we do not know if there are other failrue
neutron has a spereate issue which was tracked by https://github.com/eventlet/eventlet/issues/619
and nova hit the ssl issue with websockify and eventlets tracked by https://github.com/eventlet/eventlet/issues/632

so the issue is really eventlets is not compatiabley with dnspython 2.0
so before openstack can uncap dnspython eventlets need to gain support for dnspython 2.0
that should hopefully resolve the issues that nova, neutron and other projects are now hitting.

it is unlikely that this is something we can resolve in openstack alone, not unless we are willing to monkeyptych
eventlets and other dependcies so really we need to work with eventlets and or dnspython to resolve the incompatiablity
caused by the dnspython changes in 2.0