rbd: consider lastSyncTimeNotFound as image not syncing

This commit modifies code to consider image as not syncing
when the lastSyncTime is not found.

Signed-off-by: Rakshith R <rar@redhat.com>

Author: Rakshith-R

internal/csi-addons/rbd/replication.go

@@ -724,11 +724,16 @@ func (rs *ReplicationServer) ResyncVolume(ctx context.Context,
 		log.DebugLog(ctx, "image %s, savedImageTime=%v, currentImageTime=%v", rbdVol, st, creationTime)
 
 		syncInfo, sErr := localStatus.GetLastSyncInfo(ctx)
-		if sErr != nil {
+		if sErr != nil && !errors.Is(sErr, rbderrors.ErrLastSyncTimeNotFound) {
 			return nil, status.Errorf(codes.Internal, "failed to get last sync info: %s", sErr.Error())
 		}
 
-		if req.GetForce() && st.Equal(*creationTime) && !syncInfo.IsSyncing() {
+		// consider the image is not syncing if either
+		// - the last sync time was not found or
+		// - the sync info indicates the image is not syncing
+		IsNotSyncing := (errors.Is(sErr, rbderrors.ErrLastSyncTimeNotFound) || !syncInfo.IsSyncing())
+
+		if req.GetForce() && st.Equal(*creationTime) && IsNotSyncing {
 			err = mirror.Resync(ctx)
 			if err != nil {
 				return nil, getGRPCError(err)