By not removing the port binding details from the migration tool, we can make the migration from the hybrid firewall possible. The patch that should enable this process is here: https://review.opendev.org/c/openstack/neutron/+/837566 The purpose of this BZ is to track the backports and testing of the migration to ML2/OVN from the hybrid firewall, as well as to update our current documentation that states that it is not supported.
Verified on RHOS-17.0-RHEL-9-20220721.n.1 Verified that is possible to migrate to OVN from OVS+iptables_hybrid firewall driver. Note: still there are some OVS-specific leftovers Bug 2106370 - [OSP17.0][OVN migration] iptables hybrid OVS-specific leftovers (qbr/qvb/qvo) still exist after VM migration One more related BZ Bug 2103147 - [RFE] Consider hybrid plugging during cold migration Added corresponding comment to https://bugzilla.redhat.com/show_bug.cgi?id=2054670 in order to document the issues until they are fixed.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Release of components for Red Hat OpenStack Platform 17.0 (Wallaby)), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHEA-2022:6543
The needinfo request[s] on this closed bug have been removed as they have been unresolved for 120 days