mirror of
https://github.com/ceph/ceph-csi.git
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87 lines
2.9 KiB
Go
87 lines
2.9 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 admission
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import (
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"k8s.io/apimachinery/pkg/api/meta"
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"k8s.io/apiserver/pkg/admission"
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"k8s.io/apiserver/pkg/authorization/authorizer"
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"k8s.io/apiserver/pkg/util/webhook"
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quota "k8s.io/kubernetes/pkg/quota/v1"
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)
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// TODO add a `WantsToRun` which takes a stopCh. Might make it generic.
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// WantsCloudConfig defines a function which sets CloudConfig for admission plugins that need it.
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type WantsCloudConfig interface {
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SetCloudConfig([]byte)
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}
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// WantsRESTMapper defines a function which sets RESTMapper for admission plugins that need it.
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type WantsRESTMapper interface {
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SetRESTMapper(meta.RESTMapper)
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}
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// WantsQuotaConfiguration defines a function which sets quota configuration for admission plugins that need it.
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type WantsQuotaConfiguration interface {
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SetQuotaConfiguration(quota.Configuration)
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admission.InitializationValidator
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}
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// PluginInitializer is used for initialization of the Kubernetes specific admission plugins.
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type PluginInitializer struct {
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authorizer authorizer.Authorizer
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cloudConfig []byte
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restMapper meta.RESTMapper
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quotaConfiguration quota.Configuration
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serviceResolver webhook.ServiceResolver
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authenticationInfoResolverWrapper webhook.AuthenticationInfoResolverWrapper
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}
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var _ admission.PluginInitializer = &PluginInitializer{}
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// NewPluginInitializer constructs new instance of PluginInitializer
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// TODO: switch these parameters to use the builder pattern or just make them
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// all public, this construction method is pointless boilerplate.
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func NewPluginInitializer(
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cloudConfig []byte,
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restMapper meta.RESTMapper,
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quotaConfiguration quota.Configuration,
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) *PluginInitializer {
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return &PluginInitializer{
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cloudConfig: cloudConfig,
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restMapper: restMapper,
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quotaConfiguration: quotaConfiguration,
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}
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}
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// Initialize checks the initialization interfaces implemented by each plugin
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// and provide the appropriate initialization data
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func (i *PluginInitializer) Initialize(plugin admission.Interface) {
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if wants, ok := plugin.(WantsCloudConfig); ok {
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wants.SetCloudConfig(i.cloudConfig)
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}
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if wants, ok := plugin.(WantsRESTMapper); ok {
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wants.SetRESTMapper(i.restMapper)
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}
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if wants, ok := plugin.(WantsQuotaConfiguration); ok {
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wants.SetQuotaConfiguration(i.quotaConfiguration)
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}
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}
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