Exemple #1
0
func Run(serverOptions *genericoptions.ServerRunOptions, stopCh <-chan struct{}) error {
	// Set ServiceClusterIPRange
	_, serviceClusterIPRange, _ := net.ParseCIDR("10.0.0.0/24")
	serverOptions.ServiceClusterIPRange = *serviceClusterIPRange
	serverOptions.StorageConfig.ServerList = []string{"http://127.0.0.1:2379"}
	genericvalidation.ValidateRunOptions(serverOptions)
	genericvalidation.VerifyEtcdServersList(serverOptions)
	config := genericapiserver.NewConfig().ApplyOptions(serverOptions).Complete()
	if err := config.MaybeGenerateServingCerts(); err != nil {
		// this wasn't treated as fatal for this process before
		fmt.Printf("Error creating cert: %v", err)
	}

	config.Authorizer = authorizer.NewAlwaysAllowAuthorizer()
	config.SwaggerConfig = genericapiserver.DefaultSwaggerConfig()

	s, err := config.New()
	if err != nil {
		return fmt.Errorf("Error in bringing up the server: %v", err)
	}

	groupVersion := v1.SchemeGroupVersion
	groupName := groupVersion.Group
	groupMeta, err := registered.Group(groupName)
	if err != nil {
		return fmt.Errorf("%v", err)
	}
	storageFactory := newStorageFactory()
	storageConfig, err := storageFactory.NewConfig(unversioned.GroupResource{Group: groupName, Resource: "testtype"})
	if err != nil {
		return fmt.Errorf("Unable to get storage config: %v", err)
	}

	restStorageMap := map[string]rest.Storage{
		"testtypes": testgroupetcd.NewREST(storageConfig, generic.UndecoratedStorage),
	}
	apiGroupInfo := genericapiserver.APIGroupInfo{
		GroupMeta: *groupMeta,
		VersionedResourcesStorageMap: map[string]map[string]rest.Storage{
			groupVersion.Version: restStorageMap,
		},
		Scheme:               api.Scheme,
		NegotiatedSerializer: api.Codecs,
	}
	if err := s.InstallAPIGroup(&apiGroupInfo); err != nil {
		return fmt.Errorf("Error in installing API: %v", err)
	}
	s.PrepareRun().Run(stopCh)
	return nil
}
Exemple #2
0
func Run(serverOptions *genericoptions.ServerRunOptions) error {
	// Set ServiceClusterIPRange
	_, serviceClusterIPRange, _ := net.ParseCIDR("10.0.0.0/24")
	serverOptions.ServiceClusterIPRange = *serviceClusterIPRange
	serverOptions.StorageConfig.ServerList = []string{"http://127.0.0.1:2379"}
	genericvalidation.ValidateRunOptions(serverOptions)
	genericvalidation.VerifyEtcdServersList(serverOptions)
	config := genericapiserver.NewConfig(serverOptions)
	config.Authorizer = authorizer.NewAlwaysAllowAuthorizer()
	config.Serializer = api.Codecs
	s, err := config.New()
	if err != nil {
		return fmt.Errorf("Error in bringing up the server: %v", err)
	}

	groupVersion := v1.SchemeGroupVersion
	groupName := groupVersion.Group
	groupMeta, err := registered.Group(groupName)
	if err != nil {
		return fmt.Errorf("%v", err)
	}
	storageFactory := newStorageFactory()
	storageConfig, err := storageFactory.NewConfig(unversioned.GroupResource{Group: groupName, Resource: "testtype"})
	if err != nil {
		return fmt.Errorf("Unable to get storage config: %v", err)
	}

