vendor files

vendor/k8s.io/kubernetes/pkg/kubeapiserver/admission/initializer.go

@@ -0,0 +1,116 @@
+/*
+Copyright 2016 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package admission
+
+import (
+	"k8s.io/apimachinery/pkg/api/meta"
+	"k8s.io/apiserver/pkg/admission"
+	webhookconfig "k8s.io/apiserver/pkg/admission/plugin/webhook/config"
+	"k8s.io/apiserver/pkg/authorization/authorizer"
+	clientset "k8s.io/client-go/kubernetes"
+	"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
+	informers "k8s.io/kubernetes/pkg/client/informers/informers_generated/internalversion"
+	"k8s.io/kubernetes/pkg/quota"
+)
+
+// TODO add a `WantsToRun` which takes a stopCh.  Might make it generic.
+
+// WantsInternalKubeClientSet defines a function which sets ClientSet for admission plugins that need it
+type WantsInternalKubeClientSet interface {
+	SetInternalKubeClientSet(internalclientset.Interface)
+	admission.InitializationValidator
+}
+
+// WantsInternalKubeInformerFactory defines a function which sets InformerFactory for admission plugins that need it
+type WantsInternalKubeInformerFactory interface {
+	SetInternalKubeInformerFactory(informers.SharedInformerFactory)
+	admission.InitializationValidator
+}
+
+// WantsCloudConfig defines a function which sets CloudConfig for admission plugins that need it.
+type WantsCloudConfig interface {
+	SetCloudConfig([]byte)
+}
+
+// WantsRESTMapper defines a function which sets RESTMapper for admission plugins that need it.
+type WantsRESTMapper interface {
+	SetRESTMapper(meta.RESTMapper)
+}
+
+// WantsQuotaConfiguration defines a function which sets quota configuration for admission plugins that need it.
+type WantsQuotaConfiguration interface {
+	SetQuotaConfiguration(quota.Configuration)
+	admission.InitializationValidator
+}
+
+// PluginInitializer is used for initialization of the Kubernetes specific admission plugins.
+type PluginInitializer struct {
+	internalClient                    internalclientset.Interface
+	externalClient                    clientset.Interface
+	informers                         informers.SharedInformerFactory
+	authorizer                        authorizer.Authorizer
+	cloudConfig                       []byte
+	restMapper                        meta.RESTMapper
+	quotaConfiguration                quota.Configuration
+	serviceResolver                   webhookconfig.ServiceResolver
+	authenticationInfoResolverWrapper webhookconfig.AuthenticationInfoResolverWrapper
+}
+
+var _ admission.PluginInitializer = &PluginInitializer{}
+
+// NewPluginInitializer constructs new instance of PluginInitializer
+// TODO: switch these parameters to use the builder pattern or just make them
+// all public, this construction method is pointless boilerplate.
+func NewPluginInitializer(
+	internalClient internalclientset.Interface,
+	sharedInformers informers.SharedInformerFactory,
+	cloudConfig []byte,
+	restMapper meta.RESTMapper,
+	quotaConfiguration quota.Configuration,
+) *PluginInitializer {
+	return &PluginInitializer{
+		internalClient:     internalClient,
+		informers:          sharedInformers,
+		cloudConfig:        cloudConfig,
+		restMapper:         restMapper,
+		quotaConfiguration: quotaConfiguration,
+	}
+}
+
+// Initialize checks the initialization interfaces implemented by each plugin
+// and provide the appropriate initialization data
+func (i *PluginInitializer) Initialize(plugin admission.Interface) {
+	if wants, ok := plugin.(WantsInternalKubeClientSet); ok {
+		wants.SetInternalKubeClientSet(i.internalClient)
+	}
+
+	if wants, ok := plugin.(WantsInternalKubeInformerFactory); ok {
+		wants.SetInternalKubeInformerFactory(i.informers)
+	}
+
+	if wants, ok := plugin.(WantsCloudConfig); ok {
+		wants.SetCloudConfig(i.cloudConfig)
+	}
+
+	if wants, ok := plugin.(WantsRESTMapper); ok {
+		wants.SetRESTMapper(i.restMapper)
+	}
+
+	if wants, ok := plugin.(WantsQuotaConfiguration); ok {
+		wants.SetQuotaConfiguration(i.quotaConfiguration)
+	}
+}