Install ovs ml2 driver in AIO

os-neutron-ovs-setup.yml

#Setup OVS bridge in AIO neutron

- name: Setup OVS bridges
  hosts: neutron_openvswitch_agent
  user: root

  pre_tasks:
    - name: Make sure openvswitch is installed
      apt:
        name: openvswitch-switch
        state: present

  tasks:
    - name: Setup br-provider
      openvswitch_bridge:
        bridge: br-provider
        state: present
      notify:
        Restart neutron-openvswitch-agent

    - name: Add port to br-provider
      openvswitch_port:
        bridge: br-provider
        port: ""
        state: present
      notify:
        Restart neutron-openvswitch-agent

  handlers:
    - name: Restart neutron-openvswitch-agent
      service:
        name: neutron-openvswitch-agent
        state: restarted