At the moment it is not possible to use Ceilometer for Swift because the package ceilometermiddleware is missing in the RDO repository. Please add a package for https://github.com/openstack/ceilometermiddleware/.
@chdent: can you check if this is still the case for the RDO/Liberty packages used in the recent testdays?
I already packaged this and submitted upstream. python-ceilometermiddleware [1] should be in liberty delorean repos. [1] http://cbs.centos.org/koji/buildinfo?buildID=4713