in OpenStack DBaaS (Trove), Barbican, Cue, Designate, OpenStack Backup/Restore and DR (Freezer), Glance, glance_store, ldappool, Meteos, neutron, python-heatclient, python-senlinclient, Python client library for Zaqar, OpenStack Object Storage (swift), tacker, tempest, zaqar, Zun