Exemplo n.º 1
0
func buildRBACResources(authorizerRBACSuperUser string) RESTStorageProvider {
	return func(apiResourceConfigSource genericapiserver.APIResourceConfigSource, restOptionsGetter RESTOptionsGetter) (genericapiserver.APIGroupInfo, bool) {
		apiGroupInfo := NewDefaultAPIGroupInfo(rbac.GroupName)

		storageForVersion := func(version unversioned.GroupVersion) map[string]rest.Storage {
			once := new(sync.Once)
			var authorizationRuleResolver rbacvalidation.AuthorizationRuleResolver
			newRuleValidator := func() rbacvalidation.AuthorizationRuleResolver {
				once.Do(func() {
					authorizationRuleResolver = rbacvalidation.NewDefaultRuleResolver(
						role.NewRegistry(roleetcd.NewREST(restOptionsGetter(rbac.Resource("roles")))),
						rolebinding.NewRegistry(rolebindingetcd.NewREST(restOptionsGetter(rbac.Resource("rolebindings")))),
						clusterrole.NewRegistry(clusterroleetcd.NewREST(restOptionsGetter(rbac.Resource("clusterroles")))),
						clusterrolebinding.NewRegistry(clusterrolebindingetcd.NewREST(restOptionsGetter(rbac.Resource("clusterrolebindings")))),
					)
				})
				return authorizationRuleResolver
			}

			storage := map[string]rest.Storage{}
			if apiResourceConfigSource.ResourceEnabled(version.WithResource("roles")) {
				rolesStorage := roleetcd.NewREST(restOptionsGetter(rbac.Resource("roles")))
				storage["roles"] = rolepolicybased.NewStorage(rolesStorage, newRuleValidator(), authorizerRBACSuperUser)
			}
			if apiResourceConfigSource.ResourceEnabled(version.WithResource("rolebindings")) {
				roleBindingsStorage := rolebindingetcd.NewREST(restOptionsGetter(rbac.Resource("rolebindings")))
				storage["rolebindings"] = rolebindingpolicybased.NewStorage(roleBindingsStorage, newRuleValidator(), authorizerRBACSuperUser)
			}
			if apiResourceConfigSource.ResourceEnabled(version.WithResource("clusterroles")) {
				clusterRolesStorage := clusterroleetcd.NewREST(restOptionsGetter(rbac.Resource("clusterroles")))
				storage["clusterroles"] = clusterrolepolicybased.NewStorage(clusterRolesStorage, newRuleValidator(), authorizerRBACSuperUser)
			}
			if apiResourceConfigSource.ResourceEnabled(version.WithResource("clusterrolebindings")) {
				clusterRoleBindingsStorage := clusterrolebindingetcd.NewREST(restOptionsGetter(rbac.Resource("clusterrolebindings")))
				storage["clusterrolebindings"] = clusterrolebindingpolicybased.NewStorage(clusterRoleBindingsStorage, newRuleValidator(), authorizerRBACSuperUser)
			}
			return storage
		}

		if apiResourceConfigSource.AnyResourcesForVersionEnabled(rbacapi.SchemeGroupVersion) {
			apiGroupInfo.VersionedResourcesStorageMap[rbacapi.SchemeGroupVersion.Version] = storageForVersion(rbacapi.SchemeGroupVersion)
			apiGroupInfo.GroupMeta.GroupVersion = rbacapi.SchemeGroupVersion
		}

		return apiGroupInfo, true
	}
}
Exemplo n.º 2
0
func (p *RBACRESTStorageProvider) v1alpha1Storage(apiResourceConfigSource genericapiserver.APIResourceConfigSource, restOptionsGetter RESTOptionsGetter) map[string]rest.Storage {
	version := rbacapiv1alpha1.SchemeGroupVersion

	once := new(sync.Once)
	var authorizationRuleResolver rbacvalidation.AuthorizationRuleResolver
	newRuleValidator := func() rbacvalidation.AuthorizationRuleResolver {
		once.Do(func() {
			authorizationRuleResolver = rbacvalidation.NewDefaultRuleResolver(
				role.NewRegistry(roleetcd.NewREST(restOptionsGetter(rbac.Resource("roles")))),
				rolebinding.NewRegistry(rolebindingetcd.NewREST(restOptionsGetter(rbac.Resource("rolebindings")))),
				clusterrole.NewRegistry(clusterroleetcd.NewREST(restOptionsGetter(rbac.Resource("clusterroles")))),
				clusterrolebinding.NewRegistry(clusterrolebindingetcd.NewREST(restOptionsGetter(rbac.Resource("clusterrolebindings")))),
			)
		})
		return authorizationRuleResolver
	}

