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Running CMX as a service but not as root?

From build 3044 the development baton passed to Mark Crossley. Mark has been responsible for all the Builds since. He has made the code available on GitHub. It is Mark's hope that others will join in this development, but at the very least he welcomes your ideas for future developments (see Cumulus MX Development suggestions).

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broadstairs
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Running CMX as a service but not as root?

Post by broadstairs »

Has anyone here got CMX running as a systemd service in Linux but not running as root?

My reasoning is that I need the CMX data files to be user files so other programs which run can access the files, simply altering the permissions on the data files is no good as I need this whole system to restart on a power failure or continue over month change etc (new data file(s) ) with no user intervention. Running these other programs as root is not acceptable.

Stuart
Currently running CMX V4.4.2 4085 on Linux openSUSE Leap
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HansR
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Re: Running CMX as a service but not as root?

Post by HansR »

Hi,

I run CMX as service under user pi with the following systemd script:

Code: Select all

[Unit]
Description=CumulusMX service
Documentation=https://cumuluswiki.org/a/Main_Page
Wants=network-online.target
After=network-online.target
Wants=time-sync.target
After=time-sync.target

[Service]
User=pi
Group=pi
ExecStart=/usr/bin/mono-service -d:/home/CumulusMX CumulusMX.exe -service
Type=forking
ExecStopPost=/bin/rm -f /tmp/CumulusMX.exe.lock

[Install]
WantedBy=multi-user.target
I changed user/group for all files in the CMX tree to: pi/pi and everything works fine.

The side effect is that it is easy to update through e.g. WinSCP when that tool logs in as pi. No more use as root which is disadvised always. I only use root through sudo, rarely through sudo su.

And of course you can use any user you wish and install CMX in any directory you wish.

Safety first.
Hans

https://meteo-wagenborgen.nl
CMX build 4070+ ● RPi 4B ● Linux 6.6.62+rpt-rpi-v8 aarch64 (bookworm) ● dotnet 8.0.1
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broadstairs
Posts: 1185
Joined: Thu 14 Aug 2008 7:17 am
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Location: Broadstairs, Kent, UK
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Re: Running CMX as a service but not as root?

Post by broadstairs »

Thanks for that. I was intending to user my user group as stuart/user for example as that is the user which runs the other apps. Now the other apps only need read access so if they get that I should be OK. I'll try using stuart/user and see what happens as I don't want the CMX files under another user/group if I can help it.

Stuart
Currently running CMX V4.4.2 4085 on Linux openSUSE Leap
broadstairs
Posts: 1185
Joined: Thu 14 Aug 2008 7:17 am
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Re: Running CMX as a service but not as root?

Post by broadstairs »

Just to confirm now I have CMX running as a service using my user and group. All working fine.

Stuart
Currently running CMX V4.4.2 4085 on Linux openSUSE Leap
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