Systemd

Systemd is a linux service manager. It's what I personally use on my arch config, and it's how I create custom background services.


Basic Commands

• Show System Status - systemctl status
• List Running Units - systemctl or systemctl list-units
• Show System Status - systemctl status
• Show Process Status - systemctl status [process]
• Start A Process - systemctl start [process]
• Restart A Process - systemctl relead [process]
• Start A Process At Boot - systemctl enable [process]
• Disable Start On Boot - systemctl disable [process]
• Reload Everything - systemctl daemon-reload

Note: When navigating processes, using grep or less is really helpful for parsing large outputs.

Creating Custom Services - Starting A Docker Image

I have a docker image running ArchiveBox on my main workstation as a systemd service. Here's how I did it.

Here's the short bash script I wrote to start my docker image:
1
2
3
#!/bin/bash
cd /home/jakeg/archivebox
sudo docker-compose up
I used chmod +x [file].sh to give systemd execution access to the script.

In the systemd directory /etc/systemd/system I wrote the file archivebox.service with the contents:
1
2
3
4
5
6
7
8
9
[Unit]
Description=archivebox service

[Service]
type=simple
ExecStart=/bin/bash /home/jakeg/archivebox/run.sh

[Install]
WantedBy=multi-user.target

References

• "Creating a Linux service with systemd" - Medium.com

https://wiki.archlinux.org/title/systemd