117 lines
3.5 KiB
Go
117 lines
3.5 KiB
Go
package aggregatedapiserver
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import (
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apimachinery/pkg/runtime/serializer"
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"k8s.io/apimachinery/pkg/version"
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"k8s.io/apiserver/pkg/registry/rest"
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genericapiserver "k8s.io/apiserver/pkg/server"
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"k8s.io/client-go/kubernetes"
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"k8s.io/klog/v2"
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clusterapis "github.com/karmada-io/karmada/pkg/apis/cluster"
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clusterinstall "github.com/karmada-io/karmada/pkg/apis/cluster/install"
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clusterstorage "github.com/karmada-io/karmada/pkg/registry/cluster/storage"
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)
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var (
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// Scheme defines methods for serializing and deserializing API objects.
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Scheme = runtime.NewScheme()
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// Codecs provides methods for retrieving codecs and serializers for specific
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// versions and content types.
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Codecs = serializer.NewCodecFactory(Scheme)
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// ParameterCodec handles versioning of objects that are converted to query parameters.
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ParameterCodec = runtime.NewParameterCodec(Scheme)
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)
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func init() {
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clusterinstall.Install(Scheme)
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// we need to add the options to empty v1
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// TODO fix the server code to avoid this
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metav1.AddToGroupVersion(Scheme, schema.GroupVersion{Version: "v1"})
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// TODO: keep the generic API server from wanting this
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unversioned := schema.GroupVersion{Group: "", Version: "v1"}
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Scheme.AddUnversionedTypes(unversioned,
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&metav1.Status{},
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&metav1.APIVersions{},
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&metav1.APIGroupList{},
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&metav1.APIGroup{},
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&metav1.APIResourceList{},
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)
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}
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// ExtraConfig holds custom apiserver config
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type ExtraConfig struct {
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// Add custom config if necessary.
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}
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// Config defines the config for the apiserver
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type Config struct {
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GenericConfig *genericapiserver.RecommendedConfig
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ExtraConfig ExtraConfig
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}
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// APIServer contains state for karmada aggregated-apiserver.
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type APIServer struct {
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GenericAPIServer *genericapiserver.GenericAPIServer
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}
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type completedConfig struct {
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GenericConfig genericapiserver.CompletedConfig
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ExtraConfig *ExtraConfig
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}
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// CompletedConfig embeds a private pointer that cannot be instantiated outside of this package.
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type CompletedConfig struct {
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*completedConfig
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}
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// Complete fills in any fields not set that are required to have valid data. It's mutating the receiver.
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func (cfg *Config) Complete() CompletedConfig {
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c := completedConfig{
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cfg.GenericConfig.Complete(),
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&cfg.ExtraConfig,
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}
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c.GenericConfig.Version = &version.Info{
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Major: "1",
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Minor: "0",
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}
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return CompletedConfig{&c}
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}
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func (c completedConfig) New(kubeClient kubernetes.Interface) (*APIServer, error) {
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genericServer, err := c.GenericConfig.New("aggregated-apiserver", genericapiserver.NewEmptyDelegate())
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if err != nil {
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return nil, err
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}
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server := &APIServer{
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GenericAPIServer: genericServer,
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}
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apiGroupInfo := genericapiserver.NewDefaultAPIGroupInfo(clusterapis.GroupName, Scheme, ParameterCodec, Codecs)
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clusterStorage, err := clusterstorage.NewStorage(Scheme, kubeClient, c.GenericConfig.RESTOptionsGetter)
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if err != nil {
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klog.Errorf("unable to create REST storage for a resource due to %v, will die", err)
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return nil, err
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}
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v1alpha1cluster := map[string]rest.Storage{}
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v1alpha1cluster["clusters"] = clusterStorage.Cluster
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v1alpha1cluster["clusters/status"] = clusterStorage.Status
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v1alpha1cluster["clusters/proxy"] = clusterStorage.Proxy
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apiGroupInfo.VersionedResourcesStorageMap["v1alpha1"] = v1alpha1cluster
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if err = server.GenericAPIServer.InstallAPIGroup(&apiGroupInfo); err != nil {
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return nil, err
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}
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return server, nil
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}
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