glusterfs/client/volume/aptly.yml

parameters:
  _param:
    aptly_glusterfs_service_host: ${_param:glusterfs_service_host}
  glusterfs:
    client:
      volumes:
        aptly:
          path: /srv/volumes/aptly
          server: ${_param:aptly_glusterfs_service_host}
          opts: 'defaults'