Description of problem:

Domain used to create the FQDN  of the instances in OSP is unique for all the deploy.
It can be changed modifying the parameter dns_domain of the neutron.conf file, but each user (or tenant) cannot select its own domain.

This is a problem when trying to integrate OSP with an External DNS service, because some users wants to assign different domain to each instance, for example, when they are in different tenant, different environment (dev, pre, pro), or any other.

Customer wants to assign domains to the instances, based in a default domain (assigned to the tenant) or a fixed domain for a concrete instance.

Actual results:

The domain assigned to all the instances is the same for all the infrastructure


Expected results:

User want to select a default domain on each tenant, and use it for instances in that tenant if any other domain is not explicitly selected


Additional info: