OVN has been evolving a lot since it was announced over a year ago. The project is being developed by many developers from VMware, Red Hat, IBM, eBay and other companies and individuals. If you haven’t had a chance to give it a try, recent work in the networking-ovn project has resulted in fairly complex and realistic deployment topology using Vagrant. I encourage you to have a look at the reference architecture referenced above, it’s very realistic and has come from actual production deployments of OVN with OpenStack.

OVN With Vagrant⌗

Looking at the Vagrant setup with OVN, you can see that we deploy for nodes:

  • A database node which runs ovn-northd the NB and SB databases. Eventually these will be separate ovsdb-server processes once this patch merges.
  • A controller node for running the OpenStack control plane.
  • Two compute nodes running nova compute and ovn-controller.

This is a fairly realistic deployment topology and allows for some realistic testing in a Vagrant environment. We will even support live migration once this patch merges.

Give OVN a Try!⌗

If you haven’t tried OVN with OpenStack yet, go ahead and clone the networking-ovn repository and spin-up our Vagrant! If you hit any issues, find us on #openstack-neutron-ovn on Freenode, or use the Open vSwitch mailing list or OpenStack dev mailing list.