	storage := map[string]rest.Storage{}
	if apiResourceConfigSource.ResourceEnabled(version.WithResource("roles")) {
		rolesStorage := roleetcd.NewREST(restOptionsGetter(rbac.Resource("roles")))
		storage["roles"] = rolepolicybased.NewStorage(rolesStorage, newRuleValidator(), p.AuthorizerRBACSuperUser)
	}
	if apiResourceConfigSource.ResourceEnabled(version.WithResource("rolebindings")) {
		roleBindingsStorage := rolebindingetcd.NewREST(restOptionsGetter(rbac.Resource("rolebindings")))
		storage["rolebindings"] = rolebindingpolicybased.NewStorage(roleBindingsStorage, newRuleValidator(), p.AuthorizerRBACSuperUser)
	}
	if apiResourceConfigSource.ResourceEnabled(version.WithResource("clusterroles")) {
		clusterRolesStorage := clusterroleetcd.NewREST(restOptionsGetter(rbac.Resource("clusterroles")))
		storage["clusterroles"] = clusterrolepolicybased.NewStorage(clusterRolesStorage, newRuleValidator(), p.AuthorizerRBACSuperUser)

		p.postStartHook = newPostStartHook(clusterRolesStorage)
	}
	if apiResourceConfigSource.ResourceEnabled(version.WithResource("clusterrolebindings")) {
		clusterRoleBindingsStorage := clusterrolebindingetcd.NewREST(restOptionsGetter(rbac.Resource("clusterrolebindings")))
		storage["clusterrolebindings"] = clusterrolebindingpolicybased.NewStorage(clusterRoleBindingsStorage, newRuleValidator(), p.AuthorizerRBACSuperUser)
	}
	return storage
}
Exemplo n.º 3
0
func (m *Master) getRBACResources(c *Config) map[string]rest.Storage {
	version := rbacapi.SchemeGroupVersion

	once := new(sync.Once)
	var authorizationRuleResolver rbacvalidation.AuthorizationRuleResolver
	newRuleValidator := func() rbacvalidation.AuthorizationRuleResolver {
		once.Do(func() {
			authorizationRuleResolver = rbacvalidation.NewDefaultRuleResolver(
				role.NewRegistry(roleetcd.NewREST(m.GetRESTOptionsOrDie(c, rbac.Resource("roles")))),
				rolebinding.NewRegistry(rolebindingetcd.NewREST(m.GetRESTOptionsOrDie(c, rbac.Resource("rolebindings")))),
				clusterrole.NewRegistry(clusterroleetcd.NewREST(m.GetRESTOptionsOrDie(c, rbac.Resource("clusterroles")))),
				clusterrolebinding.NewRegistry(clusterrolebindingetcd.NewREST(m.GetRESTOptionsOrDie(c, rbac.Resource("clusterrolebindings")))),
			)
		})
		return authorizationRuleResolver
	}

	storage := map[string]rest.Storage{}
	if c.APIResourceConfigSource.ResourceEnabled(version.WithResource("roles")) {
		rolesStorage := roleetcd.NewREST(m.GetRESTOptionsOrDie(c, rbac.Resource("roles")))
		storage["roles"] = rolepolicybased.NewStorage(rolesStorage, newRuleValidator(), c.AuthorizerRBACSuperUser)
	}
	if c.APIResourceConfigSource.ResourceEnabled(version.WithResource("rolebindings")) {
		roleBindingsStorage := rolebindingetcd.NewREST(m.GetRESTOptionsOrDie(c, rbac.Resource("rolebindings")))
		storage["rolebindings"] = rolebindingpolicybased.NewStorage(roleBindingsStorage, newRuleValidator(), c.AuthorizerRBACSuperUser)
	}
	if c.APIResourceConfigSource.ResourceEnabled(version.WithResource("clusterroles")) {
		clusterRolesStorage := clusterroleetcd.NewREST(m.GetRESTOptionsOrDie(c, rbac.Resource("clusterroles")))
		storage["clusterroles"] = clusterrolepolicybased.NewStorage(clusterRolesStorage, newRuleValidator(), c.AuthorizerRBACSuperUser)
	}
	if c.APIResourceConfigSource.ResourceEnabled(version.WithResource("clusterrolebindings")) {
		clusterRoleBindingsStorage := clusterrolebindingetcd.NewREST(m.GetRESTOptionsOrDie(c, rbac.Resource("clusterrolebindings")))
		storage["clusterrolebindings"] = clusterrolebindingpolicybased.NewStorage(clusterRoleBindingsStorage, newRuleValidator(), c.AuthorizerRBACSuperUser)
	}
	return storage
}
Exemplo n.º 4
0
func newRBACAuthorizer(t *testing.T, superUser string, config *master.Config) authorizer.Authorizer {
	newRESTOptions := func(resource string) generic.RESTOptions {
		storageInterface, err := config.StorageFactory.New(rbacapi.Resource(resource))
		if err != nil {
			t.Fatalf("failed to get storage: %v", err)
		}
		return generic.RESTOptions{Storage: storageInterface, Decorator: generic.UndecoratedStorage}
	}

