc is called
func startServiceAccountTestServer(t *testing.T) (*client.Client, client.Config, func()) {

	deleteAllEtcdKeys()

	// Etcd
	etcdStorage, err := framework.NewEtcdStorage()
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	expEtcdStorage, err := framework.NewExtensionsEtcdStorage(nil)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	storageDestinations := master.NewStorageDestinations()
	storageDestinations.AddAPIGroup("", etcdStorage)
	storageDestinations.AddAPIGroup("extensions", expEtcdStorage)

	storageVersions := make(map[string]string)
	storageVersions[""] = testapi.Default.Version()
	storageVersions["extensions"] = testapi.Extensions.GroupAndVersion()

	// Listener
	var m *master.Master
	apiServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
		m.Handler.ServeHTTP(w, req)
	}))

	// Anonymous client config
	clientConfig := client.Config{Host: apiServer.URL, Version: testapi.Default.Version()}
	// Root client
	rootClient := client.NewOrDie(&client.Config{Host: apiServer.URL, Version: testapi.Default.Version(), BearerToken: rootToken})

	// Set up two authenticators:
	// 1. A token authenticator that maps the rootToken to the "root" user
	// 2. A ServiceAccountToken authenticator that validates ServiceAccount tokens
	rootTokenAuth := authenticator.TokenFunc(func(token string) (user.Info, bool, error) {
		if token == rootToken {
			return &user.DefaultInfo{rootUserName, "", "", "", []string{}, ""}, true, nil
		}
		return nil, false, nil
	})
	serviceAccountKey, err := rsa.GenerateKey(rand.Reader, 2048)
	serviceAccountTokenGetter := serviceaccount.NewGetterFromClient(rootClient)
	serviceAccountTokenAuth := serviceaccount.JWTTokenAuthenticator([]*rsa.PublicKey{&serviceAccountKey.PublicKey}, true, serviceAccountTokenGetter)
	authenticator := union.New(
		bearertoken.New(rootTokenAuth),
		bearertoken.New(serviceAccountTokenAuth),
	)

	// Set up a stub authorizer:
	// 1. The "root" user is allowed to do anything
	// 2. ServiceAccounts named "ro" are allowed read-only operations in their namespace
	// 3. ServiceAccounts named "rw" are allowed any operation in their namespace
	authorizer := authorizer.AuthorizerFunc(func(attrs authorizer.Attributes) (string, error) {
		username := attrs.GetUserName()
		ns := attrs.GetNamespace()

		// If the user is "root"...
		if username == rootUserName {
			// allow them to do anything
			return "", nil
		}

		// If the user is a service account...
		if serviceAccountNamespace, serviceAccountName, err := serviceaccount.SplitUsername(username); err == nil {
			// Limit them to their own namespace
			if serviceAccountNamespace == ns {
				switch serviceAccountName {
				case readOnlyServiceAccountName:
					if attrs.IsReadOnly() {
						return "", nil
					}
				case readWriteServiceAccountName:
					return "", nil
				}
			}
		}

		return "", fmt.Errorf("User %s is denied (ns=%s, readonly=%v, resource=%s)", username, ns, attrs.IsReadOnly(), attrs.GetResource())
	})

	// Set up admission plugin to auto-assign serviceaccounts to pods
	serviceAccountAdmission := serviceaccountadmission.NewServiceAccount(rootClient)

	// Create a master and install handlers into mux.
	m = master.New(&master.Config{
		StorageDestinations: storageDestinations,
		KubeletClient:       client.FakeKubeletClient{},
		EnableLogsSupport:   false,
		EnableUISupport:     false,
		EnableIndex:         true,
		APIPrefix:           "/api",
		Authenticator:       authenticator,
		Authorizer:          authorizer,
		AdmissionControl:    serviceAccountAdmission,
		StorageVersions:     storageVersions,
//.........这里部分代码省略.........

