--- features: - | Added support for Keystone middleware feature to pass service token along with the user token for Cinder to Nova and Glance services. This will help get rid of user token expiration issues during long running tasks e.g. creating volume snapshot (Cinder->Nova) and creating volume from image (Cinder->Glance) etc. To use this functionality a service user needs to be created first. Add the service user configurations in ``cinder.conf`` under ``service_user`` group and set ``send_service_user_token`` flag to ``True``.