	roleRegistry := role.NewRegistry(roleetcd.NewREST(newRESTOptions("roles")))
	roleBindingRegistry := rolebinding.NewRegistry(rolebindingetcd.NewREST(newRESTOptions("rolebindings")))
	clusterRoleRegistry := clusterrole.NewRegistry(clusterroleetcd.NewREST(newRESTOptions("clusterroles")))
	clusterRoleBindingRegistry := clusterrolebinding.NewRegistry(clusterrolebindingetcd.NewREST(newRESTOptions("clusterrolebindings")))
	return rbac.New(roleRegistry, roleBindingRegistry, clusterRoleRegistry, clusterRoleBindingRegistry, superUser)
}
Exemplo n.º 5
0
func TestNew(t *testing.T) {
	// NOTE(ericchiang): Can't get this strategy to do reads. Get cryptic "client: etcd cluster is unavailable or misconfigured"
	// Writes work fine, so use to test storing initial data.
	server := etcdtesting.NewEtcdTestClientServer(t)
	defer server.Terminate(t)

	codec := testapi.Groups[rbac.GroupName].StorageCodec()
	getRESTOptions := func(resource string) generic.RESTOptions {
		cacheSize := etcdtest.DeserializationCacheSize
		storage := etcd.NewEtcdStorage(server.Client, codec, resource, false, cacheSize)
		return generic.RESTOptions{Storage: storage, Decorator: generic.UndecoratedStorage}
	}

	roleRegistry := role.NewRegistry(roleetcd.NewREST(getRESTOptions("roles")))
	roleBindingRegistry := rolebinding.NewRegistry(rolebindingetcd.NewREST(getRESTOptions("rolebindings")))
	clusterRoleRegistry := clusterrole.NewRegistry(clusterroleetcd.NewREST(getRESTOptions("clusterroles")))
	clusterRoleBindingRegistry := clusterrolebinding.NewRegistry(clusterrolebindingetcd.NewREST(getRESTOptions("clusterrolebindings")))
	_, err := New(roleRegistry, roleBindingRegistry, clusterRoleRegistry, clusterRoleBindingRegistry, "")
	if err != nil {
		t.Fatalf("failed to create authorizer: %v", err)
	}
}
// 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)
	}

	if s.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.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.TargetRAMMB / 60
		s.StorageConfig.DeserializationCacheSize = 25 * clusterSize
		if s.StorageConfig.DeserializationCacheSize < 1000 {
			s.StorageConfig.DeserializationCacheSize = 1000
		}
	}

	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")
		}
	}

	var serviceAccountGetter serviceaccount.ServiceAccountTokenGetter
	if s.ServiceAccountLookup {
		// If we need to look up service accounts and tokens,
		// go directly to etcd to avoid recursive auth insanity
		storageConfig, err := storageFactory.NewConfig(api.Resource("serviceaccounts"))
		if err != nil {
			glog.Fatalf("Unable to get serviceaccounts storage: %v", err)
		}
		serviceAccountGetter = serviceaccountcontroller.NewGetterFromStorageInterface(storageConfig, storageFactory.ResourcePrefix(api.Resource("serviceaccounts")), storageFactory.ResourcePrefix(api.Resource("secrets")))
	}

	authenticator, err := authenticator.New(authenticator.AuthenticatorConfig{
		BasicAuthFile:               s.BasicAuthFile,
		ClientCAFile:                s.ClientCAFile,
		TokenAuthFile:               s.TokenAuthFile,
		OIDCIssuerURL:               s.OIDCIssuerURL,
		OIDCClientID:                s.OIDCClientID,
		OIDCCAFile:                  s.OIDCCAFile,
		OIDCUsernameClaim:           s.OIDCUsernameClaim,
		OIDCGroupsClaim:             s.OIDCGroupsClaim,
		ServiceAccountKeyFile:       s.ServiceAccountKeyFile,
		ServiceAccountLookup:        s.ServiceAccountLookup,
		ServiceAccountTokenGetter:   serviceAccountGetter,
		KeystoneURL:                 s.KeystoneURL,
		WebhookTokenAuthnConfigFile: s.WebhookTokenAuthnConfigFile,
		WebhookTokenAuthnCacheTTL:   s.WebhookTokenAuthnCacheTTL,
	})