// New returns an authenticator.Request or an error that supports the standard
// Kubernetes authentication mechanisms.
func New(config AuthenticatorConfig) (authenticator.Request, *spec.SecurityDefinitions, error) {
	var authenticators []authenticator.Request
	securityDefinitions := spec.SecurityDefinitions{}
	hasBasicAuth := false
	hasTokenAuth := false

	// front-proxy, BasicAuth methods, local first, then remote
	// Add the front proxy authenticator if requested
	if config.RequestHeaderConfig != nil {
		requestHeaderAuthenticator, err := headerrequest.NewSecure(
			config.RequestHeaderConfig.ClientCA,
			config.RequestHeaderConfig.AllowedClientNames,
			config.RequestHeaderConfig.UsernameHeaders,
		)
		if err != nil {
			return nil, nil, err
		}
		authenticators = append(authenticators, requestHeaderAuthenticator)
	}

	if len(config.BasicAuthFile) > 0 {
		basicAuth, err := newAuthenticatorFromBasicAuthFile(config.BasicAuthFile)
		if err != nil {
			return nil, nil, err
		}
		authenticators = append(authenticators, basicAuth)
		hasBasicAuth = true
	}
	if len(config.KeystoneURL) > 0 {
		keystoneAuth, err := newAuthenticatorFromKeystoneURL(config.KeystoneURL)
		if err != nil {
			return nil, nil, err
		}
		authenticators = append(authenticators, keystoneAuth)
		hasBasicAuth = true
	}

	// X509 methods
	if len(config.ClientCAFile) > 0 {
		certAuth, err := newAuthenticatorFromClientCAFile(config.ClientCAFile)
		if err != nil {
			return nil, nil, err
		}
		authenticators = append(authenticators, certAuth)
	}

	// Bearer token methods, local first, then remote
	if len(config.TokenAuthFile) > 0 {
		tokenAuth, err := newAuthenticatorFromTokenFile(config.TokenAuthFile)
		if err != nil {
			return nil, nil, err
		}
		authenticators = append(authenticators, tokenAuth)
		hasTokenAuth = true
	}
	if len(config.ServiceAccountKeyFiles) > 0 {
		serviceAccountAuth, err := newServiceAccountAuthenticator(config.ServiceAccountKeyFiles, config.ServiceAccountLookup, config.ServiceAccountTokenGetter)
		if err != nil {
			return nil, nil, err
		}
		authenticators = append(authenticators, serviceAccountAuth)
		hasTokenAuth = true
	}
	// NOTE(ericchiang): Keep the OpenID Connect after Service Accounts.
	//
	// Because both plugins verify JWTs whichever comes first in the union experiences
	// cache misses for all requests using the other. While the service account plugin
	// simply returns an error, the OpenID Connect plugin may query the provider to
	// update the keys, causing performance hits.
	if len(config.OIDCIssuerURL) > 0 && len(config.OIDCClientID) > 0 {
		oidcAuth, err := newAuthenticatorFromOIDCIssuerURL(config.OIDCIssuerURL, config.OIDCClientID, config.OIDCCAFile, config.OIDCUsernameClaim, config.OIDCGroupsClaim)
		if err != nil {
			return nil, nil, err
		}
		authenticators = append(authenticators, oidcAuth)
		hasTokenAuth = true
	}
	if len(config.WebhookTokenAuthnConfigFile) > 0 {
		webhookTokenAuth, err := newWebhookTokenAuthenticator(config.WebhookTokenAuthnConfigFile, config.WebhookTokenAuthnCacheTTL)
		if err != nil {
			return nil, nil, err
		}
		authenticators = append(authenticators, webhookTokenAuth)
		hasTokenAuth = true
	}

	// always add anytoken last, so that every other token authenticator gets to try first
	if config.AnyToken {
		authenticators = append(authenticators, bearertoken.New(anytoken.AnyTokenAuthenticator{}))
		hasTokenAuth = true
	}

	if hasBasicAuth {
		securityDefinitions["HTTPBasic"] = &spec.SecurityScheme{
			SecuritySchemeProps: spec.SecuritySchemeProps{
				Type:        "basic",
				Description: "HTTP Basic authentication",
			},
//.........这里部分代码省略.........

