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117 lines
3.9 KiB
Go
117 lines
3.9 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 persistentvolume
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import (
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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api "k8s.io/kubernetes/pkg/apis/core"
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"k8s.io/kubernetes/pkg/features"
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)
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func getClaimRefNamespace(pv *api.PersistentVolume) string {
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if pv.Spec.ClaimRef != nil {
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return pv.Spec.ClaimRef.Namespace
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}
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return ""
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}
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// Visitor is called with each object's namespace and name, and returns true if visiting should continue
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type Visitor func(namespace, name string) (shouldContinue bool)
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// VisitPVSecretNames invokes the visitor function with the name of every secret
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// referenced by the PV spec. If visitor returns false, visiting is short-circuited.
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// Returns true if visiting completed, false if visiting was short-circuited.
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func VisitPVSecretNames(pv *api.PersistentVolume, visitor Visitor) bool {
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source := &pv.Spec.PersistentVolumeSource
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switch {
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case source.AzureFile != nil:
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if source.AzureFile.SecretNamespace != nil && len(*source.AzureFile.SecretNamespace) > 0 {
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if len(source.AzureFile.SecretName) > 0 && !visitor(*source.AzureFile.SecretNamespace, source.AzureFile.SecretName) {
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return false
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}
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} else {
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if len(source.AzureFile.SecretName) > 0 && !visitor(getClaimRefNamespace(pv), source.AzureFile.SecretName) {
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return false
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}
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}
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return true
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case source.CephFS != nil:
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if source.CephFS.SecretRef != nil {
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// previously persisted PV objects use claimRef namespace
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ns := getClaimRefNamespace(pv)
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if len(source.CephFS.SecretRef.Namespace) > 0 {
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// use the secret namespace if namespace is set
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ns = source.CephFS.SecretRef.Namespace
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}
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if !visitor(ns, source.CephFS.SecretRef.Name) {
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return false
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}
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}
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case source.FlexVolume != nil:
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if source.FlexVolume.SecretRef != nil && !visitor(getClaimRefNamespace(pv), source.FlexVolume.SecretRef.Name) {
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return false
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}
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case source.RBD != nil:
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if source.RBD.SecretRef != nil {
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// previously persisted PV objects use claimRef namespace
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ns := getClaimRefNamespace(pv)
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if len(source.RBD.SecretRef.Namespace) > 0 {
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// use the secret namespace if namespace is set
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ns = source.RBD.SecretRef.Namespace
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}
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if !visitor(ns, source.RBD.SecretRef.Name) {
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return false
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}
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}
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case source.ScaleIO != nil:
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if source.ScaleIO.SecretRef != nil {
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ns := getClaimRefNamespace(pv)
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if source.ScaleIO.SecretRef != nil && len(source.ScaleIO.SecretRef.Namespace) > 0 {
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ns = source.ScaleIO.SecretRef.Namespace
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}
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if !visitor(ns, source.ScaleIO.SecretRef.Name) {
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return false
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}
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}
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case source.ISCSI != nil:
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if source.ISCSI.SecretRef != nil {
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// previously persisted PV objects use claimRef namespace
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ns := getClaimRefNamespace(pv)
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if len(source.ISCSI.SecretRef.Namespace) > 0 {
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// use the secret namespace if namespace is set
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ns = source.ISCSI.SecretRef.Namespace
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}
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if !visitor(ns, source.ISCSI.SecretRef.Name) {
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return false
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}
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}
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case source.StorageOS != nil:
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if source.StorageOS.SecretRef != nil && !visitor(source.StorageOS.SecretRef.Namespace, source.StorageOS.SecretRef.Name) {
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return false
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}
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}
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return true
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}
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// DropDisabledAlphaFields removes disabled fields from the pv spec.
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// This should be called from PrepareForCreate/PrepareForUpdate for all resources containing a pv spec.
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func DropDisabledAlphaFields(pvSpec *api.PersistentVolumeSpec) {
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if !utilfeature.DefaultFeatureGate.Enabled(features.BlockVolume) {
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pvSpec.VolumeMode = nil
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}
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}
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