openstack neutron cluster build and explain

Hello,

I have openstack cluster with 3 controllers and balanced with haproxy and keepalived to replace haproxy in case server will die. I plan to use two separate neutron servers with openvswitch and they should be konfigured as ha. Currently I stopped at neutron so i`m looking for help with this.

What kind of help i need: I want that some one will help to configure it to use with floating ip, internal ip, add public subnets, private subnets, fwaas, lbaas.

Currently im running everything on ubuntu 20.04 and all servers is on virtual machines:

2: virtual haproxy servers
3: virtual controller servers (on controller servers there is running ceph monitors)
3: virtual ceph servers
2: virtual neutron servers
1: physical compute server

I need to configure neutron. add subnets and document everything what was done step by step.