gating: aio check fails on hpcloud instances when adding apt key

[Jesse Pretorius]

Any all-in-one build that runs in an hpcloud instances fails when trying to add the apt keys. It appears that for some reason the ubuntu keyserver is consistently not accessible from the hpcloud instances.

We either need to identify why the keyserver is inaccessible, or enable an attempt to a second keyserver/keyservice which is accessible if the first is inaccessible.

[Hugh Saunders (hughsaunders)]

It seems the apt problem was a symptom, the actual problem was lack of disk space.
see: https://review.openstack.org/#/c/145234/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/145234
Committed: https://git.openstack.org/cgit/stackforge/os-ansible-deployment/commit/?id=a4785cba7d5d10e06854998b3faa71d2cf0641e2
Submitter: Jenkins
Branch: master

commit a4785cba7d5d10e06854998b3faa71d2cf0641e2
Author: Hugh Saunders <email address hidden>
Date: Tue Jan 6 14:31:39 2015 +0000

    Configure disks for hp cloud instances

    Nodepool sometimes provides an hp cloud instance that has the majority
    of space in /dev/vdb which is mounted at /mnt. This patch repurposes
    that partition as an lvm VG for containers.

    Also:
     * creates an LV for /opt and mounts that.
     * outputs some instance info that may be useful for debugging

    Closes-Bug: #1407647

    Change-Id: I91a6ab3994be348b17caaf9c9200d84463076d87