I created a new repo under https://github.com/Katello/ceilometer_katello_dispatcher, for a ceilometer dispatcher that feeds instance events from RDO into Katello.
It works by calling python-rhsm to create, update and delete consumer records in Katello when certain instance events happen in RDO. The readme has instructions on how to set it up if you want to try it out:) More info is available at https://fedorahosted.org/katello/wiki/RDOandKatello.
It currently builds with setup.py and tito. I'll be working tomorrow on nose and pylint tests. Let me know if you have any questions about the dispatcher or want to try it out yourself and run into issues during installation.