Redesign Unattended-Upgrade::Origins-Pattern interface

[ypid]

Looking back at the design by @drybjed and myself of 50unattended-upgrades.j2 and unattended_upgrades__tpl_macros.j2 it seems we overdid it a little bit with the Jinja2 templating. I guess we tried to see how far Jinja2 can be used to cache a list using Ansible local facts and make it idemptent. I guess this is not very Debian like and I found a different way how this can be handled using apt.conf.d. It is simple. Just split the definition of Unattended-Upgrade::Origins-Pattern done by various variables/roles over multiple files the same as other roles handle it.

Example:

/etc/apt/apt.conf.d/50unattended-upgrades_debops_owncloud:

Unattended-Upgrade::Origins-Pattern {
        "site=download.owncloud.org";
};

APT will merge the definitions as can be checked using apt-config dump.

This is also a reminder to myself that KISS is important 😉

[drybjed]

Good to know that APT can do stuff like this! It could probably make some things simplier.

The current debops.unattended_upgrades role seems to work fine, so I suppose we don't need to mess with it at this point. Custom configuration from other roles can be done directly either way.