With the puppetmaster not there anymore, we should consume inventory
from OpenStack rather than from puppet.
It turns out that because of the way static and dynamic inventories get
merged, the static file needs to stand alone. SO - if you need to
disable a dynamic host from OpenStack (pretty much all of our hosts) you
need to not only add it to dynamic:children, you need to add an emtpy
group into the static file too, otherwise you'll get an error like:
root@puppetmaster:~# ansible -i newinv '!disabled' --list-hosts
ERROR: newinv/static:4: child group is not defined: (jenkins-dev.openstack.org)
Change-Id: Ic6809ed0b7014d7aebd414bf3a342e3a37eb10b6