Comment 1 for bug 1039579

Reviewed: https://review.openstack.org/11715
Committed: http://github.com/openstack/nova/commit/30e6879d8139e13fc70b0d1c8ef13d7ee03ca5c3
Submitter: Jenkins
Branch: master

commit 30e6879d8139e13fc70b0d1c8ef13d7ee03ca5c3
Author: Scott Moser <email address hidden>
Date: Tue Aug 21 11:16:02 2012 -0400

    add availability_zone to openstack metadata

    This adds the key 'availability_zone' to the metadata for openstack.

    'availability-zone' in EC2 is very useful to the instance to figure out
    where it is. For example, Ubuntu uses this information to determine
    mirror location on EC2.

    Fixes bug 1039579.

    Change-Id: I212d3854b75e08a67138b5cd0bea178c47840e11