	restStorageMap := map[string]rest.Storage{
		"testtypes": testgroupetcd.NewREST(storageConfig, generic.UndecoratedStorage),
	}
	apiGroupInfo := genericapiserver.APIGroupInfo{
		GroupMeta: *groupMeta,
		VersionedResourcesStorageMap: map[string]map[string]rest.Storage{
			groupVersion.Version: restStorageMap,
		},
		Scheme:               api.Scheme,
		NegotiatedSerializer: api.Codecs,
	}
	if err := s.InstallAPIGroup(&apiGroupInfo); err != nil {
		return fmt.Errorf("Error in installing API: %v", err)
	}
	s.Run(serverOptions)
	return nil
}
Exemple #3
0
func buildAuthz(client authorizationclient.SubjectAccessReviewInterface, authz componentconfig.KubeletAuthorization) (authorizer.Authorizer, error) {
	switch authz.Mode {
	case componentconfig.KubeletAuthorizationModeAlwaysAllow:
		return alwaysallowauthorizer.NewAlwaysAllowAuthorizer(), nil

	case componentconfig.KubeletAuthorizationModeWebhook:
		if client == nil {
			return nil, errors.New("no client provided, cannot use webhook authorization")
		}
		return webhooksar.NewFromInterface(
			client,
			authz.Webhook.CacheAuthorizedTTL.Duration,
			authz.Webhook.CacheUnauthorizedTTL.Duration,
		)

	case "":
		return nil, fmt.Errorf("No authorization mode specified")

	default:
		return nil, fmt.Errorf("Unknown authorization mode %s", authz.Mode)

	}
}
// Returns a basic master config.
func NewMasterConfig() *master.Config {
	config := storagebackend.Config{
		ServerList: []string{GetEtcdURLFromEnv()},
		// This causes the integration tests to exercise the etcd
		// prefix code, so please don't change without ensuring
		// sufficient coverage in other ways.
		Prefix: uuid.New(),
	}

	negotiatedSerializer := NewSingleContentTypeSerializer(api.Scheme, testapi.Default.Codec(), runtime.ContentTypeJSON)

	storageFactory := genericapiserver.NewDefaultStorageFactory(config, runtime.ContentTypeJSON, negotiatedSerializer, genericapiserver.NewDefaultResourceEncodingConfig(), master.DefaultAPIResourceConfigSource())
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: api.GroupName, Resource: genericapiserver.AllResources},
		"",
		NewSingleContentTypeSerializer(api.Scheme, testapi.Default.Codec(), runtime.ContentTypeJSON))
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: autoscaling.GroupName, Resource: genericapiserver.AllResources},
		"",
		NewSingleContentTypeSerializer(api.Scheme, testapi.Autoscaling.Codec(), runtime.ContentTypeJSON))
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: batch.GroupName, Resource: genericapiserver.AllResources},
		"",
		NewSingleContentTypeSerializer(api.Scheme, testapi.Batch.Codec(), runtime.ContentTypeJSON))
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: apps.GroupName, Resource: genericapiserver.AllResources},
		"",
		NewSingleContentTypeSerializer(api.Scheme, testapi.Apps.Codec(), runtime.ContentTypeJSON))
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: extensions.GroupName, Resource: genericapiserver.AllResources},
		"",
		NewSingleContentTypeSerializer(api.Scheme, testapi.Extensions.Codec(), runtime.ContentTypeJSON))
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: policy.GroupName, Resource: genericapiserver.AllResources},
		"",
		NewSingleContentTypeSerializer(api.Scheme, testapi.Policy.Codec(), runtime.ContentTypeJSON))
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: rbac.GroupName, Resource: genericapiserver.AllResources},
		"",
		NewSingleContentTypeSerializer(api.Scheme, testapi.Rbac.Codec(), runtime.ContentTypeJSON))
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: certificates.GroupName, Resource: genericapiserver.AllResources},
		"",
		NewSingleContentTypeSerializer(api.Scheme, testapi.Certificates.Codec(), runtime.ContentTypeJSON))
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: storage.GroupName, Resource: genericapiserver.AllResources},
		"",
		NewSingleContentTypeSerializer(api.Scheme, testapi.Storage.Codec(), runtime.ContentTypeJSON))

	genericConfig := genericapiserver.NewConfig()
	genericConfig.APIResourceConfigSource = master.DefaultAPIResourceConfigSource()
	genericConfig.Authorizer = authorizer.NewAlwaysAllowAuthorizer()
	genericConfig.AdmissionControl = admit.NewAlwaysAdmit()
	genericConfig.EnableOpenAPISupport = true

