According to the OpenStack docs the individual clients are deprecated in favor for the openstack client.
The following individual clients are deprecated in favor of a common client. (source)
So I started using the openstack client. With the
nova client, I could attach interfaces to instances after their creation with
nova interface-attach --port-id $PID <Nova instance name>. I wonder how this is possible with the openstack client?
port set --device-owner and
port set --device, but they doesn't seem to work properly.