mirror of
https://github.com/kubernetes-sigs/prometheus-adapter.git
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a293b2bf94
Travis seems to be having issues pulling deps, so we'll have to check in the vendor directory and prevent the makefile from trying to regenerate it normally.
108 lines
3.4 KiB
Go
108 lines
3.4 KiB
Go
/*
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Copyright 2017 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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genericapiserver "k8s.io/apiserver/pkg/server"
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"github.com/kubernetes-incubator/custom-metrics-apiserver/pkg/provider"
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cminstall "k8s.io/metrics/pkg/apis/custom_metrics/install"
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eminstall "k8s.io/metrics/pkg/apis/external_metrics/install"
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)
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var (
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Scheme = runtime.NewScheme()
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Codecs = serializer.NewCodecFactory(Scheme)
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)
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func init() {
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cminstall.Install(Scheme)
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eminstall.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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type Config struct {
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GenericConfig *genericapiserver.Config
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}
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// CustomMetricsAdapterServer contains state for a Kubernetes cluster master/api server.
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type CustomMetricsAdapterServer struct {
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GenericAPIServer *genericapiserver.GenericAPIServer
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customMetricsProvider provider.CustomMetricsProvider
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externalMetricsProvider provider.ExternalMetricsProvider
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}
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type completedConfig struct {
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genericapiserver.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 (c *Config) Complete() completedConfig {
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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.GenericConfig.Complete(nil)}
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}
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// New returns a new instance of CustomMetricsAdapterServer from the given config.
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// name is used to differentiate for logging.
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// Each of the arguments: customMetricsProvider, externalMetricsProvider can be set either to
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// a provider implementation, or to nil to disable one of the APIs.
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func (c completedConfig) New(name string, customMetricsProvider provider.CustomMetricsProvider, externalMetricsProvider provider.ExternalMetricsProvider) (*CustomMetricsAdapterServer, error) {
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genericServer, err := c.CompletedConfig.New(name, genericapiserver.NewEmptyDelegate()) // completion is done in Complete, no need for a second time
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if err != nil {
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return nil, err
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}
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s := &CustomMetricsAdapterServer{
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GenericAPIServer: genericServer,
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customMetricsProvider: customMetricsProvider,
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externalMetricsProvider: externalMetricsProvider,
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}
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if customMetricsProvider != nil {
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if err := s.InstallCustomMetricsAPI(); err != nil {
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return nil, err
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}
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}
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if externalMetricsProvider != nil {
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if err := s.InstallExternalMetricsAPI(); err != nil {
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return nil, err
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}
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}
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return s, nil
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}
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