ceph dashboard uses radosgw-admin for certain tasks that
aren't accessible via the rgw REST API. Due to the absence of
a valid ceph.conf file at /etc/ceph/ceph.conf within the mgr pod,
radosgw-admin fails to operate, resulting in 500 errors across
various 'Object Gateway' views on the dashboard. This change
adds CEPH_ARGS environment variable to the mgr pod enabling
its propagation and utilization by the dashboard/radosgw-admin
for executing rgw commands.
closes: https://github.com/rook/rook/issues/13255
Signed-off-by: Redouane Kachach <rkachach@redhat.com>
(cherry picked from commit afc485fa03)