| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 k8s |
| |
| import ( |
| "context" |
| ) |
| |
| import ( |
| "k8s.io/apimachinery/pkg/runtime" |
| |
| "sigs.k8s.io/controller-runtime/pkg/webhook" |
| "sigs.k8s.io/controller-runtime/pkg/webhook/admission" |
| ) |
| |
| type AdmissionValidator interface { |
| webhook.AdmissionHandler |
| InjectDecoder(d *admission.Decoder) |
| Supports(admission.Request) bool |
| } |
| |
| type CompositeValidator struct { |
| Validators []AdmissionValidator |
| } |
| |
| func (c *CompositeValidator) AddValidator(validator AdmissionValidator) { |
| c.Validators = append(c.Validators, validator) |
| } |
| |
| func (c *CompositeValidator) IntoWebhook(scheme *runtime.Scheme) *admission.Webhook { |
| decoder := admission.NewDecoder(scheme) |
| for _, validator := range c.Validators { |
| validator.InjectDecoder(decoder) |
| } |
| |
| return &admission.Webhook{ |
| Handler: admission.HandlerFunc(func(ctx context.Context, req admission.Request) admission.Response { |
| for _, validator := range c.Validators { |
| if validator.Supports(req) { |
| resp := validator.Handle(ctx, req) |
| if !resp.Allowed { |
| return resp |
| } |
| } |
| } |
| return admission.Allowed("") |
| }), |
| } |
| } |