parameters:
  _param:
    postgresql_glusterfs_service_host: ${_param:glusterfs_service_host}
  glusterfs:
    client:
      volumes:
        postgresql:
          path: /srv/volumes/postgresql
          server: ${_param:postgresql_glusterfs_service_host}
          opts: "defaults,backup-volfile-servers=${_param:cluster_node01_address}:${_param:cluster_node02_address}:${_param:cluster_node03_address}"