Golang registered.Group函数代码示例

// New creates a Kubernetes client for the given config. This client works with pods,
// replication controllers, daemons, and services. It allows operations such as list, get, update
// and delete on these objects. An error is returned if the provided configuration
// is not valid.
func New(c *Config) (*Client, error) {
	config := *c
	if err := SetKubernetesDefaults(&config); err != nil {
		return nil, err
	}
	client, err := RESTClientFor(&config)
	if err != nil {
		return nil, err
	}

	discoveryConfig := *c
	discoveryClient, err := NewDiscoveryClient(&discoveryConfig)
	if err != nil {
		return nil, err
	}

	if _, err := registered.Group(extensions.GroupName); err != nil {
		return &Client{RESTClient: client, ExtensionsClient: nil, DiscoveryClient: discoveryClient}, nil
	}
	experimentalConfig := *c
	experimentalClient, err := NewExtensions(&experimentalConfig)
	if err != nil {
		return nil, err
	}

	return &Client{RESTClient: client, ExtensionsClient: experimentalClient, DiscoveryClient: discoveryClient}, nil
}

func setConfigDefaults(config *unversioned.Config) error {
	// if testgroup group is not registered, return an error
	g, err := registered.Group("testgroup")
	if err != nil {
		return err
	}
	config.APIPath = "/apis"
	if config.UserAgent == "" {
		config.UserAgent = unversioned.DefaultKubernetesUserAgent()
	}
	// TODO: Unconditionally set the config.Version, until we fix the config.
	//if config.Version == "" {
	copyGroupVersion := g.GroupVersion
	config.GroupVersion = &copyGroupVersion
	//}

	versionInterfaces, err := g.InterfacesFor(*config.GroupVersion)
	if err != nil {
		return fmt.Errorf("Testgroup API version '%s' is not recognized (valid values: %s)",
			config.GroupVersion, g.GroupVersions)
	}
	config.Codec = versionInterfaces.Codec
	if config.QPS == 0 {
		config.QPS = 5
	}
	if config.Burst == 0 {
		config.Burst = 10
	}
	return nil
}

func main() {
	config := genericapiserver.Config{
		EnableIndex:    true,
		APIPrefix:      "/api",
		APIGroupPrefix: "/apis",
	}
	s := genericapiserver.New(&config)

	groupVersion := v1.SchemeGroupVersion
	groupName := groupVersion.Group
	groupMeta, err := registered.Group(groupName)
	if err != nil {
		glog.Fatalf("%v", err)
	}
	storageDestinations, err := newStorageDestinations(groupName, groupMeta)
	if err != nil {
		glog.Fatalf("Unable to init etcd: %v", err)
	}
	restStorageMap := map[string]rest.Storage{
		"testtypes": testgroupetcd.NewREST(storageDestinations.Get(groupName, "testtype"), s.StorageDecorator()),
	}
	apiGroupInfo := genericapiserver.APIGroupInfo{
		GroupMeta: *groupMeta,
		VersionedResourcesStorageMap: map[string]map[string]rest.Storage{
			groupVersion.Version: restStorageMap,
		},
	}
	if err := s.InstallAPIGroups([]genericapiserver.APIGroupInfo{apiGroupInfo}); err != nil {
		glog.Fatalf("Error in installing API: %v", err)
	}
	s.Run(genericapiserver.NewServerRunOptions())
}

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

	versionInterfaces, err := g.InterfacesFor(*config.GroupVersion)
	if err != nil {
		return fmt.Errorf("Extensions API group/version '%v' is not recognized (valid values: %v)",
			config.GroupVersion, registered.GroupOrDie(extensions.GroupName).GroupVersions)
	}
	config.Codec = versionInterfaces.Codec
	if config.QPS == 0 {
		config.QPS = 5
	}
	if config.Burst == 0 {
		config.Burst = 10
	}
	return nil
}

func (c *MasterConfig) defaultAPIGroupVersion() *apiserver.APIGroupVersion {
	var restMapper meta.MultiRESTMapper
	seenGroups := sets.String{}
	for _, gv := range registered.EnabledVersions() {
		if seenGroups.Has(gv.Group) {
			continue
		}
		seenGroups.Insert(gv.Group)

