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

[Michael Biebl]

A separate oneshot service sounds like overkill. I would probably use
something like
`systemctl kill -s HUP ${service}.service`
If your sevices spawns multiple processes and you only want to send
SIGHUP to the main process, you should add a `--kill-who=main`

All documented nicely in
https://www.freedesktop.org/software/systemd/man/systemctl.html

Am Di., 11. Juni 2019 um 13:34 Uhr schrieb Ulrich Windl
<Ulrich.Windl at rz.uni-regensburg.de>:
>
> Hi!
>
> 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?
>
> Regards,
> Ulrich
>
>
>
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