mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
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4ad4ee3153
This controller removes protection finalizer from PVCs that are being deleted and are not referenced by any pod.
69 lines
2.2 KiB
Go
69 lines
2.2 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 util
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import (
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"k8s.io/api/core/v1"
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)
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const (
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// Name of finalizer on PVCs that have a running pod.
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PVCProtectionFinalizer = "kubernetes.io/pvc-protection"
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)
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// IsPVCBeingDeleted returns:
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// true: in case PVC is being deleted, i.e. ObjectMeta.DeletionTimestamp is set
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// false: in case PVC is not being deleted, i.e. ObjectMeta.DeletionTimestamp is nil
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func IsPVCBeingDeleted(pvc *v1.PersistentVolumeClaim) bool {
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return pvc.ObjectMeta.DeletionTimestamp != nil
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}
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// IsProtectionFinalizerPresent returns true in case PVCProtectionFinalizer is
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// present among the pvc.Finalizers
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func IsProtectionFinalizerPresent(pvc *v1.PersistentVolumeClaim) bool {
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for _, finalizer := range pvc.Finalizers {
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if finalizer == PVCProtectionFinalizer {
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return true
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}
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}
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return false
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}
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// RemoveProtectionFinalizer returns pvc without PVCProtectionFinalizer in case
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// it's present in pvc.Finalizers. It expects that pvc is writable (i.e. is not
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// informer's cached copy.)
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func RemoveProtectionFinalizer(pvc *v1.PersistentVolumeClaim) {
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newFinalizers := make([]string, 0)
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for _, finalizer := range pvc.Finalizers {
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if finalizer != PVCProtectionFinalizer {
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newFinalizers = append(newFinalizers, finalizer)
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}
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}
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if len(newFinalizers) == 0 {
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// Sanitize for unit tests so we don't need to distinguish empty array
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// and nil.
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newFinalizers = nil
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}
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pvc.Finalizers = newFinalizers
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}
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// AddProtectionFinalizer adds PVCProtectionFinalizer to pvc. It expects that
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// pvc is writable (i.e. is not informer's cached copy.)
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func AddProtectionFinalizer(pvc *v1.PersistentVolumeClaim) {
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pvc.Finalizers = append(pvc.Finalizers, PVCProtectionFinalizer)
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}
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