For tripleo there's a documentation, worth read it to have a general view what tripleo does to migrate from OVS to OVN:

https://docs.openstack.org/neutron/latest/ovn/migration.html

There are playbooks for it in Neutron repo, that will be helpful as well I hope:

https://opendev.org/openstack/neutron/src/branch/master/tools/ovn_migration

Regards

Lajos Katona (lajoskatona)

Jake Yip <jake.yip@unimelb.edu.au> ezt írta (időpont: 2021. nov. 22., H, 17:23):

Hi all,

We are planning a migration from Midonet to OVN. The general idea is to:

- pause neutron
- do a `neutron-ovn-db-sync-util`
- change networks/ports to geneve/ovs
- hard reboot the instances

We are wondering if anyone has done a migration like this before, and
will like to share their experiences.

Any input will be greatly appreciated.

Regards,
Jake

--
Jake Yip
DevOps Engineer, ARDC Nectar Research Cloud