emonSD next steps: emonhub logging

[pb66 (Paul)]

@TrystanLea

Is there any reason not to specify the log file location here instead? it would keep it separate from the rsyslog configuration?

I think @Greebo might have said this directive is not fully operational in some distros’s

Symlinking services in Jessie doesn't work

Ok, that wasn’t my hunch! That’s the error I was getting when I used StandardOutput=file: and that was caused by the “file:” specifier only being available from systemd v236. Interestingly, the error says type but your post has Type - are you sure the service file is in Sentence case as you posted it? FWIW, the version release history of systemd can be found here: systemd/NEWS at main · systemd/systemd · GitHub

But can we not just use std redirection as part of the ExecStart= command?

EG emonhub already has a --logfile commandline option for this purpose so if the command in the service unit was

ExecStart=/usr/share/emonhub/emonhub.py --config-file=/home/pi/data/emonhub.conf --logfile=/var/log/emonhub/emonhub.log

instead of

ExecStart=/usr/share/emonhub/emonhub.py --config-file=/home/pi/data/emonhub.conf

normal logging would be resumed despite the move to a systemd unit.