wiki-grav/pages/02.linux/09.podman/default.en.md

---
title: Podman
---

## Generate systemd service
Create a container the normal way  

Using this container as a reference, you can generate a systemd service file  
`# podman generate systemd --new --name --files (container)`  

Remove your old container  
`# podman container rm (container)`  

`# cp container-(container).service /etc/systemd/system/`  

`# systemctl daemon-reload`  
`# systemctl enable --now container-(container)`  
The container should now be running just as before  

## Auto-Update container
The command to update containers configured for auto-update is `# podman auto-update`  

Add `--label "io.containers.autoupdate=image"` to the `ExecStart=/usr/bin/podman ...` line in the service file you generated  
Make sure to use, for example, `docker.io/` instead of `docker://` as the source of the image  

Reload and restart  
`# systemctl daemon-reload`  
`# systemctl enable --now container-(container)`  

If you want to manually run updates for the configured containers, use this command:  
`# podman auto-update`  

### Auto-Update timer
To truly automate your updates, enable the included timer  
`# systemctl enable --now podman-auto-update.timer`  

### Check update log
The update logs are kept in the `podman-auto-update` service  
`$ journalctl -eu podman-auto-update`  

## Prune images service and timer
`/etc/systemd/system/podman-image-prune.service`  
```
[Unit]
Description=Podman image-prune service

[Service]
Type=oneshot
ExecStart=/usr/bin/podman image prune -f

[Install]
WantedBy=multi-user.target
```

`/etc/systemd/system/podman-image-prune.timer`  
```
[Unit]
Description=Podman image-prune timer

[Timer]
OnCalendar=weekly
Persistent=true

[Install]
WantedBy=timers.target
```

`# systemctl daemon-reload`  
`# systemctl enable --now podman-image-prune.timer`  

> [Documentation](https://docs.podman.io/en/latest/markdown/podman-image-prune.1.html)
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