Comment 2 for bug 1934145

Reviewed: https://review.opendev.org/c/openstack/kolla-ansible/+/798851
Committed: https://opendev.org/openstack/kolla-ansible/commit/c3f9ba835b1da740c9f3056dbda20a7072467757
Submitter: "Zuul (22348)"
Branch: master

commit c3f9ba835b1da740c9f3056dbda20a7072467757
Author: Mark Goddard <email address hidden>
Date: Wed Jun 30 09:30:54 2021 +0100

    nova: Use cinder user for Ceph

    In Ussuri, nova stopped using separate Ceph keys for the volumes and vms
    pools by default. Instead, we set ceph_nova_keyring to the value of
    ceph_cinder_keyring by default, which is ceph.client.cinder.keyring.
    This is in line with the Ceph OpenStack integration guide [1]. However,
    the user used by nova to access the vms pool (ceph_nova_user) defaults
    to nova, meaning that nova will still try to use a
    ceph.client.nova.keyring, which probably does not exist. We did not see
    this issue in CI, because we set ceph_nova_user to cinder.

    This change fixes the issue by setting ceph_nova_user to the value of
    ceph_cinder_user by default, which is cinder.

    Closes-Bug: #1934145
    Related-Bug: #1928690

    [1] https://docs.ceph.com/en/latest/rbd/rbd-openstack/

    Change-Id: I6aa8db2214e07906f1f3e035411fc80ba911a274