Am 09.01.20 um 13:08 schrieb Michael Stone: > On Wed, Jan 08, 2020 at 07:12:17PM -0800, Russ Allbery wrote: >> Michael Stone <mst...@debian.org> writes: >>> On Thu, Jan 09, 2020 at 02:09:12AM +0000, Paul Wise wrote: >> >>>> This is the main reason I haven't switched to systemd timers for my >>>> personal crontab, I have some jobs that generate output (diffs of >>>> various things mostly) but don't fail. There doesn't appear to be any >>>> tool to monitor a tool and send a mail if it generates output or fails, >>>> in the way that cron does. >> >>> mail -E ? >> >> Specifically: >> >> ExecStart=/bin/sh -c '/path/to/job | /usr/bin/mail -E' >> >> in the service unit triggered by the timer unit should work, I think. >> (I've not tested it.) > > May need something like > (job || echo Job failed) 2>&1 | mail -E > or even > > (job 2>&1 || echo Job failed) | tee /dev/stderr | mail -E > > depending on the specific requirements, but in general this should be > pretty straightforward
You might want to use OnFailure= https://www.freedesktop.org/software/systemd/man/systemd.unit.html#OnFailure= https://serverfault.com/questions/694818/get-notification-when-systemd-monitored-service-enters-failed-state You can set the OnFailure= action via a drop-in for individual services without having to touch the original .service file. With v244 it's also possible to set this OnFailure= action globally for all services. The relevant part from the NEWS file: > * Unit files now support top level dropin directories of the form > <unit_type>.d/ (e.g. service.d/) that may be used to add > configuration > that affects all corresponding unit files. Or you use something like https://github.com/joonty/systemd_mon HTH, Michael
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