	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")))
	}

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

	admissionControlPluginNames := strings.Split(s.AdmissionControl, ",")
	client, err := s.NewSelfClient()
	if err != nil {
		glog.Errorf("Failed to create clientset: %v", err)
	}
	sharedInformers := informers.NewSharedInformerFactory(client, 10*time.Minute)
	pluginInitializer := admission.NewPluginInitializer(sharedInformers)

	admissionController, err := admission.NewFromPlugins(client, admissionControlPluginNames, s.AdmissionControlConfigFile, pluginInitializer)
	if err != nil {
		glog.Fatalf("Failed to initialize plugins: %v", err)
	}

	genericConfig := genericapiserver.NewConfig(s.ServerRunOptions)
	// TODO: Move the following to generic api server as well.
	genericConfig.StorageFactory = storageFactory
	genericConfig.Authenticator = authenticator
	genericConfig.SupportsBasicAuth = len(s.BasicAuthFile) > 0
	genericConfig.Authorizer = authorizer
	genericConfig.AuthorizerRBACSuperUser = s.AuthorizationRBACSuperUser
	genericConfig.AdmissionControl = admissionController
	genericConfig.APIResourceConfigSource = storageFactory.APIResourceConfigSource
	genericConfig.MasterServiceNamespace = s.MasterServiceNamespace
	genericConfig.ProxyDialer = proxyDialerFn
	genericConfig.ProxyTLSClientConfig = proxyTLSClientConfig
	genericConfig.Serializer = api.Codecs
	genericConfig.OpenAPIInfo.Title = "Kubernetes"

	config := &master.Config{
		Config:                  genericConfig,
		EnableCoreControllers:   true,
		DeleteCollectionWorkers: s.DeleteCollectionWorkers,
		EventTTL:                s.EventTTL,
		KubeletClient:           kubeletClient,

		Tunneler: tunneler,
	}

	if s.EnableWatchCache {
		glog.V(2).Infof("Initalizing cache sizes based on %dMB limit", s.TargetRAMMB)
		cachesize.InitializeWatchCacheSizes(s.TargetRAMMB)
		cachesize.SetWatchCacheSizes(s.WatchCacheSizes)
	}

	m, err := master.New(config)
	if err != nil {
		return err
	}

	sharedInformers.Start(wait.NeverStop)
	m.Run(s.ServerRunOptions)
	return nil
}
Exemplo n.º 7
0
// 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)
	}

	authenticator, err := authenticator.New(authenticator.AuthenticatorConfig{
		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")))
	}

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

	admissionControlPluginNames := strings.Split(s.AdmissionControl, ",")
	client, err := s.NewSelfClient()
	if err != nil {
		glog.Errorf("Failed to create clientset: %v", err)
	}
	sharedInformers := informers.NewSharedInformerFactory(client, 10*time.Minute)
	pluginInitializer := admission.NewPluginInitializer(sharedInformers)

	admissionController, err := admission.NewFromPlugins(client, admissionControlPluginNames, s.AdmissionControlConfigFile, pluginInitializer)
	if err != nil {
		glog.Fatalf("Failed to initialize plugins: %v", err)
	}
	genericConfig := genericapiserver.NewConfig(s.ServerRunOptions)
	// TODO: Move the following to generic api server as well.
	genericConfig.StorageFactory = storageFactory
	genericConfig.Authenticator = authenticator
	genericConfig.SupportsBasicAuth = len(s.BasicAuthFile) > 0
	genericConfig.Authorizer = authorizer
	genericConfig.AuthorizerRBACSuperUser = s.AuthorizationRBACSuperUser
	genericConfig.AdmissionControl = admissionController
	genericConfig.APIResourceConfigSource = storageFactory.APIResourceConfigSource
	genericConfig.MasterServiceNamespace = s.MasterServiceNamespace
	genericConfig.Serializer = api.Codecs

