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fc5eadf106
Make sure to operate within the namespace if any given when dealing with rbd images and snapshots and their journals. Signed-off-by: Mehdy Khoshnoody <mehdy.khoshnoody@gmail.com>
106 lines
3.3 KiB
Go
106 lines
3.3 KiB
Go
/*
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Copyright 2020 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 rbd
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import (
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"context"
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"errors"
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"fmt"
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"github.com/ceph/ceph-csi/internal/util"
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klog "k8s.io/klog/v2"
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)
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func createRBDClone(ctx context.Context, parentVol, cloneRbdVol *rbdVolume, snap *rbdSnapshot, cr *util.Credentials) error {
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// create snapshot
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err := parentVol.createSnapshot(ctx, snap)
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if err != nil {
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klog.Errorf(util.Log(ctx, "failed to create snapshot %s: %v"), snap, err)
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return err
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}
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snap.RbdImageName = parentVol.RbdImageName
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// create clone image and delete snapshot
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err = cloneRbdVol.cloneRbdImageFromSnapshot(ctx, snap)
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if err != nil {
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klog.Errorf(util.Log(ctx, "failed to clone rbd image %s from snapshot %s: %v"), cloneRbdVol.RbdImageName, snap.RbdSnapName, err)
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err = fmt.Errorf("failed to clone rbd image %s from snapshot %s: %w", cloneRbdVol.RbdImageName, snap.RbdSnapName, err)
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}
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errSnap := parentVol.deleteSnapshot(ctx, snap)
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if errSnap != nil {
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klog.Errorf(util.Log(ctx, "failed to delete snapshot: %v"), errSnap)
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delErr := deleteImage(ctx, cloneRbdVol, cr)
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if delErr != nil {
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klog.Errorf(util.Log(ctx, "failed to delete rbd image: %s with error: %v"), cloneRbdVol, delErr)
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}
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return err
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}
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err = cloneRbdVol.getImageInfo()
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if err != nil {
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klog.Errorf(util.Log(ctx, "failed to get rbd image: %s details with error: %v"), cloneRbdVol, err)
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delErr := deleteImage(ctx, cloneRbdVol, cr)
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if delErr != nil {
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klog.Errorf(util.Log(ctx, "failed to delete rbd image: %s with error: %v"), cloneRbdVol, delErr)
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}
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return err
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}
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return nil
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}
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func cleanUpSnapshot(ctx context.Context, parentVol *rbdVolume, rbdSnap *rbdSnapshot, rbdVol *rbdVolume, cr *util.Credentials) error {
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err := parentVol.deleteSnapshot(ctx, rbdSnap)
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if err != nil {
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if !errors.Is(err, ErrSnapNotFound) {
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klog.Errorf(util.Log(ctx, "failed to delete snapshot: %v"), err)
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return err
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}
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}
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err = deleteImage(ctx, rbdVol, cr)
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if err != nil {
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if !errors.Is(err, ErrImageNotFound) {
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klog.Errorf(util.Log(ctx, "failed to delete rbd image: %s/%s with error: %v"), rbdVol.Pool, rbdVol.VolName, err)
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return err
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}
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}
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return nil
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}
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func generateVolFromSnap(rbdSnap *rbdSnapshot) *rbdVolume {
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vol := new(rbdVolume)
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vol.ClusterID = rbdSnap.ClusterID
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vol.VolID = rbdSnap.SnapID
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vol.Monitors = rbdSnap.Monitors
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vol.Pool = rbdSnap.Pool
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vol.JournalPool = rbdSnap.JournalPool
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vol.RadosNamespace = rbdSnap.RadosNamespace
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vol.RbdImageName = rbdSnap.RbdSnapName
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vol.ImageID = rbdSnap.ImageID
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return vol
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}
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func undoSnapshotCloning(ctx context.Context, parentVol *rbdVolume, rbdSnap *rbdSnapshot, cloneVol *rbdVolume, cr *util.Credentials) error {
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err := cleanUpSnapshot(ctx, parentVol, rbdSnap, cloneVol, cr)
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if err != nil {
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klog.Errorf(util.Log(ctx, "failed to clean up %s or %s: %v"), cloneVol, rbdSnap, err)
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return err
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}
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err = undoSnapReservation(ctx, rbdSnap, cr)
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return err
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}
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