Comment 4 for bug 1039662

Reviewed: https://review.openstack.org/43784
Committed: http://github.com/openstack/nova/commit/4389f2292a0177c8eedc0a398ceb3c5535a9ef82
Submitter: Jenkins
Branch: master

commit 4389f2292a0177c8eedc0a398ceb3c5535a9ef82
Author: Xavier Queralt <email address hidden>
Date: Mon Aug 26 22:55:46 2013 +0200

    Avoid errors on some actions when image not usable

    Using the metadata saved on instance creation, we can now get all the
    image related metadata we need from the instance itself.

    This patch replace the logic for getting the image metadata on some
    actions that shouldn't fail when the image is not accessible (create
    an snapshot, resize, migrate, rescue an instance or attach an
    interface).

    Fixes bug 1039662

    Change-Id: Id8c2f13ca96908317d271a84fd685104b64f87e9