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41fe2c7dda
Set snapshot-name/snapshot-namespace/snapshotcontent-name details on RBD backend snapshot image as metadata on snapshot Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
103 lines
3.0 KiB
Go
103 lines
3.0 KiB
Go
/*
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Copyright 2022 The Ceph-CSI 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 k8s
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import (
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"strings"
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)
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// CSI Parameters prefixed with csiParameterPrefix are passed through
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// to the driver on CreateVolumeRequest/CreateSnapshotRequest calls.
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const (
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csiParameterPrefix = "csi.storage.k8s.io/"
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// PV and PVC metadata keys used by external provisioner as part of
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// create requests as parameters, when `extra-create-metadata` is true.
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pvcNameKey = "csi.storage.k8s.io/pvc/name"
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pvcNamespaceKey = "csi.storage.k8s.io/pvc/namespace"
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pvNameKey = "csi.storage.k8s.io/pv/name"
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// snapshot metadata keys.
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volSnapNameKey = "csi.storage.k8s.io/volumesnapshot/name"
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volSnapNamespaceKey = "csi.storage.k8s.io/volumesnapshot/namespace"
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volSnapContentNameKey = "csi.storage.k8s.io/volumesnapshotcontent/name"
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)
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// RemoveCSIPrefixedParameters removes parameters prefixed with csiParameterPrefix.
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func RemoveCSIPrefixedParameters(param map[string]string) map[string]string {
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newParam := map[string]string{}
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for k, v := range param {
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if !strings.HasPrefix(k, csiParameterPrefix) {
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// add the parameter to the new map if its not having the prefix
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newParam[k] = v
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}
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}
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return newParam
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}
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// GetOwner returns the pvc namespace name from the parameter.
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func GetOwner(param map[string]string) string {
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return param[pvcNamespaceKey]
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}
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// GetVolumeMetadata filter parameters, only return PV/PVC/PVCNamespace metadata.
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func GetVolumeMetadata(parameters map[string]string) map[string]string {
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keys := []string{pvcNameKey, pvcNamespaceKey, pvNameKey}
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newParam := map[string]string{}
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for k, v := range parameters {
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for _, key := range keys {
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if strings.Contains(k, key) {
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newParam[k] = v
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}
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}
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}
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return newParam
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}
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// PrepareVolumeMetadata return PV/PVC/PVCNamespace metadata based on inputs.
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func PrepareVolumeMetadata(pvcName, pvcNamespace, pvName string) map[string]string {
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newParam := map[string]string{}
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if pvcName != "" {
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newParam[pvcNameKey] = pvcName
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}
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if pvcNamespace != "" {
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newParam[pvcNamespaceKey] = pvcNamespace
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}
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if pvName != "" {
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newParam[pvNameKey] = pvName
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}
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return newParam
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}
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// GetSnapshotMetadata filter parameters, only return
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// snapshot-name/snapshot-namespace/snapshotcontent-name metadata.
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func GetSnapshotMetadata(parameters map[string]string) map[string]string {
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keys := []string{volSnapNameKey, volSnapNamespaceKey, volSnapContentNameKey}
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newParam := map[string]string{}
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for k, v := range parameters {
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for _, key := range keys {
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if strings.Contains(k, key) {
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newParam[k] = v
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}
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}
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}
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return newParam
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}
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