| assert | stop a host when a check command fails |
| certbot | get a Let's Encrypt certificate |
| cmd | run a command |
| debconf | set a debconf answer |
| dir | manage a directory |
| download | download a file or an archive |
| file | manage a file |
| firewall | filter incoming traffic |
| group | manage a group |
| hostname | set the host name |
| line | manage one line in a file |
| link | manage a symbolic link |
| pkg | install or remove packages |
| reboot | reboot the host |
| repo | manage an apt source |
| service | control a systemd unit |
| timezone | set the time zone |
| unit | manage a systemd unit file |
| upgrade | upgrade the installed packages |
| user | manage a user account |