vamega / systemd-service2run Goto Github PK

A simple python script that can take a systemd service and outputs a systemd-run invocation that should give you an interactive shell that reflects environment the service would run in.

I was working on setting up some systemd services on nixos and in trying to implement the principles of least separation I kept running into permissions issues. I wanted to debug those services, and an interactive shell that reflected the permissions of the service seemed perfect.

I learnt of systemd-run in this blog post from Lennart Poettering. He has a lot of systemd-run invocations in that post, but on nixos the paths to executables, and packages is far too long, and I didn't want to copy paste these in a terminal.

I couldn't find anything within systemd to take a service's unit file, and run a shell for it, so I wrote this. It's almost certainly incomplete, and there are probably a lot of features of the unit file spec that are missing from this script. Feel free to contribute to this script if something you know want is missing.

If this can be done within systemd-itself, please let me know.