parameters:
  _param:
    keystone_glusterfs_service_host: ${_param:glusterfs_service_host}
  glusterfs:
    client:
      volumes:
        keystone-keys:
          path: /var/lib/keystone/fernet-keys
          server: ${_param:keystone_glusterfs_service_host}
          user: keystone
          group: keystone
          opts: "defaults,backup-volfile-servers=${_param:cluster_node01_address}:${_param:cluster_node02_address}:${_param:cluster_node03_address}"