On Sat, 14.02.15 20:31, Holger Freyther (hol...@freyther.de) wrote: > Hi,
Heya, > for one application we will spawn one or more pppd daemons. Once > a link is up I would like to monitor them. The closest thing that > I can do right now is "systemctl start mon@$PPP_IFACE" from within > a /etc/ppp/ip-up.d/mon file. Is your pppd daemon itself also a systemd service? What precisely does "monitor" consist of for this case? > In case I consider the link broken or I want to bring it down, I > don't know how to do it. What options do I have? I can look at > /run/$PPP_IFACE.pid and then send a SIGHUP to the task (this > requires that the monitor app is allowed to do that). > > What would be neat is that if I could spawn a "watchdog" from > with-in /etc/ppp/ip-up.d/mon for the existing service and that > when the application exits (or doesn't respond/send watchdog > messages to systemd) the "parent" will be stopped. "parent"? as in parent process? Or the pppd's service? > Is something like this already possible or wanted behavior? How > would you handle that? We have watchdog support already, with sd_notify(0, "WATCHDOG=1"), and WatchdogSec=. But that requires you to run your pppd as a service of its own, to be useful. Lennart -- Lennart Poettering, Red Hat _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
