Comment 4 for bug 937216

Reviewed: https://review.openstack.org/4330
Committed: http://github.com/openstack/glance/commit/5f3137133054284ced41d3e6702e1dad4591c9c7
Submitter: Jenkins
Branch: master

commit 5f3137133054284ced41d3e6702e1dad4591c9c7
Author: Eoghan Glynn <email address hidden>
Date: Mon Feb 20 21:49:17 2012 +0000

    disk/container_format required on image activate

    Fixes lp 937216

    The initial change[1] to require the container and disk formats be
    explicitly set was enforced on the initial image POST, regardless
    of whether the image content accompanied that request (either in
    as the entity-body, or externally specified via x-image-meta-location).

    This turned out to be overly restrictive, as these formats may not
    be known to the caller until the image content is supplied via a
    subsequent PUT on the new image.

    Now we only enforce the strict requirement for these formats to be
    non-empty when the image is activated (as opposed to the initial
    enqueue).

    [1] https://github.com/openstack/glance/commit/62c913c3

    Change-Id: I89e068f35fd7da427b547b18cdea4ae84ab3ec87