This is a hack to inject a key for the mgr daemon, using whatever
key already exists on the mon on this node to gain sufficient
permissions to create the mgr key. Failure is ignored at every
step (the '-' prefix) in case someone has already used some other
trick to set everything up manually.
Signed-off-by: Tim Serong <tserong@suse.com>
This change introduces the following behaviour:
- When ceph-mon starts, it will try to start ceph-mgr with the same
instance id (Wants=), but will *not* fail to start if ceph-mgr
doesn't start (i.e. the mon still works as it always did).
- ceph-mgr will start After= ceph-mon, and will stop and start when
ceph-mon stops and starts, because it's PartOf= ceph-mon.
If you don't want ceph-mgr to run on the mons, you need to mask the
service, i.e. `systemctl mask ceph-mgr@INSTANCE`. Hostnames are
typically instance names, so `systemctl mask ceph-mgr@$(hostname)`
should suffice if you wish to disable ceph-mgr on the mons.
Signed-off-by: Tim Serong <tserong@suse.com>
