[systemd-devel] Q: Implementing logrotate's postrotate with systemd

[Reindl Harald]

Am 11.06.19 um 13:34 schrieb Ulrich Windl:
> I have a forking service (with a PID file) that can reopen the logfile after receiving SIGHUP. In the past I had implemented "rc{service} rotate" to send SIGHUP to the daemon as "postrotate" action. After converting (actually being converted ;-)) to systemd I dropped the LSB script, and wonder which command to use as "postrotate" action:
> 
> Should I implement a oneshot service (using "systemctl start {service}") that does depend on the actual service and send a SIGHUP on start, or is there a more elegent solution?

that's what reload is all about

[harry at srv-rhsoft:/etc/systemd/system]$ cat named.service | grep Reload
ExecReload=/usr/bin/kill -HUP $MAINPID

[harry at srv-rhsoft:/etc/systemd/system]$ cat rsyslog.service | grep Reload
ExecReload=/usr/bin/kill -HUP $MAINPID