	return &master.Config{
		GenericConfig:         genericConfig,
		StorageFactory:        storageFactory,
		EnableCoreControllers: true,
		EnableWatchCache:      true,
		KubeletClient:         kubeletclient.FakeKubeletClient{},
	}
}
Exemple #5
0
// New returns the right sort of union of multiple authorizer.Authorizer objects
// based on the authorizationMode or an error.
func (config AuthorizationConfig) New() (authorizer.Authorizer, error) {
	if len(config.AuthorizationModes) == 0 {
		return nil, errors.New("At least one authorization mode should be passed")
	}

	var authorizers []authorizer.Authorizer
	authorizerMap := make(map[string]bool)

	for _, authorizationMode := range config.AuthorizationModes {
		if authorizerMap[authorizationMode] {
			return nil, fmt.Errorf("Authorization mode %s specified more than once", authorizationMode)
		}
		// Keep cases in sync with constant list above.
		switch authorizationMode {
		case ModeAlwaysAllow:
			authorizers = append(authorizers, genericauthorizer.NewAlwaysAllowAuthorizer())
		case ModeAlwaysDeny:
			authorizers = append(authorizers, genericauthorizer.NewAlwaysDenyAuthorizer())
		case ModeABAC:
			if config.PolicyFile == "" {
				return nil, errors.New("ABAC's authorization policy file not passed")
			}
			abacAuthorizer, err := abac.NewFromFile(config.PolicyFile)
			if err != nil {
				return nil, err
			}
			authorizers = append(authorizers, abacAuthorizer)
		case ModeWebhook:
			if config.WebhookConfigFile == "" {
				return nil, errors.New("Webhook's configuration file not passed")
			}
			webhookAuthorizer, err := webhook.New(config.WebhookConfigFile,
				config.WebhookCacheAuthorizedTTL,
				config.WebhookCacheUnauthorizedTTL)
			if err != nil {
				return nil, err
			}
			authorizers = append(authorizers, webhookAuthorizer)
		case ModeRBAC:
			rbacAuthorizer := rbac.New(
				config.InformerFactory.Roles().Lister(),
				config.InformerFactory.RoleBindings().Lister(),
				config.InformerFactory.ClusterRoles().Lister(),
				config.InformerFactory.ClusterRoleBindings().Lister(),
			)
			authorizers = append(authorizers, rbacAuthorizer)
		default:
			return nil, fmt.Errorf("Unknown authorization mode %s specified", authorizationMode)
		}
		authorizerMap[authorizationMode] = true
	}

	if !authorizerMap[ModeABAC] && config.PolicyFile != "" {
		return nil, errors.New("Cannot specify --authorization-policy-file without mode ABAC")
	}
	if !authorizerMap[ModeWebhook] && config.WebhookConfigFile != "" {
		return nil, errors.New("Cannot specify --authorization-webhook-config-file without mode Webhook")
	}
	if !authorizerMap[ModeRBAC] && config.RBACSuperUser != "" {
		return nil, errors.New("Cannot specify --authorization-rbac-super-user without mode RBAC")
	}

	return union.New(authorizers...), nil
}
Exemple #6
0
func (serverOptions *ServerRunOptions) Run(stopCh <-chan struct{}) error {
	// Set ServiceClusterIPRange
	_, serviceClusterIPRange, _ := net.ParseCIDR("10.0.0.0/24")
	serverOptions.GenericServerRunOptions.ServiceClusterIPRange = *serviceClusterIPRange
	serverOptions.Etcd.StorageConfig.ServerList = []string{"http://127.0.0.1:2379"}