		groupMeta, err := registered.Group(gv.Group)
		if err != nil {
			continue
		}
		restMapper = meta.MultiRESTMapper(append(restMapper, groupMeta.RESTMapper))
	}

	statusMapper := meta.NewDefaultRESTMapper([]unversioned.GroupVersion{kubeapiv1.SchemeGroupVersion}, registered.GroupOrDie(kapi.GroupName).InterfacesFor)
	statusMapper.Add(kubeapiv1.SchemeGroupVersion.WithKind("Status"), meta.RESTScopeRoot)
	restMapper = meta.MultiRESTMapper(append(restMapper, statusMapper))

	return &apiserver.APIGroupVersion{
		Root: OpenShiftAPIPrefix,

		Mapper: restMapper,

		Creater:   kapi.Scheme,
		Typer:     kapi.Scheme,
		Convertor: kapi.Scheme,
		Linker:    registered.GroupOrDie("").SelfLinker,

		Admit:                       c.AdmissionControl,
		Context:                     c.getRequestContextMapper(),
		SubresourceGroupVersionKind: map[string]unversioned.GroupVersionKind{},
	}
}

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

	codec, ok := api.Codecs.SerializerForFileExtension("json")
	if !ok {
		return fmt.Errorf("unable to find serializer for JSON")
	}
	config.Codec = codec

	if config.QPS == 0 {
		config.QPS = 5
	}
	if config.Burst == 0 {
		config.Burst = 10
	}
	return nil
}

func setConfigDefaults(config *unversioned.Config) error {
	// if legacy group is not registered, return an error
	g, err := registered.Group("")
	if err != nil {
		return err
	}
	config.APIPath = "/api"
	if config.UserAgent == "" {
		config.UserAgent = unversioned.DefaultKubernetesUserAgent()
	}
	// TODO: Unconditionally set the config.Version, until we fix the config.
	//if config.Version == "" {
	copyGroupVersion := g.GroupVersion
	config.GroupVersion = &copyGroupVersion
	//}

	config.Codec = api.Codecs.LegacyCodec(*config.GroupVersion)
	if config.QPS == 0 {
		config.QPS = 5
	}
	if config.Burst == 0 {
		config.Burst = 10
	}
	return nil
}

func setBatchDefaults(config *restclient.Config, gv *unversioned.GroupVersion) error {
	// if batch group is not registered, return an error
	g, err := registered.Group(batch.GroupName)
	if err != nil {
		return err
	}
	config.APIPath = defaultAPIPath
	if config.UserAgent == "" {
		config.UserAgent = restclient.DefaultKubernetesUserAgent()
	}
	// TODO: Unconditionally set the config.Version, until we fix the config.
	//if config.Version == "" {
	copyGroupVersion := g.GroupVersion
	if gv != nil {
		copyGroupVersion = *gv
	}
	config.GroupVersion = &copyGroupVersion
	//}

	config.Codec = api.Codecs.LegacyCodec(*config.GroupVersion)
	config.NegotiatedSerializer = api.Codecs
	if config.QPS == 0 {
		config.QPS = 5
	}
	if config.Burst == 0 {
		config.Burst = 10
	}
	return nil
}

func interfacesFor(version unversioned.GroupVersion) (*meta.VersionInterfaces, error) {
	switch version {
	case v1.SchemeGroupVersion:
		return &meta.VersionInterfaces{
			ObjectConvertor:  kapi.Scheme,
			MetadataAccessor: accessor,
		}, nil

	case docker10.SchemeGroupVersion:
		return &meta.VersionInterfaces{
			ObjectConvertor:  kapi.Scheme,
			MetadataAccessor: accessor,
		}, nil

	case dockerpre012.SchemeGroupVersion:
		return &meta.VersionInterfaces{
			ObjectConvertor:  kapi.Scheme,
			MetadataAccessor: accessor,
		}, nil

	default:
		g, _ := registered.Group(api.GroupName)
		return nil, fmt.Errorf("unsupported storage version: %s (valid: %v)", version, g.GroupVersions)
	}
}

