[WIP] Automatic upgrades

[sbrl]

This PR will look at enabling automatic upgrades for the Freeside machines.

[sbrl]

Following the guide here: https://paulmellorsblog.wordpress.com/2017/10/11/unattended-upgrades/

....we need to update /etc/dnf/automatic.conf automagically.

[Epictek]

@sbrl this will need to be updated for fabric2, if you need assistance with this let me know :)

[sbrl]

Erm right, @Epictek. So there are 2 files now. What I've got already needs to go in the install one right?

[Epictek]

Since it's more of a configuration change rather than an application install putting it in desktop/conf.py is probably best.

[sbrl]

@Epictek .....but we install packages here? I'm confused 😕

[Epictek]

install.py is more for installing user applications, whereas conf.py is more about configuring. There is no change apart from the name scheme (desktop.conf.dnf-automatic) so whichever you feel is more appropriate. IMO it fits better in conf.py

[sbrl]

....so something can either be in install or conf, but not both?