// New returns an authenticator.Request or an error that supports the standard
// Kubernetes authentication mechanisms.
func New(config AuthenticatorConfig) (authenticator.Request, error) {
	var authenticators []authenticator.Request

	// BasicAuth methods, local first, then remote
	if len(config.BasicAuthFile) > 0 {
		basicAuth, err := newAuthenticatorFromBasicAuthFile(config.BasicAuthFile)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, basicAuth)
	}
	if len(config.KeystoneURL) > 0 {
		keystoneAuth, err := newAuthenticatorFromKeystoneURL(config.KeystoneURL)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, keystoneAuth)
	}

	// X509 methods
	if len(config.ClientCAFile) > 0 {
		certAuth, err := newAuthenticatorFromClientCAFile(config.ClientCAFile)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, certAuth)
	}

	// Bearer token methods, local first, then remote
	if len(config.TokenAuthFile) > 0 {
		tokenAuth, err := newAuthenticatorFromTokenFile(config.TokenAuthFile)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, tokenAuth)
	}
	if len(config.ServiceAccountKeyFile) > 0 {
		serviceAccountAuth, err := newServiceAccountAuthenticator(config.ServiceAccountKeyFile, config.ServiceAccountLookup, config.ServiceAccountTokenGetter)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, serviceAccountAuth)
	}
	// NOTE(ericchiang): Keep the OpenID Connect after Service Accounts.
	//
	// Because both plugins verify JWTs whichever comes first in the union experiences
	// cache misses for all requests using the other. While the service account plugin
	// simply returns an error, the OpenID Connect plugin may query the provider to
	// update the keys, causing performance hits.
	if len(config.OIDCIssuerURL) > 0 && len(config.OIDCClientID) > 0 {
		oidcAuth, err := newAuthenticatorFromOIDCIssuerURL(config.OIDCIssuerURL, config.OIDCClientID, config.OIDCCAFile, config.OIDCUsernameClaim, config.OIDCGroupsClaim)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, oidcAuth)
	}
	if len(config.WebhookTokenAuthnConfigFile) > 0 {
		webhookTokenAuth, err := newWebhookTokenAuthenticator(config.WebhookTokenAuthnConfigFile, config.WebhookTokenAuthnCacheTTL)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, webhookTokenAuth)
	}

	// always add anytoken last, so that every other token authenticator gets to try first
	if config.AnyToken {
		authenticators = append(authenticators, bearertoken.New(anytoken.AnyTokenAuthenticator{}))
	}

	if len(authenticators) == 0 {
		if config.Anonymous {
			return anonymous.NewAuthenticator(), nil
		}
	}

	switch len(authenticators) {
	case 0:
		return nil, nil
	}

	authenticator := union.New(authenticators...)

	authenticator = group.NewGroupAdder(authenticator, []string{user.AllAuthenticated})

	if config.Anonymous {
		// If the authenticator chain returns an error, return an error (don't consider a bad bearer token anonymous).
		authenticator = union.NewFailOnError(authenticator, anonymous.NewAuthenticator())
	}

	return authenticator, nil
}

// New returns an authenticator.Request or an error that supports the standard
// Kubernetes authentication mechanisms.
func New(config AuthenticatorConfig) (authenticator.Request, error) {
	var authenticators []authenticator.Request

	if len(config.BasicAuthFile) > 0 {
		basicAuth, err := newAuthenticatorFromBasicAuthFile(config.BasicAuthFile)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, basicAuth)
	}

	if len(config.ClientCAFile) > 0 {
		certAuth, err := newAuthenticatorFromClientCAFile(config.ClientCAFile)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, certAuth)
	}

	if len(config.TokenAuthFile) > 0 {
		tokenAuth, err := newAuthenticatorFromTokenFile(config.TokenAuthFile)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, tokenAuth)
	}

	if len(config.ServiceAccountKeyFile) > 0 {
		serviceAccountAuth, err := newServiceAccountAuthenticator(config.ServiceAccountKeyFile, config.ServiceAccountLookup, config.ServiceAccountTokenGetter)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, serviceAccountAuth)
	}

	// NOTE(ericchiang): Keep the OpenID Connect after Service Accounts.
	//
	// Because both plugins verify JWTs whichever comes first in the union experiences
	// cache misses for all requests using the other. While the service account plugin
	// simply returns an error, the OpenID Connect plugin may query the provider to
	// update the keys, causing performance hits.
	if len(config.OIDCIssuerURL) > 0 && len(config.OIDCClientID) > 0 {
		oidcAuth, err := newAuthenticatorFromOIDCIssuerURL(config.OIDCIssuerURL, config.OIDCClientID, config.OIDCCAFile, config.OIDCUsernameClaim, config.OIDCGroupsClaim)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, oidcAuth)
	}

