Designate charm missing Neutron relation

[Felipe Alfaro Solana]

According to https://docs.openstack.org/ocata/networking-guide/config-dns-int.html, Designate needs to integrate with Neutron in order to enable the "dns" extension:

Add dns to extension_drivers in the [ml2] section of /etc/neutron/plugins/ml2/ml2_conf.ini. The following is an example:

[ml2]
extension_drivers = port_security,dns

However, from the installation guide for Designate and Juju: https://jujucharms.com/designate/ There is no mention to any relation between Designate and Neutron. As a consequence, Neutron is misconfigured and ML2 needs to be configured by hand. Failure to do so means the following commands won't work:

# neutron port-create ubuntu-net --dns_name my-port
Unrecognized attribute(s) 'dns_name'
Neutron server returns request_ids: ['req-ad8a96bf-dea8-4e35-a4b2-37feb7cd20c4']

or

2017-03-28 07:52:20.825 30372 INFO neutron.api.v2.resource [req-3cfbbd0f-664b-46d0-8ae4-59da9c71a020 3ffddfd636a649cb826c2bb58ff314a9 32aab8daceba4a01a591e02ba9f4a574 - - -] create failed (client error): Unrecognized attribute(s) 'dns_name'