ceph-csi/internal/rbd/snapshot.go
Madhu Rajanna c3bae17fce rbd: delete encryption key from KMS
when a Snapshot is encrypted during a CreateSnapshot
operation, the encryption key gets created in the KMS
when we delete the Snapshot the key from the KMS
should also gets deleted.

When we create a volume from snapshot we are copying
required information but we missed to copy the
encryption information, This commit adds the missing
information to delete the encryption key.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
2021-04-30 08:05:47 +00:00

108 lines
3.4 KiB
Go

/*
Copyright 2020 The Ceph-CSI Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package rbd
import (
"context"
"errors"
"fmt"
"github.com/ceph/ceph-csi/internal/util"
)
func createRBDClone(ctx context.Context, parentVol, cloneRbdVol *rbdVolume, snap *rbdSnapshot, cr *util.Credentials) error {
// create snapshot
err := parentVol.createSnapshot(ctx, snap)
if err != nil {
util.ErrorLog(ctx, "failed to create snapshot %s: %v", snap, err)
return err
}
snap.RbdImageName = parentVol.RbdImageName
// create clone image and delete snapshot
err = cloneRbdVol.cloneRbdImageFromSnapshot(ctx, snap)
if err != nil {
util.ErrorLog(ctx, "failed to clone rbd image %s from snapshot %s: %v", cloneRbdVol.RbdImageName, snap.RbdSnapName, err)
err = fmt.Errorf("failed to clone rbd image %s from snapshot %s: %w", cloneRbdVol.RbdImageName, snap.RbdSnapName, err)
}
errSnap := parentVol.deleteSnapshot(ctx, snap)
if errSnap != nil {
util.ErrorLog(ctx, "failed to delete snapshot: %v", errSnap)
delErr := deleteImage(ctx, cloneRbdVol, cr)
if delErr != nil {
util.ErrorLog(ctx, "failed to delete rbd image: %s with error: %v", cloneRbdVol, delErr)
}
return err
}
err = cloneRbdVol.getImageInfo()
if err != nil {
util.ErrorLog(ctx, "failed to get rbd image: %s details with error: %v", cloneRbdVol, err)
delErr := deleteImage(ctx, cloneRbdVol, cr)
if delErr != nil {
util.ErrorLog(ctx, "failed to delete rbd image: %s with error: %v", cloneRbdVol, delErr)
}
return err
}
return nil
}
func cleanUpSnapshot(ctx context.Context, parentVol *rbdVolume, rbdSnap *rbdSnapshot, rbdVol *rbdVolume, cr *util.Credentials) error {
err := parentVol.deleteSnapshot(ctx, rbdSnap)
if err != nil {
if !errors.Is(err, ErrSnapNotFound) {
util.ErrorLog(ctx, "failed to delete snapshot: %v", err)
return err
}
}
err = deleteImage(ctx, rbdVol, cr)
if err != nil {
if !errors.Is(err, ErrImageNotFound) {
util.ErrorLog(ctx, "failed to delete rbd image: %s/%s with error: %v", rbdVol.Pool, rbdVol.VolName, err)
return err
}
}
return nil
}
func generateVolFromSnap(rbdSnap *rbdSnapshot) *rbdVolume {
vol := new(rbdVolume)
vol.ClusterID = rbdSnap.ClusterID
vol.VolID = rbdSnap.VolID
vol.Monitors = rbdSnap.Monitors
vol.Pool = rbdSnap.Pool
vol.JournalPool = rbdSnap.JournalPool
vol.RadosNamespace = rbdSnap.RadosNamespace
vol.RbdImageName = rbdSnap.RbdSnapName
vol.ImageID = rbdSnap.ImageID
// copyEncryptionConfig cannot be used here because the volume and the
// snapshot will have the same volumeID which cases the panic in
// copyEncryptionConfig function.
vol.encryption = rbdSnap.encryption
return vol
}
func undoSnapshotCloning(ctx context.Context, parentVol *rbdVolume, rbdSnap *rbdSnapshot, cloneVol *rbdVolume, cr *util.Credentials) error {
err := cleanUpSnapshot(ctx, parentVol, rbdSnap, cloneVol, cr)
if err != nil {
util.ErrorLog(ctx, "failed to clean up %s or %s: %v", cloneVol, rbdSnap, err)
return err
}
err = undoSnapReservation(ctx, rbdSnap, cr)
return err
}