If you are using the CLI, there is a tutorial on how to use most of the functionality of Octavia here:

https://docs.openstack.org/octavia/latest/user/guides/basic-cookbook.html

If you are using the API directly, then the only action would be to include Octavia in your projects list (if it isn't already) and change your endpoint from neutron to octavia. The Octavia API is fully compatible with the Neutron-LBaaS v2 API spec.

If you are using the python client, you will need to switch to python-octaviaclient or to the openstack SDK, and I am unfortunately not aware of a guide to do that. However, it is a remarkably similar service (object model and API are 100% compatible), so making the transition should hopefully not be very difficult, and we are happy to help in #openstack-lbaas on IRC if you need specific assistance.

--Adam

On Mon, May 13, 2019 at 2:13 AM Takashi Yamamoto <yamamoto@midokura.com> wrote:

On Mon, May 13, 2019 at 5:42 PM Adam Harwell <flux.adam@gmail.com> wrote:
>
> As you are hopefully already aware, the Neutron-LBaaS project is being retired this cycle (and a lot of the patches to accomplish this will land in the next few days).
> From a quick code search, it seems the following projects still include neutron-lbaas in their zuul job configs:
>
> networking-odl
> networking-midonet
> senlin
> vmware-nsx
> zaqar
>
> For projects on this list, the retirement of neutron-lbaas *will* cause your zuul jobs to fail. Please take action to remove this requirement! It is possible that it is simply an extra unused requirement, but if your project is actually using neutron-lbaas to create loadbalancers, it will be necessary to convert to Octavia.

is there a guide for the conversion?

>
> If you need assistance with this change or have any questions, don't hesitate to stop by #openstack-lbaas on IRC and we can help!
>
> --Adam Harwell