mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-09-19 23:19:52 +00:00
5621f2cfca
parseAndDeleteMigratedVolume() prviously clubbed the logic of parsing of migration volume handle and then continued with the deletion of the volume. however this commit split this logic into two, ie parsing has been done in parseMigrationVolID() and DeleteMigratedVolume() deletes the backend volume. Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
112 lines
3.4 KiB
Go
112 lines
3.4 KiB
Go
/*
|
|
Copyright 2021 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"
|
|
"encoding/hex"
|
|
"strings"
|
|
|
|
"github.com/ceph/ceph-csi/internal/util"
|
|
"github.com/ceph/ceph-csi/internal/util/log"
|
|
)
|
|
|
|
// isMigrationVolID validates if the passed in volID is a volumeID
|
|
// of a migrated volume.
|
|
func isMigrationVolID(volHash string) bool {
|
|
return strings.Contains(volHash, migIdentifier) &&
|
|
strings.Contains(volHash, migImageNamePrefix) && strings.Contains(volHash, migMonPrefix)
|
|
}
|
|
|
|
// parseMigrationVolID decodes the volume ID and generates a migrationVolID
|
|
// struct which consists of mon, image name, pool and clusterID information.
|
|
func parseMigrationVolID(vh string) (*migrationVolID, error) {
|
|
mh := &migrationVolID{}
|
|
handSlice := strings.Split(vh, migVolIDFieldSep)
|
|
if len(handSlice) < migVolIDTotalLength {
|
|
// its short of length in this case, so return error
|
|
return nil, ErrInvalidVolID
|
|
}
|
|
// Store pool
|
|
poolHash := strings.Join(handSlice[migVolIDSplitLength:], migVolIDFieldSep)
|
|
poolByte, dErr := hex.DecodeString(poolHash)
|
|
if dErr != nil {
|
|
return nil, ErrMissingPoolNameInVolID
|
|
}
|
|
mh.poolName = string(poolByte)
|
|
// Parse migration mons( for clusterID) and image
|
|
for _, field := range handSlice[:migVolIDSplitLength] {
|
|
switch {
|
|
case strings.Contains(field, migImageNamePrefix):
|
|
imageSli := strings.Split(field, migImageNamePrefix)
|
|
if len(imageSli) > 0 {
|
|
mh.imageName = migInTreeImagePrefix + imageSli[1]
|
|
}
|
|
case strings.Contains(field, migMonPrefix):
|
|
// ex: mons-7982de6a23b77bce50b1ba9f2e879cce
|
|
mh.clusterID = strings.Trim(field, migMonPrefix)
|
|
}
|
|
}
|
|
if mh.imageName == "" {
|
|
return nil, ErrMissingImageNameInVolID
|
|
}
|
|
if mh.poolName == "" {
|
|
return nil, ErrMissingPoolNameInVolID
|
|
}
|
|
if mh.clusterID == "" {
|
|
return nil, ErrDecodeClusterIDFromMonsInVolID
|
|
}
|
|
|
|
return mh, nil
|
|
}
|
|
|
|
// deleteMigratedVolume get rbd volume details from the migration volID
|
|
// and delete the volume from the cluster, return err if there was an error on the process.
|
|
func deleteMigratedVolume(ctx context.Context, parsedMigHandle *migrationVolID, cr *util.Credentials) error {
|
|
var err error
|
|
rv := &rbdVolume{}
|
|
|
|
// fill details to rv struct from parsed migration handle
|
|
rv.RbdImageName = parsedMigHandle.imageName
|
|
rv.Pool = parsedMigHandle.poolName
|
|
rv.ClusterID = parsedMigHandle.clusterID
|
|
rv.Monitors, err = util.Mons(util.CsiConfigFile, rv.ClusterID)
|
|
if err != nil {
|
|
log.ErrorLog(ctx, "failed to fetch monitors using clusterID: %s, err: %v", rv.ClusterID, err)
|
|
|
|
return err
|
|
}
|
|
|
|
// connect to the volume.
|
|
err = rv.Connect(cr)
|
|
if err != nil {
|
|
log.ErrorLog(ctx, "failed to get connected to the rbd image : %s, err: %v", rv.RbdImageName, err)
|
|
|
|
return err
|
|
}
|
|
defer rv.Destroy()
|
|
// if connected , delete it
|
|
err = deleteImage(ctx, rv, cr)
|
|
if err != nil {
|
|
log.ErrorLog(ctx, "failed to delete rbd image : %s, err: %v", rv.RbdImageName, err)
|
|
|
|
return err
|
|
}
|
|
|
|
return nil
|
|
}
|