> It's less that we have a specially tailored image for DevStack, and > more that our "standard" images pre-cache any downloads that > DevStack claims it may use... basically we cache all of the > $IMAGE_URLS list built up in > http://git.openstack.org/cgit/openstack-dev/devstack/tree/stackrc as > returned by the > http://git.openstack.org/cgit/openstack-dev/devstack/tree/tools/image_list.sh > script. So it seems the way to go is: 1. Upload what we need to e.g.: http://tarballs.openstack.org/storlet/images/docker/ubuntu_14.04.tar.gz 2. Add the corresponding IMAGE_URL entry to stackrc 3. Grab it from cache from within our scripts executed by Jenkins. > > Keeping the set of images we cache on our nodes trimmed to a limited> > number and only caching reasonably small images is important, > however, since our base images are already quite large (in the > neighborhood of 5GiB as compressed qcow2) and we don't want to bloat > them further if we can help it. The .tar.gz we need is ~65MB, would that be ok? Thanks very much! Eran