{
  "storage-driver": "devicemapper",
   "storage-opts": [
     "dm.thinpooldev=/dev/mapper/{{ docker_storage_volume_group | replace('-', '--') }}-{{ docker_storage_volume_thinpool | replace('-', '--') }}",
     "dm.use_deferred_removal=true",
     "dm.use_deferred_deletion=true"
   ]
}