After some chats back and forth between asamalik@redhat.com, farrotin@redhat.com, obudai@redhat.com, and me let's track the work for deployment in Jira so it's a bit more trackable. The premise is that as part of renewing the image building tools used in CentOS's Koji that `image-builder` is made available.

As far as I understand it now, the following things are things that need to be done in the order I've written them down:

1. Build `koji-image-builder` into farrotin@redhat.com's repository that is used for the CentOS Koji machines.
2. Deploy `koji-image-builder` onto the CentOS Koji machines.
   1. `koji-image-builder-hub` installed, and enabled in configuration, on the hub.
   2. `koji-image-builder-builder` installed and enabled in configuration, on the builders.
3. Setup tags, targets, and groups. This is tracked in CS-2797.
   1. The tags/targets are (I believe) already set up so this would mean to also have `image-builder` and its group `image-builder-build` available in the build tags.
   2. I'm not entirely sure on which packages need to end up in which (external) repositories, let me know if I can do anything to make things easier.

After this it would be possible to schedule image-builder-build tasks in CentOS's Koji manually by anyone who has permissions to the image channel (or is an admin).

This seems like a good moment to consider "step 1" to be done. We can then follow up with how we'd like to schedule builds, this can be either through pungi, or other means.