parameters:
  _param:
    glance_glusterfs_service_host: ${_param:glusterfs_service_host}
    glusterfs_node01_address: ${_param:cluster_node01_address}
    glusterfs_node02_address: ${_param:cluster_node02_address}
    glusterfs_node03_address: ${_param:cluster_node03_address}
  glusterfs:
    client:
      volumes:
        glance:
          path: /var/lib/glance/images
          server: ${_param:glance_glusterfs_service_host}
          user: glance
          group: glance
          opts: "defaults,backup-volfile-servers=${_param:glusterfs_node01_address}:${_param:glusterfs_node02_address}:${_param:glusterfs_node03_address}"