Zack Williams | e940c7a | 2019-08-21 14:25:39 -0700 | [diff] [blame] | 1 | /* |
| 2 | Copyright 2017 The Kubernetes Authors. |
| 3 | |
| 4 | Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | you may not use this file except in compliance with the License. |
| 6 | You may obtain a copy of the License at |
| 7 | |
| 8 | http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | |
| 10 | Unless required by applicable law or agreed to in writing, software |
| 11 | distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | See the License for the specific language governing permissions and |
| 14 | limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package v1 |
| 18 | |
| 19 | import ( |
| 20 | "k8s.io/apimachinery/pkg/runtime/schema" |
| 21 | ) |
| 22 | |
| 23 | // IsControlledBy checks if the object has a controllerRef set to the given owner |
| 24 | func IsControlledBy(obj Object, owner Object) bool { |
| 25 | ref := GetControllerOf(obj) |
| 26 | if ref == nil { |
| 27 | return false |
| 28 | } |
| 29 | return ref.UID == owner.GetUID() |
| 30 | } |
| 31 | |
| 32 | // GetControllerOf returns a pointer to a copy of the controllerRef if controllee has a controller |
| 33 | func GetControllerOf(controllee Object) *OwnerReference { |
| 34 | for _, ref := range controllee.GetOwnerReferences() { |
| 35 | if ref.Controller != nil && *ref.Controller { |
| 36 | return &ref |
| 37 | } |
| 38 | } |
| 39 | return nil |
| 40 | } |
| 41 | |
| 42 | // NewControllerRef creates an OwnerReference pointing to the given owner. |
| 43 | func NewControllerRef(owner Object, gvk schema.GroupVersionKind) *OwnerReference { |
| 44 | blockOwnerDeletion := true |
| 45 | isController := true |
| 46 | return &OwnerReference{ |
| 47 | APIVersion: gvk.GroupVersion().String(), |
| 48 | Kind: gvk.Kind, |
| 49 | Name: owner.GetName(), |
| 50 | UID: owner.GetUID(), |
| 51 | BlockOwnerDeletion: &blockOwnerDeletion, |
| 52 | Controller: &isController, |
| 53 | } |
| 54 | } |