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cephfs: Add clusterName as metadata on snapshots

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Example:
sh-4.4$ ceph fs subvolume snapshot metadata ls myfs csi-vol-ba248f9e-0e75-11ed-b774-8e97192ff5ec \
			csi-snap-ce24e3bb-0e75-11ed-b774-8e97192ff5ec --group_name csi
{
    "csi.ceph.com/cluster/name": "\"K8s-cluster-1\"",
    "csi.storage.k8s.io/volumesnapshot/name": "cephfs-pvc-snapshot",
    "csi.storage.k8s.io/volumesnapshot/namespace": "rook-ceph",
    "csi.storage.k8s.io/volumesnapshotcontent/name": "snapcontent-2e89e1b2-e6e9-48fe-b365-edb493d7022e"
}

Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
This commit is contained in:
Prasanna Kumar Kalever
2022-07-28 14:14:52 +05:30
committed by mergify[bot]
parent 56d7d3cd15
commit de7128b3a2
6 changed files with 46 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
internal/cephfs/core/clone.go
View File

@ -66,7 +66,7 @@ func (s *subVolumeClient) CreateCloneFromSubvolume(
parentvolOpt *SubVolume,
) error {
snapshotID := s.VolID
snapClient := NewSnapshot(s.conn, snapshotID, s.clusterID, parentvolOpt)
snapClient := NewSnapshot(s.conn, snapshotID, s.clusterID, s.clusterName, parentvolOpt)
err := snapClient.CreateSnapshot(ctx)
if err != nil {
log.ErrorLog(ctx, "failed to create snapshot %s %v", snapshotID, err)
@ -165,7 +165,7 @@ func (s *subVolumeClient) CleanupSnapshotFromSubvolume(
// snapshot name is same as clone name as we need a name which can be
// identified during PVC-PVC cloning.
snapShotID := s.VolID
snapClient := NewSnapshot(s.conn, snapShotID, s.clusterID, parentVol)
snapClient := NewSnapshot(s.conn, snapShotID, s.clusterID, s.clusterName, parentVol)
snapInfo, err := snapClient.GetSnapshotInfo(ctx)
if err != nil {
if errors.Is(err, cerrors.ErrSnapNotFound) {
@ -198,7 +198,7 @@ func (s *subVolumeClient) CreateCloneFromSnapshot(
ctx context.Context, snap Snapshot,
) error {
snapID := snap.SnapshotID
snapClient := NewSnapshot(s.conn, snapID, s.clusterID, snap.SubVolume)
snapClient := NewSnapshot(s.conn, snapID, s.clusterID, s.clusterName, snap.SubVolume)
err := snapClient.CloneSnapshot(ctx, s.SubVolume)
if err != nil {
return err

20
internal/cephfs/core/snapshot.go
View File

@ -61,9 +61,10 @@ type SnapshotClient interface {
// snapshotClient is the implementation of SnapshotClient interface.
type snapshotClient struct {
*Snapshot // Embedded snapshot struct.
clusterID string // Cluster ID.
conn *util.ClusterConnection // Cluster connection.
*Snapshot // Embedded snapshot struct.
clusterID string // Cluster ID.
clusterName string // Cluster Name.
conn *util.ClusterConnection // Cluster connection.
}
// Snapshot represents a subvolume snapshot and its cluster information.
@ -73,14 +74,21 @@ type Snapshot struct {
}
// NewSnapshot creates a new snapshot client.
func NewSnapshot(conn *util.ClusterConnection, snapshotID, clusterID string, vol *SubVolume) SnapshotClient {
func NewSnapshot(
conn *util.ClusterConnection,
snapshotID,
clusterID,
clusterName string,
vol *SubVolume,
) SnapshotClient {
return &snapshotClient{
Snapshot: &Snapshot{
SnapshotID: snapshotID,
SubVolume: vol,
},
clusterID: clusterID,
conn: conn,
clusterID: clusterID,
clusterName: clusterName,
conn: conn,
}
}

15
internal/cephfs/core/snapshot_metadata.go
View File

@ -99,6 +99,14 @@ func (s *snapshotClient) SetAllSnapshotMetadata(parameters map[string]string) er
}
}
if s.clusterName != "" {
err := s.setSnapshotMetadata(clusterNameKey, s.clusterName)
if err != nil {
return fmt.Errorf("failed to set metadata key %q, value %q on subvolume snapshot %s %s in fs %s: %w",
clusterNameKey, s.clusterName, s.SnapshotID, s.VolID, s.FsName, err)
}
}
return nil
}
@ -114,5 +122,12 @@ func (s *snapshotClient) UnsetAllSnapshotMetadata(keys []string) error {
}
}
err := s.removeSnapshotMetadata(clusterNameKey)
// TODO: replace string comparison with errno.
if err != nil && !strings.Contains(err.Error(), "No such file or directory") {
return fmt.Errorf("failed to unset metadata key %q on subvolume snapshot %s %s in fs %s: %w",
clusterNameKey, s.SnapshotID, s.VolID, s.FsName, err)
}
return nil
}