Comment 4 for bug 1475534

Okay, this is a bit back and forth: However, having discussed nobotu's requirement, it does seem that there is a need for dhcp_agents_per_network to be settable orthogonally to l3ha.

The openstack docs indicate that it has a default setting of 1, so adding it such that it always defaults to 1 (if not explicitly set) will have no impact on existing bundles/settings.

The only downside is having to remember to set dhcp_agents_per_network if you want it in ADDITION to l3ha. However, I believe it is the best of both worlds.

Thus, the setting will be available regardless of 'enable-l3ha'.