Add a new subdomain for the static content (videos,photos) of our Arch
Linux Conference so it is independent of the the conf.archlinux.org url
routing.

The location block should also execute PHP otherwise we will just reply
with PHP files.

someone has made a conky script that hits the rss feed every second, so nginx
now limits that to once per minute, returning 503 instead at other times. a
burst is also in place to prevent genuine users being blocked.

luna handles mailman and other services that generate a lot of mail, so bypass
all rate-limiting for it.

Added arch-tu to mailman_compat.

mex.mirror.pkgbuild.com suffers from a disk failure so it can't act as a
proper mirror at the moment.

when deploying the postfix role, specify postfix_relayhost variable with the
hostname of the smtp smarthost to use for delivery. all outbound smtp mail
will be delivered via the specified host.

This took quite a bit of manual work on the particular systems as they were partitioned in all sorts of ways that didn't allow for a big continuous chunk of storage such as required by the archive. I've manually repartitioned everything and it seems to work just fine. Now all systems have a big 4TB / and that's that.

Add the borg-client role to the bbs.archlinux.org playbook, for enabling
backups.

Update for bbs.archlinux.org

Signed-off-by: Jelle van der Waa <jelle@archlinux.org>

Fix installation of php deps, don't deploy git master and get the
fluxbb_cookie_seed from the ansible-vault