Comment 19 for bug 1166321

Looks like this is implemented with commit [1] (a new service gets
created in "disabled" mode). This disabled service can then be enabled
with "nova service-enable <hostname> <binary>" [2].

References:
[1] https://git.openstack.org/cgit/openstack/nova/commit/?id=5a25de893f34cb9b05996406488188b6ed47fca1
[2] http://docs.openstack.org/cli-reference/nova.html#nova-service-enable