glusterfs/client/volume/glance.yml

parameters:
  _param:
    glance_glusterfs_service_host: ${_param:glusterfs_service_host}
  glusterfs:
    client:
      volumes:
        glance:
          path: /var/lib/glance/images
          server: ${_param:glance_glusterfs_service_host}
          user: glance
          group: glance