It would be nice to have fedmsg messages for the livecd and appliance koji tasks. i.e.

http://koji.fedoraproject.org/koji/taskinfo?taskID=6378621
http://koji.fedoraproject.org/koji/taskinfo?taskID=6378568

The fedmsg koji plugin could likely conditionalize on the 'channel' field.

THe topics should be something like buildsys.livecd and buildsys.appliance {start,complete,fail}.

These tasks are kicked off by the buildrawhide script which is kicked off by cron.

The buildrawhide script publishes a rawhide.image.start message just before submitting them.