mirror of
https://github.com/kubernetes-sigs/prometheus-adapter.git
synced 2026-04-06 01:38:10 +00:00
129 lines
4 KiB
Go
129 lines
4 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package apiserver
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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/sample-apiserver/pkg/apis/wardle"
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"k8s.io/sample-apiserver/pkg/apis/wardle/install"
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wardleregistry "k8s.io/sample-apiserver/pkg/registry"
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fischerstorage "k8s.io/sample-apiserver/pkg/registry/wardle/fischer"
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flunderstorage "k8s.io/sample-apiserver/pkg/registry/wardle/flunder"
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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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)
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func init() {
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install.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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// Place you custom config here.
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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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// WardleServer contains state for a Kubernetes cluster master/api server.
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type WardleServer 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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// New returns a new instance of WardleServer from the given config.
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func (c completedConfig) New() (*WardleServer, error) {
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genericServer, err := c.GenericConfig.New("sample-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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s := &WardleServer{
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GenericAPIServer: genericServer,
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}
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apiGroupInfo := genericapiserver.NewDefaultAPIGroupInfo(wardle.GroupName, Scheme, metav1.ParameterCodec, Codecs)
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v1alpha1storage := map[string]rest.Storage{}
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v1alpha1storage["flunders"] = wardleregistry.RESTInPeace(flunderstorage.NewREST(Scheme, c.GenericConfig.RESTOptionsGetter))
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v1alpha1storage["fischers"] = wardleregistry.RESTInPeace(fischerstorage.NewREST(Scheme, c.GenericConfig.RESTOptionsGetter))
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apiGroupInfo.VersionedResourcesStorageMap["v1alpha1"] = v1alpha1storage
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v1beta1storage := map[string]rest.Storage{}
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v1beta1storage["flunders"] = wardleregistry.RESTInPeace(flunderstorage.NewREST(Scheme, c.GenericConfig.RESTOptionsGetter))
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apiGroupInfo.VersionedResourcesStorageMap["v1beta1"] = v1beta1storage
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if err := s.GenericAPIServer.InstallAPIGroup(&apiGroupInfo); err != nil {
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return nil, err
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}
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return s, nil
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}
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