[rdo-dev] [Octavia] Providing service VM images in RDO

Hi, Octavia (LBaaS v2) uses service VMs (called an amphora) to do the actual load-balancing work. The amphora is built with a diskimage-builder script [0] and I have a patch in progress to update it to use distribution packages [1] Currently, in addition to the "usual" deployment steps, the user will have to create/update the amphora image manually with a procedure looking like: * install openstack-octavia-diskimage-create RPM (script and dependencies) * customize a CentOS cloud image to add yum repositories (mostly for the amphora agent) * run the script in "distribution" mode, which will install packages instead of fetching upstream git * upload and tag the new image in glance Would it possible here to automate this process and provide an already built image in the repo (with updated packages inside)? It would have some advantages: * easier install/maintenance for the user, tripleo can consume the image directly (from a package) * ensuring up-to-date amphora images (to match the controller version, for security updates, …) * allow to test and confirm the amphora works properly with latest changes, including enforcing SELinux (CentOS upstream gate runs in permissive) * use this image in tripleo CI (instead of having to build it there) * (future) extend this system for other system VM images To work, this needs access to a repo with the newly built packages (both to install the latest script, and for DIB to pick the correct packages). Thoughts? [0] https://github.com/openstack/octavia/blob/master/diskimage-create/diskima... [1] https://review.openstack.org/#/c/522626/ -- Bernard Cafarelli