	genericvalidation.ValidateRunOptions(serverOptions.GenericServerRunOptions)
	if errs := serverOptions.Etcd.Validate(); len(errs) > 0 {
		return utilerrors.NewAggregate(errs)
	}
	if errs := serverOptions.SecureServing.Validate(); len(errs) > 0 {
		return utilerrors.NewAggregate(errs)
	}
	if errs := serverOptions.InsecureServing.Validate("insecure-port"); len(errs) > 0 {
		return utilerrors.NewAggregate(errs)
	}
	if err := serverOptions.SecureServing.MaybeDefaultWithSelfSignedCerts(serverOptions.GenericServerRunOptions.AdvertiseAddress.String()); err != nil {
		glog.Fatalf("Error creating self-signed certificates: %v", err)
	}

	config := genericapiserver.NewConfig().
		ApplyOptions(serverOptions.GenericServerRunOptions).
		ApplyInsecureServingOptions(serverOptions.InsecureServing)

	if _, err := config.ApplySecureServingOptions(serverOptions.SecureServing); err != nil {
		return fmt.Errorf("failed to configure https: %s", err)
	}
	if _, err := config.ApplyAuthenticationOptions(serverOptions.Authentication); err != nil {
		return fmt.Errorf("failed to configure authentication: %s", err)
	}

	config.Authorizer = authorizer.NewAlwaysAllowAuthorizer()
	s, err := config.Complete().New()
	if err != nil {
		return fmt.Errorf("Error in bringing up the server: %v", err)
	}

	groupVersion := v1.SchemeGroupVersion
	groupName := groupVersion.Group
	groupMeta, err := registered.Group(groupName)
	if err != nil {
		return fmt.Errorf("%v", err)
	}
	storageFactory := newStorageFactory()
	storageConfig, err := storageFactory.NewConfig(schema.GroupResource{Group: groupName, Resource: "testtype"})
	if err != nil {
		return fmt.Errorf("Unable to get storage config: %v", err)
	}

	testTypeOpts := generic.RESTOptions{
		StorageConfig:           storageConfig,
		Decorator:               generic.UndecoratedStorage,
		ResourcePrefix:          "testtypes",
		DeleteCollectionWorkers: 1,
	}

	restStorageMap := map[string]rest.Storage{
		"testtypes": testgroupetcd.NewREST(testTypeOpts),
	}
	apiGroupInfo := genericapiserver.APIGroupInfo{
		GroupMeta: *groupMeta,
		VersionedResourcesStorageMap: map[string]map[string]rest.Storage{
			groupVersion.Version: restStorageMap,
		},
		Scheme:               api.Scheme,
		NegotiatedSerializer: api.Codecs,
	}
	if err := s.InstallAPIGroup(&apiGroupInfo); err != nil {
		return fmt.Errorf("Error in installing API: %v", err)
	}
	s.PrepareRun().Run(stopCh)
	return nil
}
Exemple #7
0
// Returns a basic master config.
func NewMasterConfig() *master.Config {
	config := storagebackend.Config{
		ServerList: []string{GetEtcdURLFromEnv()},
		// This causes the integration tests to exercise the etcd
		// prefix code, so please don't change without ensuring
		// sufficient coverage in other ways.
		Prefix: uuid.New(),
	}

	info, _ := runtime.SerializerInfoForMediaType(api.Codecs.SupportedMediaTypes(), runtime.ContentTypeJSON)
	ns := NewSingleContentTypeSerializer(api.Scheme, info)

	storageFactory := genericapiserver.NewDefaultStorageFactory(config, runtime.ContentTypeJSON, ns, genericapiserver.NewDefaultResourceEncodingConfig(), master.DefaultAPIResourceConfigSource())
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: api.GroupName, Resource: genericapiserver.AllResources},
		"",
		ns)
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: autoscaling.GroupName, Resource: genericapiserver.AllResources},
		"",
		ns)
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: batch.GroupName, Resource: genericapiserver.AllResources},
		"",
		ns)
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: apps.GroupName, Resource: genericapiserver.AllResources},
		"",
		ns)
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: extensions.GroupName, Resource: genericapiserver.AllResources},
		"",
		ns)
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: policy.GroupName, Resource: genericapiserver.AllResources},
		"",
		ns)
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: rbac.GroupName, Resource: genericapiserver.AllResources},
		"",
		ns)
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: certificates.GroupName, Resource: genericapiserver.AllResources},
		"",
		ns)
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: storage.GroupName, Resource: genericapiserver.AllResources},
		"",
		ns)

