public static List<DiskImage> getCinderLeafImages(List<Disk> disks, boolean onlyPluggedDisks) {
   List<DiskImage> leafCinderDisks = new ArrayList<>();
   List<CinderDisk> cinderDisks = ImagesHandler.filterDisksBasedOnCinder(disks, onlyPluggedDisks);
   for (CinderDisk cinder : cinderDisks) {
     leafCinderDisks.add(ImagesHandler.getSnapshotLeaf(cinder.getId()));
   }
   return leafCinderDisks;
 }