I might not have been clear: I'd want bare-metal as the basis for running Containers or Docker. The Xen article described the value of using a Xen guest as the

I might not have been clear: I'd want bare-metal as the basis for running Containers or Docker. The Xen article described the value of using a Xen guest as the basis. Ubuntu MAAS could be part of that, but I'd want to be managing containers, not metal.