mirror of
https://github.com/ceph/ceph-csi.git
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3af1e26d7c
Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
77 lines
2.1 KiB
Go
77 lines
2.1 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 mutating
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import (
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"context"
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"io"
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"k8s.io/apiserver/pkg/admission"
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"k8s.io/apiserver/pkg/admission/configuration"
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"k8s.io/apiserver/pkg/admission/plugin/webhook/generic"
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)
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const (
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// PluginName indicates the name of admission plug-in
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PluginName = "MutatingAdmissionWebhook"
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)
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// Register registers a plugin
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func Register(plugins *admission.Plugins) {
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plugins.Register(PluginName, func(configFile io.Reader) (admission.Interface, error) {
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plugin, err := NewMutatingWebhook(configFile)
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if err != nil {
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return nil, err
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}
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return plugin, nil
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})
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}
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// Plugin is an implementation of admission.Interface.
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type Plugin struct {
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*generic.Webhook
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}
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var _ admission.MutationInterface = &Plugin{}
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// NewMutatingWebhook returns a generic admission webhook plugin.
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func NewMutatingWebhook(configFile io.Reader) (*Plugin, error) {
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handler := admission.NewHandler(admission.Connect, admission.Create, admission.Delete, admission.Update)
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p := &Plugin{}
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var err error
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p.Webhook, err = generic.NewWebhook(handler, configFile, configuration.NewMutatingWebhookConfigurationManager, newMutatingDispatcher(p))
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if err != nil {
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return nil, err
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}
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return p, nil
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}
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// ValidateInitialization implements the InitializationValidator interface.
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func (a *Plugin) ValidateInitialization() error {
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if err := a.Webhook.ValidateInitialization(); err != nil {
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return err
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}
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return nil
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}
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// Admit makes an admission decision based on the request attributes.
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func (a *Plugin) Admit(ctx context.Context, attr admission.Attributes, o admission.ObjectInterfaces) error {
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return a.Webhook.Dispatch(ctx, attr, o)
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}
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