Comment 2 for bug 1513165

Ideally we should be able to define a hostname at the device level and use it through out all the layers.

The use case is that one wants to deploy its lxc machines and then name them after the service it's providing (eg. rabbit-mq-ha01) so they can easily track and see their logs through a central log server.
Currently it's pretty hard to identify that server name machine-0-lxc-0.maas has rabbit-mq running on it.