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
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