I would really love to recommend Juju. I used it for a good couple months attempting to get even just a working Openstack deployment. The trouble is that for the bare-metal functionality you guys mean it to be paired with MaaS. Unfortunately the community I found to exist around this combination was basically zero.

Even a simple question went unanswered the couple times I posted it. Eventually I gave up and just went back to Puppet+Openstack modules for the configuration I was working on at the time.