func setNamespace(typer runtime.ObjectTyper, obj runtime.Object, namespace string) error {
	itemMeta, err := meta.Accessor(obj)
	if err != nil {
		return err
	}
	gvks, _, err := typer.ObjectKinds(obj)
	if err != nil {
		return err
	}
	group, err := registered.Group(gvks[0].Group)
	if err != nil {
		return err
	}
	mapping, err := group.RESTMapper.RESTMapping(gvks[0].GroupKind(), gvks[0].Version)
	if err != nil {
		return err
	}
	switch mapping.Scope.Name() {
	case meta.RESTScopeNameNamespace:
		if len(itemMeta.GetNamespace()) == 0 {
			itemMeta.SetNamespace(namespace)
		}
	}

	return nil
}

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

func setPolicyDefaults(config *restclient.Config) error {
	g, err := registered.Group(policy.GroupName)
	if err != nil {
		return err
	}
	config.APIPath = defaultAPIPath
	if config.UserAgent == "" {
		config.UserAgent = restclient.DefaultKubernetesUserAgent()
	}
	// TODO: Unconditionally set the config.Version, until we fix the config.
	//if config.Version == "" {
	copyGroupVersion := g.GroupVersion
	config.GroupVersion = &copyGroupVersion
	//}

	config.Codec = api.Codecs.LegacyCodec(*config.GroupVersion)
	config.NegotiatedSerializer = api.Codecs
	if config.QPS == 0 {
		config.QPS = 5
	}
	if config.Burst == 0 {
		config.Burst = 10
	}
	return nil
}

// checkNamespace makes sure that the scope of gvk matches ns. It
// returns an error if namespace is empty but gvk is a namespaced
// kind, or if ns is non-empty and gvk is a namespaced kind.
func checkNamespace(gvk schema.GroupVersionKind, ns string) error {
	group, err := registered.Group(gvk.Group)
	if err != nil {
		return err
	}
	mapping, err := group.RESTMapper.RESTMapping(gvk.GroupKind(), gvk.Version)
	if err != nil {
		return err
	}
	switch mapping.Scope.Name() {
	case meta.RESTScopeNameRoot:
		if ns != "" {
			return fmt.Errorf("namespace specified for a non-namespaced kind %s", gvk)
		}
	case meta.RESTScopeNameNamespace:
		if ns == "" {
			// Skipping this check for Events, since
			// controllers emit events that have no namespace,
			// even though Event is a namespaced resource.
			if gvk.Kind != "Event" {
				return fmt.Errorf("no namespace specified for a namespaced kind %s", gvk)
			}
		}
	}

	return nil
}

func setConfigDefaults(config *restclient.Config) error {
	// if core group is not registered, return an error
	g, err := registered.Group("")
	if err != nil {
		return err
	}
	config.APIPath = "/api"
	if config.UserAgent == "" {
		config.UserAgent = restclient.DefaultKubernetesUserAgent()
	}
	// TODO: Unconditionally set the config.Version, until we fix the config.
	//if config.Version == "" {
	copyGroupVersion := g.GroupVersion
	config.GroupVersion = &copyGroupVersion
	//}

	config.NegotiatedSerializer = api.Codecs

	if config.QPS == 0 {
		config.QPS = 5
	}
	if config.Burst == 0 {
		config.Burst = 10
	}
	return nil
}

func setAutoscalingDefaults(config *Config) error {
	// if autoscaling group is not registered, return an error
	g, err := registered.Group(autoscaling.GroupName)
	if err != nil {
		return err
	}
	config.APIPath = defaultAPIPath
	if config.UserAgent == "" {
		config.UserAgent = DefaultKubernetesUserAgent()
	}
	// TODO: Unconditionally set the config.Version, until we fix the config.
	//if config.Version == "" {
	copyGroupVersion := g.GroupVersion
	config.GroupVersion = &copyGroupVersion
	//}

	config.Codec = api.Codecs.LegacyCodec(*config.GroupVersion)
	if config.QPS == 0 {
		config.QPS = 5
	}
	if config.Burst == 0 {
		config.Burst = 10
	}
	return nil
}