ceph/systemd/ceph-mon@.service
Tim Serong 61d779345e systemd: encourage ceph-mgr to start in sync with ceph-mon
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>
2016-09-29 17:27:08 +01:00

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Desktop File

[Unit]
Description=Ceph cluster monitor daemon
# According to:
# http://www.freedesktop.org/wiki/Software/systemd/NetworkTarget
# these can be removed once ceph-mon will dynamically change network
# configuration.
After=network-online.target local-fs.target time-sync.target ceph-create-keys@%i.service
Wants=network-online.target local-fs.target time-sync.target ceph-create-keys@%i.service ceph-mgr@%i.service
PartOf=ceph-mon.target
[Service]
LimitNOFILE=1048576
LimitNPROC=1048576
EnvironmentFile=-/etc/sysconfig/ceph
Environment=CLUSTER=ceph
ExecStart=/usr/bin/ceph-mon -f --cluster ${CLUSTER} --id %i --setuser ceph --setgroup ceph
ExecReload=/bin/kill -HUP $MAINPID
PrivateDevices=yes
ProtectHome=true
ProtectSystem=full
PrivateTmp=true
TasksMax=infinity
Restart=on-failure
StartLimitInterval=30min
StartLimitBurst=3
[Install]
WantedBy=ceph-mon.target