	if len(config.KeystoneURL) > 0 {
		keystoneAuth, err := newAuthenticatorFromKeystoneURL(config.KeystoneURL)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, keystoneAuth)
	}

	if len(config.WebhookTokenAuthnConfigFile) > 0 {
		webhookTokenAuth, err := newWebhookTokenAuthenticator(config.WebhookTokenAuthnConfigFile, config.WebhookTokenAuthnCacheTTL)
		if err != nil {
			return nil, err
		}
		authenticators = append(authenticators, webhookTokenAuth)
	}

	switch len(authenticators) {
	case 0:
		return nil, nil
	case 1:
		return authenticators[0], nil
	default:
		return union.New(authenticators...), nil
	}
}

// Run runs the specified APIServer.  This should never exit.
func Run(s *options.ServerRunOptions) error {
	genericvalidation.VerifyEtcdServersList(s.GenericServerRunOptions)
	genericapiserver.DefaultAndValidateRunOptions(s.GenericServerRunOptions)
	genericConfig := genericapiserver.NewConfig(). // create the new config
							ApplyOptions(s.GenericServerRunOptions). // apply the options selected
							Complete()                               // set default values based on the known values

	serviceIPRange, apiServerServiceIP, err := genericapiserver.DefaultServiceIPRange(s.GenericServerRunOptions.ServiceClusterIPRange)
	if err != nil {
		glog.Fatalf("Error determining service IP ranges: %v", err)
	}
	if err := genericConfig.MaybeGenerateServingCerts(apiServerServiceIP); err != nil {
		glog.Fatalf("Failed to generate service certificate: %v", err)
	}

	capabilities.Initialize(capabilities.Capabilities{
		AllowPrivileged: s.AllowPrivileged,
		// TODO(vmarmol): Implement support for HostNetworkSources.
		PrivilegedSources: capabilities.PrivilegedSources{
			HostNetworkSources: []string{},
			HostPIDSources:     []string{},
			HostIPCSources:     []string{},
		},
		PerConnectionBandwidthLimitBytesPerSec: s.MaxConnectionBytesPerSec,
	})

	// Setup tunneler if needed
	var tunneler genericapiserver.Tunneler
	var proxyDialerFn apiserver.ProxyDialerFunc
	if len(s.SSHUser) > 0 {
		// Get ssh key distribution func, if supported
		var installSSH genericapiserver.InstallSSHKey
		cloud, err := cloudprovider.InitCloudProvider(s.GenericServerRunOptions.CloudProvider, s.GenericServerRunOptions.CloudConfigFile)
		if err != nil {
			glog.Fatalf("Cloud provider could not be initialized: %v", err)
		}
		if cloud != nil {
			if instances, supported := cloud.Instances(); supported {
				installSSH = instances.AddSSHKeyToAllInstances
			}
		}
		if s.KubeletConfig.Port == 0 {
			glog.Fatalf("Must enable kubelet port if proxy ssh-tunneling is specified.")
		}
		// Set up the tunneler
		// TODO(cjcullen): If we want this to handle per-kubelet ports or other
		// kubelet listen-addresses, we need to plumb through options.
		healthCheckPath := &url.URL{
			Scheme: "https",
			Host:   net.JoinHostPort("127.0.0.1", strconv.FormatUint(uint64(s.KubeletConfig.Port), 10)),
			Path:   "healthz",
		}
		tunneler = genericapiserver.NewSSHTunneler(s.SSHUser, s.SSHKeyfile, healthCheckPath, installSSH)

		// Use the tunneler's dialer to connect to the kubelet
		s.KubeletConfig.Dial = tunneler.Dial
		// Use the tunneler's dialer when proxying to pods, services, and nodes
		proxyDialerFn = tunneler.Dial
	}

	// Proxying to pods and services is IP-based... don't expect to be able to verify the hostname
	proxyTLSClientConfig := &tls.Config{InsecureSkipVerify: true}

	if s.GenericServerRunOptions.StorageConfig.DeserializationCacheSize == 0 {
		// When size of cache is not explicitly set, estimate its size based on
		// target memory usage.
		glog.V(2).Infof("Initalizing deserialization cache size based on %dMB limit", s.GenericServerRunOptions.TargetRAMMB)