	// TODO: Move this to generic api server (Need to move the command line flag).
	if s.EnableWatchCache {
		cachesize.InitializeWatchCacheSizes(s.TargetRAMMB)
		cachesize.SetWatchCacheSizes(s.WatchCacheSizes)
	}

	m, err := genericConfig.New()
	if err != nil {
		return err
	}

	routes.UIRedirect{}.Install(m.Mux, m.HandlerContainer)
	routes.Logs{}.Install(m.Mux, m.HandlerContainer)

	installFederationAPIs(s, m, storageFactory)
	installCoreAPIs(s, m, storageFactory)
	installExtensionsAPIs(s, m, storageFactory)

	sharedInformers.Start(wait.NeverStop)
	m.Run(s.ServerRunOptions)
	return nil
}
Exemplo n.º 8
0
// Run runs the specified APIServer.  This should never exit.
func Run(s *options.APIServer) error {
	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("Failure 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,
		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")
		}
	}

	var serviceAccountGetter serviceaccount.ServiceAccountTokenGetter
	if s.ServiceAccountLookup {
		// If we need to look up service accounts and tokens,
		// go directly to etcd to avoid recursive auth insanity
		storage, err := storageFactory.New(api.Resource("serviceaccounts"))
		if err != nil {
			glog.Fatalf("Unable to get serviceaccounts storage: %v", err)
		}
		serviceAccountGetter = serviceaccountcontroller.NewGetterFromStorageInterface(storage)
	}

	authenticator, err := authenticator.New(authenticator.AuthenticatorConfig{
		BasicAuthFile:               s.BasicAuthFile,
		ClientCAFile:                s.ClientCAFile,
		TokenAuthFile:               s.TokenAuthFile,
		OIDCIssuerURL:               s.OIDCIssuerURL,
		OIDCClientID:                s.OIDCClientID,
		OIDCCAFile:                  s.OIDCCAFile,
		OIDCUsernameClaim:           s.OIDCUsernameClaim,
		OIDCGroupsClaim:             s.OIDCGroupsClaim,
		ServiceAccountKeyFile:       s.ServiceAccountKeyFile,
		ServiceAccountLookup:        s.ServiceAccountLookup,
		ServiceAccountTokenGetter:   serviceAccountGetter,
		KeystoneURL:                 s.KeystoneURL,
		WebhookTokenAuthnConfigFile: s.WebhookTokenAuthnConfigFile,
		WebhookTokenAuthnCacheTTL:   s.WebhookTokenAuthnCacheTTL,
	})

	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 := apiserver.AuthorizationConfig{
		PolicyFile:                  s.AuthorizationConfig.PolicyFile,
		WebhookConfigFile:           s.AuthorizationConfig.WebhookConfigFile,
		WebhookCacheAuthorizedTTL:   s.AuthorizationConfig.WebhookCacheAuthorizedTTL,
		WebhookCacheUnauthorizedTTL: s.AuthorizationConfig.WebhookCacheUnauthorizedTTL,
		RBACSuperUser:               s.AuthorizationConfig.RBACSuperUser,
	}

	if modeEnabled(apiserver.ModeRBAC) {
		mustGetRESTOptions := func(resource string) generic.RESTOptions {
			s, err := storageFactory.New(api.Resource(resource))
			if err != nil {
				glog.Fatalf("Unable to get %s storage: %v", resource, err)
			}
			return generic.RESTOptions{Storage: s, Decorator: generic.UndecoratedStorage}
		}

		// 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")))
	}

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

	admissionControlPluginNames := strings.Split(s.AdmissionControl, ",")
	client, err := s.NewSelfClient()
	if err != nil {
		glog.Errorf("Failed to create clientset: %v", err)
	}
	admissionController := admission.NewFromPlugins(client, admissionControlPluginNames, s.AdmissionControlConfigFile)

	genericConfig := genericapiserver.NewConfig(s.ServerRunOptions)
	// TODO: Move the following to generic api server as well.
	genericConfig.StorageFactory = storageFactory
	genericConfig.Authenticator = authenticator
	genericConfig.SupportsBasicAuth = len(s.BasicAuthFile) > 0
	genericConfig.Authorizer = authorizer
	genericConfig.AuthorizerRBACSuperUser = s.AuthorizationConfig.RBACSuperUser
	genericConfig.AdmissionControl = admissionController
	genericConfig.APIResourceConfigSource = storageFactory.APIResourceConfigSource
	genericConfig.MasterServiceNamespace = s.MasterServiceNamespace
	genericConfig.ProxyDialer = proxyDialerFn
	genericConfig.ProxyTLSClientConfig = proxyTLSClientConfig
	genericConfig.Serializer = api.Codecs

	config := &master.Config{
		Config:                  genericConfig,
		EnableCoreControllers:   true,
		DeleteCollectionWorkers: s.DeleteCollectionWorkers,
		EventTTL:                s.EventTTL,
		KubeletClient:           kubeletClient,

		Tunneler: tunneler,
	}

	if s.EnableWatchCache {
		cachesize.SetWatchCacheSizes(s.WatchCacheSizes)
	}

	m, err := master.New(config)
	if err != nil {
		return err
	}

	m.Run(s.ServerRunOptions)
	return nil
}