	genericConfig := genericapiserver.NewConfig()
	kubeVersion := version.Get()
	genericConfig.Version = &kubeVersion
	genericConfig.APIResourceConfigSource = master.DefaultAPIResourceConfigSource()
	genericConfig.Authorizer = authorizer.NewAlwaysAllowAuthorizer()
	genericConfig.AdmissionControl = admit.NewAlwaysAdmit()
	genericConfig.EnableMetrics = true

	return &master.Config{
		GenericConfig:         genericConfig,
		StorageFactory:        storageFactory,
		EnableCoreControllers: true,
		EnableWatchCache:      true,
		KubeletClientConfig:   kubeletclient.KubeletClientConfig{Port: 10250},
		APIServerServicePort:  443,
		MasterCount:           1,
	}
}
Exemple #8
0
// Returns a basic master config.
func NewMasterConfig() *master.Config {
	config := storagebackend.Config{
		ServerList: []string{GetEtcdURLFromEnv()},
		// This causes the integration tests to exercise the etcd
		// prefix code, so please don't change without ensuring
		// sufficient coverage in other ways.
		Prefix: uuid.New(),
	}

	negotiatedSerializer := NewSingleContentTypeSerializer(api.Scheme, testapi.Default.Codec(), runtime.ContentTypeJSON)

	storageFactory := genericapiserver.NewDefaultStorageFactory(config, runtime.ContentTypeJSON, negotiatedSerializer, genericapiserver.NewDefaultResourceEncodingConfig(), master.DefaultAPIResourceConfigSource())
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: api.GroupName, Resource: genericapiserver.AllResources},
		"",
		NewSingleContentTypeSerializer(api.Scheme, testapi.Default.Codec(), runtime.ContentTypeJSON))
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: autoscaling.GroupName, Resource: genericapiserver.AllResources},
		"",
		NewSingleContentTypeSerializer(api.Scheme, testapi.Autoscaling.Codec(), runtime.ContentTypeJSON))
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: batch.GroupName, Resource: genericapiserver.AllResources},
		"",
		NewSingleContentTypeSerializer(api.Scheme, testapi.Batch.Codec(), runtime.ContentTypeJSON))
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: apps.GroupName, Resource: genericapiserver.AllResources},
		"",
		NewSingleContentTypeSerializer(api.Scheme, testapi.Apps.Codec(), runtime.ContentTypeJSON))
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: extensions.GroupName, Resource: genericapiserver.AllResources},
		"",
		NewSingleContentTypeSerializer(api.Scheme, testapi.Extensions.Codec(), runtime.ContentTypeJSON))
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: policy.GroupName, Resource: genericapiserver.AllResources},
		"",
		NewSingleContentTypeSerializer(api.Scheme, testapi.Policy.Codec(), runtime.ContentTypeJSON))
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: rbac.GroupName, Resource: genericapiserver.AllResources},
		"",
		NewSingleContentTypeSerializer(api.Scheme, testapi.Rbac.Codec(), runtime.ContentTypeJSON))
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: certificates.GroupName, Resource: genericapiserver.AllResources},
		"",
		NewSingleContentTypeSerializer(api.Scheme, testapi.Certificates.Codec(), runtime.ContentTypeJSON))
	storageFactory.SetSerializer(
		unversioned.GroupResource{Group: storage.GroupName, Resource: genericapiserver.AllResources},
		"",
		NewSingleContentTypeSerializer(api.Scheme, testapi.Storage.Codec(), runtime.ContentTypeJSON))

