1 // Copyright 2022 Google LLC 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package webhook 16 17 import ( 18 "context" 19 20 "sigs.k8s.io/controller-runtime/pkg/webhook/admission" 21 ) 22 23 // abandonOnCRDUninstallWebhook is a validating webhook that ensures synchronously that if a CRD 24 // managed by KCC is deleted, the accompanying controller is set to abandon any resources that are 25 // attempted to be deleted. 26 type abandonOnCRDUninstallWebhook struct{} 27 28 // This webhook is now a no-op and will soon be removed as deletiondefender does not need this layer of protection any 29 // longer. The reason to keep it for now is that the operator does not yet remove the old webhook registration. The 30 // operator will be updated to remove this webhook registration and then the code can be deleted. 31 func (a *abandonOnCRDUninstallWebhook) Handle(ctx context.Context, req admission.Request) admission.Response { 32 return admission.ValidationResponse(true, "no-op: this webhook is deprecated") 33 } 34