I want to start a graphical application via systemd. I tried to do that via udev before, but the application is killed after the rule terminates. It works when I run the application directly via systemd, but not when I run the script that starts the application with some constraints.
My service file looks like this:
[Unit]
Description=App starter
[Service]
Type=oneshot
RemainAfterExit=yes
Environment=DISPLAY=:0
Environment=HOME=/home/user/
ExecStart=/home/user/runApp
[Install]
WantedBy=multi-user.target
journalctl -xe gives me
Sep 25 13:50:00 host systemd[1]: Starting App starter...
Subject: A start job for unit app.service has begun execution
Defined-By: systemd
Support: https://forum.manjaro.org/c/support
A start job for unit xournalpp.service has begun execution.
The job identifier is 19196.
Sep 25 13:50:00 host runApp[313232]: App is not running
Sep 25 13:50:00 host systemd[1]: app.service: Main process exited, code=exited, status=1/FAILURE
Subject: Unit process exited
Defined-By: systemd
Support: https://forum.manjaro.org/c/support
An ExecStart= process belonging to unit xournalpp.service has exited.
The process' exit code is 'exited' and its exit status is 1.
Sep 25 13:50:00 host systemd[1]: app.service: Failed with result 'exit-code'.
Subject: Unit failed
Defined-By: systemd
Support: https://forum.manjaro.org/c/support
The unit xournalpp.service has entered the 'failed' state with result 'exit-code'.
Sep 25 13:50:00 host systemd[1]: Failed to start App starter.
Subject: A start job for unit app.service has failed
Defined-By: systemd
Support: https://forum.manjaro.org/c/support
A start job for unit app.service has finished with a failure.
The job identifier is 19196 and the job result is failed.
Here is the script. Might it be due to the running in background by &? In need this because I want to reuse the script.
#!/bin/bash
if pgrep app
then
echo App is running
wmctrl -x -a app
wmctrl -x -r app -b "add,maximized_vert,maximized_horz"
else
echo App is not running
/usr/bin/app & disown
fi
echo 1) - it might just be a problem with e.g. loading the environment in the script. You are also definingDISPLAY, thus maybegraphical.targetinstead ofmulti-user.targetseems more fitting. Last but not least it looks like the user should run it on login, I guess? Please specify.&was the problem apparently. I think this is also not the right way to do what I want to do, since the unit keeps on running.