	return &master.Config{
		GenericConfig: &genericapiserver.Config{
			APIResourceConfigSource: master.DefaultAPIResourceConfigSource(),
			APIPrefix:               "/api",
			APIGroupPrefix:          "/apis",
			Authorizer:              authorizer.NewAlwaysAllowAuthorizer(),
			AdmissionControl:        admit.NewAlwaysAdmit(),
			Serializer:              api.Codecs,
			// Set those values to avoid annoying warnings in logs.
			ServiceClusterIPRange: parseCIDROrDie("10.0.0.0/24"),
			ServiceNodePortRange:  utilnet.PortRange{Base: 30000, Size: 2768},
			EnableVersion:         true,
			OpenAPIDefinitions:    openapi.OpenAPIDefinitions,
			EnableOpenAPISupport:  true,
		},
		StorageFactory:   storageFactory,
		EnableWatchCache: true,
		KubeletClient:    kubeletclient.FakeKubeletClient{},
	}
}
func BuildKubernetesMasterConfig(options configapi.MasterConfig, requestContextMapper kapi.RequestContextMapper, kubeClient *kclient.Client, informers shared.InformerFactory, admissionControl admission.Interface, originAuthenticator authenticator.Request) (*MasterConfig, error) {
	if options.KubernetesMasterConfig == nil {
		return nil, errors.New("insufficient information to build KubernetesMasterConfig")
	}

	kubeletClientConfig := configapi.GetKubeletClientConfig(options)
	kubeletClient, err := kubeletclient.NewStaticKubeletClient(kubeletClientConfig)
	if err != nil {
		return nil, fmt.Errorf("unable to configure Kubelet client: %v", err)
	}

	// in-order list of plug-ins that should intercept admission decisions
	// TODO: Push node environment support to upstream in future

	podEvictionTimeout, err := time.ParseDuration(options.KubernetesMasterConfig.PodEvictionTimeout)
	if err != nil {
		return nil, fmt.Errorf("unable to parse PodEvictionTimeout: %v", err)
	}

	// Defaults are tested in TestCMServerDefaults
	cmserver := cmapp.NewCMServer()
	// Adjust defaults
	cmserver.Address = ""                   // no healthz endpoint
	cmserver.Port = 0                       // no healthz endpoint
	cmserver.EnableGarbageCollector = false // disabled until we add the controller
	cmserver.PodEvictionTimeout = unversioned.Duration{Duration: podEvictionTimeout}
	cmserver.VolumeConfiguration.EnableDynamicProvisioning = options.VolumeConfig.DynamicProvisioningEnabled

	// resolve extended arguments
	// TODO: this should be done in config validation (along with the above) so we can provide
	// proper errors
	if err := cmdflags.Resolve(options.KubernetesMasterConfig.ControllerArguments, cmserver.AddFlags); len(err) > 0 {
		return nil, kerrors.NewAggregate(err)
	}

	// resolve extended arguments
	// TODO: this should be done in config validation (along with the above) so we can provide
	// proper errors
	schedulerserver := scheduleroptions.NewSchedulerServer()
	schedulerserver.PolicyConfigFile = options.KubernetesMasterConfig.SchedulerConfigFile
	if err := cmdflags.Resolve(options.KubernetesMasterConfig.SchedulerArguments, schedulerserver.AddFlags); len(err) > 0 {
		return nil, kerrors.NewAggregate(err)
	}

	cloud, err := cloudprovider.InitCloudProvider(cmserver.CloudProvider, cmserver.CloudConfigFile)
	if err != nil {
		return nil, err
	}
	if cloud != nil {
		glog.V(2).Infof("Successfully initialized cloud provider: %q from the config file: %q\n", cmserver.CloudProvider, cmserver.CloudConfigFile)
	}

	var proxyClientCerts []tls.Certificate
	if len(options.KubernetesMasterConfig.ProxyClientInfo.CertFile) > 0 {
		clientCert, err := tls.LoadX509KeyPair(
			options.KubernetesMasterConfig.ProxyClientInfo.CertFile,
			options.KubernetesMasterConfig.ProxyClientInfo.KeyFile,
		)
		if err != nil {
			return nil, err
		}
		proxyClientCerts = append(proxyClientCerts, clientCert)
	}

	server, storageFactory, err := BuildDefaultAPIServer(options)
	if err != nil {
		return nil, err
	}

