single Network interface

Hello I use kolla ansible wallaby version . my compute node has only one port . is it possible to use this server ? as I know openstack compute need 2 port one for management and other for external user network . Im using provider_networks and it seems neutron_external_interface could not be the same as network_interface because openvswitch need to create br-ex bridge on separate port is there any solution that i can config my compute with 1 port ?