The deployment of OpenStack hosts can be done by OpenStack Platform Director/TripleO, the Open vSwitch interface mappings are managed by VDSM, and the deployment of ovirt-provider-ovn-driver is managed as the attribute "Default Network Provider" on cluster level.
Reopening for 4.4 being this deferred from 4.3. Changes on engine side are requried in order to allow removal on ovirt-host-deploy side ( bug #1713603 )
Just a note: In 4.0 this feature was TechPreview: "The following steps are provided only as a Technology Preview. Red Hat Virtualization only supports preconfigured Neutron hosts." https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.0/html-single/administration_guide/index#Adding_an_OpenStack_Network_Service_Neutron_for_Network_Provisioning Since 4.1: "Automatic deployment of the neutron agents through the Network Provider tab in the New Host window is not supported." https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.1/html-single/administration_guide/index#Adding_an_OpenStack_Network_Service_Neutron_for_Network_Provisioning
Verified on - rhvm-4.4.0-0.9.master.el7.noarch
This bugzilla is included in oVirt 4.4.0 release, published on May 20th 2020. Since the problem described in this bug report should be resolved in oVirt 4.4.0 release, it has been closed with a resolution of CURRENT RELEASE. If the solution does not work for you, please open a new bug report.