	// Preserve previous behavior of using the first non-loopback address
	// TODO: Deprecate this behavior and just require a valid value to be passed in
	publicAddress := net.ParseIP(options.KubernetesMasterConfig.MasterIP)
	if publicAddress == nil || publicAddress.IsUnspecified() || publicAddress.IsLoopback() {
		hostIP, err := knet.ChooseHostInterface()
		if err != nil {
			glog.Fatalf("Unable to find suitable network address.error='%v'. Set the masterIP directly to avoid this error.", err)
		}
		publicAddress = hostIP
		glog.Infof("Will report %v as public IP address.", publicAddress)
	}

	m := &master.Config{
		Config: &genericapiserver.Config{

			PublicAddress: publicAddress,
			ReadWritePort: server.SecurePort,

			Authenticator:    originAuthenticator, // this is used to fulfill the tokenreviews endpoint which is used by node authentication
			Authorizer:       authorizer.NewAlwaysAllowAuthorizer(),
			AdmissionControl: admissionControl,

			StorageFactory: storageFactory,

			ServiceClusterIPRange: (*net.IPNet)(&server.ServiceClusterIPRange),
			ServiceNodePortRange:  server.ServiceNodePortRange,

			RequestContextMapper: requestContextMapper,

			APIResourceConfigSource: getAPIResourceConfig(options),
			APIPrefix:               server.APIPrefix,
			APIGroupPrefix:          server.APIGroupPrefix,

			MasterCount: server.MasterCount,

			// Set the TLS options for proxying to pods and services
			// Proxying to nodes uses the kubeletClient TLS config (so can provide a different cert, and verify the node hostname)
			ProxyTLSClientConfig: &tls.Config{
				// Proxying to pods and services cannot verify hostnames, since they are contacted on randomly allocated IPs
				InsecureSkipVerify: true,
				Certificates:       proxyClientCerts,
			},

			Serializer: kapi.Codecs,

			EnableLogsSupport:         server.EnableLogsSupport,
			EnableProfiling:           server.EnableProfiling,
			EnableWatchCache:          server.EnableWatchCache,
			MasterServiceNamespace:    server.MasterServiceNamespace,
			ExternalHost:              server.ExternalHost,
			MinRequestTimeout:         server.MinRequestTimeout,
			KubernetesServiceNodePort: server.KubernetesServiceNodePort,
		},

		EventTTL: server.EventTTL,

		KubeletClient: kubeletClient,

		EnableCoreControllers: true,

		DeleteCollectionWorkers: server.DeleteCollectionWorkers,
	}

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

	if options.DNSConfig != nil {
		_, dnsPortStr, err := net.SplitHostPort(options.DNSConfig.BindAddress)
		if err != nil {
			return nil, fmt.Errorf("unable to parse DNS bind address %s: %v", options.DNSConfig.BindAddress, err)
		}
		dnsPort, err := strconv.Atoi(dnsPortStr)
		if err != nil {
			return nil, fmt.Errorf("invalid DNS port: %v", err)
		}
		m.ExtraServicePorts = append(m.ExtraServicePorts,
			kapi.ServicePort{Name: "dns", Port: 53, Protocol: kapi.ProtocolUDP, TargetPort: intstr.FromInt(dnsPort)},
			kapi.ServicePort{Name: "dns-tcp", Port: 53, Protocol: kapi.ProtocolTCP, TargetPort: intstr.FromInt(dnsPort)},
		)
		m.ExtraEndpointPorts = append(m.ExtraEndpointPorts,
			kapi.EndpointPort{Name: "dns", Port: int32(dnsPort), Protocol: kapi.ProtocolUDP},
			kapi.EndpointPort{Name: "dns-tcp", Port: int32(dnsPort), Protocol: kapi.ProtocolTCP},
		)
	}

	kmaster := &MasterConfig{
		Options:    *options.KubernetesMasterConfig,
		KubeClient: kubeClient,

		Master:            m,
		ControllerManager: cmserver,
		CloudProvider:     cloud,
		SchedulerServer:   schedulerserver,
		Informers:         informers,
	}

	return kmaster, nil
}