You're right, CEPH_ARGS was only necessary with Grizzly. Starting with Havana, Cinder and Nova consistently use ceph_args() method to add "--id <rbd_user>" parameter to all invokations of rbd and ceph commands, and Glance doesn't use these commands at all.
You're right, CEPH_ARGS was only necessary with Grizzly. Starting with Havana, Cinder and Nova consistently use ceph_args() method to add "--id <rbd_user>" parameter to all invokations of rbd and ceph commands, and Glance doesn't use these commands at all.