		// This is the heuristics that from memory capacity is trying to infer
		// the maximum number of nodes in the cluster and set cache sizes based
		// on that value.
		// From our documentation, we officially recomment 120GB machines for
		// 2000 nodes, and we scale from that point. Thus we assume ~60MB of
		// capacity per node.
		// TODO: We may consider deciding that some percentage of memory will
		// be used for the deserialization cache and divide it by the max object
		// size to compute its size. We may even go further and measure
		// collective sizes of the objects in the cache.
		clusterSize := s.GenericServerRunOptions.TargetRAMMB / 60
		s.GenericServerRunOptions.StorageConfig.DeserializationCacheSize = 25 * clusterSize
		if s.GenericServerRunOptions.StorageConfig.DeserializationCacheSize < 1000 {
			s.GenericServerRunOptions.StorageConfig.DeserializationCacheSize = 1000
		}
	}

	storageGroupsToEncodingVersion, err := s.GenericServerRunOptions.StorageGroupsToEncodingVersion()
	if err != nil {
		glog.Fatalf("error generating storage version map: %s", err)
	}
	storageFactory, err := genericapiserver.BuildDefaultStorageFactory(
		s.GenericServerRunOptions.StorageConfig, s.GenericServerRunOptions.DefaultStorageMediaType, api.Codecs,
		genericapiserver.NewDefaultResourceEncodingConfig(), storageGroupsToEncodingVersion,
		// FIXME: this GroupVersionResource override should be configurable
		[]schema.GroupVersionResource{batch.Resource("cronjobs").WithVersion("v2alpha1")},
		master.DefaultAPIResourceConfigSource(), s.GenericServerRunOptions.RuntimeConfig)
	if err != nil {
		glog.Fatalf("error in initializing storage factory: %s", err)
	}
	storageFactory.AddCohabitatingResources(batch.Resource("jobs"), extensions.Resource("jobs"))
//.........这里部分代码省略.........

func (c DelegatingAuthenticatorConfig) New() (authenticator.Request, *spec.SecurityDefinitions, error) {
	authenticators := []authenticator.Request{}
	securityDefinitions := spec.SecurityDefinitions{}

	// front-proxy first, then remote
	// Add the front proxy authenticator if requested
	if c.RequestHeaderConfig != nil {
		requestHeaderAuthenticator, err := headerrequest.NewSecure(
			c.RequestHeaderConfig.ClientCA,
			c.RequestHeaderConfig.AllowedClientNames,
			c.RequestHeaderConfig.UsernameHeaders,
			c.RequestHeaderConfig.GroupHeaders,
			c.RequestHeaderConfig.ExtraHeaderPrefixes,
		)
		if err != nil {
			return nil, nil, err
		}
		authenticators = append(authenticators, requestHeaderAuthenticator)
	}

	// x509 client cert auth
	if len(c.ClientCAFile) > 0 {
		clientCAs, err := cert.NewPool(c.ClientCAFile)
		if err != nil {
			return nil, nil, fmt.Errorf("unable to load client CA file %s: %v", c.ClientCAFile, err)
		}
		verifyOpts := x509.DefaultVerifyOptions()
		verifyOpts.Roots = clientCAs
		authenticators = append(authenticators, x509.New(verifyOpts, x509.CommonNameUserConversion))
	}

	if c.TokenAccessReviewClient != nil {
		tokenAuth, err := webhooktoken.NewFromInterface(c.TokenAccessReviewClient, c.CacheTTL)
		if err != nil {
			return nil, nil, err
		}
		authenticators = append(authenticators, bearertoken.New(tokenAuth))

		securityDefinitions["BearerToken"] = &spec.SecurityScheme{
			SecuritySchemeProps: spec.SecuritySchemeProps{
				Type:        "apiKey",
				Name:        "authorization",
				In:          "header",
				Description: "Bearer Token authentication",
			},
		}
	}

	if len(authenticators) == 0 {
		if c.Anonymous {
			return anonymous.NewAuthenticator(), &securityDefinitions, nil
		}
		return nil, nil, errors.New("No authentication method configured")
	}

	authenticator := group.NewGroupAdder(unionauth.New(authenticators...), []string{user.AllAuthenticated})
	if c.Anonymous {
		authenticator = unionauth.NewFailOnError(authenticator, anonymous.NewAuthenticator())
	}
	return authenticator, &securityDefinitions, nil
}