In order to use CCF OpenStack Neutron plugin, please do following changes to
overcloud-containers-prepare-parameter.yaml

1. add neutron-server to the first section

  excludes:
  - neutron-server

2. add CCF rhosp16-openstack-neutron-server-arista-ccf image
based on OpenStack Platform version.

- push_destination: true
  includes:
  - neutron-server
  set:
    name_prefix: rhosp16-openstack-
    name_suffix: -arista-ccf
    namespace: registry.connect.redhat.com/arista
    tag: latest

3. add login credential for registry.connect.redhat.com

    registry.connect.redhat.com:
      <redhat-acccount>: <redhat-password>


Following is a sample of the overcloud-containers-prepare-parameter.yaml:

#   openstack tripleo container image prepare default --local-push-destination --output-env-file overcloud-container-parameter.yaml
#

parameter_defaults:
  ContainerImagePrepare:
  - push_destination: true
    excludes:
      - neutron-server
    set:
      ceph_alertmanager_image: ose-prometheus-alertmanager
      ceph_alertmanager_namespace: registry.redhat.io/openshift4
      ceph_alertmanager_tag: 4.1
      ceph_grafana_image: rhceph-4-dashboard-rhel8
      ceph_grafana_namespace: registry.redhat.io/rhceph
      ceph_grafana_tag: 4
      ceph_image: rhceph-4-rhel8
      ceph_namespace: registry.redhat.io/rhceph
      ceph_node_exporter_image: ose-prometheus-node-exporter
      ceph_node_exporter_namespace: registry.redhat.io/openshift4
      ceph_node_exporter_tag: v4.1
      ceph_prometheus_image: ose-prometheus
      ceph_prometheus_namespace: registry.redhat.io/openshift4
      ceph_prometheus_tag: 4.1
      ceph_tag: latest
      name_prefix: openstack-
      name_suffix: ''
      #neutron_driver: null
      namespace: registry.redhat.io/rhosp-rhel8
      rhel_containers: false
      tag: '16.1'
    tag_from_label: '{version}-{release}'

  - push_destination: true
    includes:
    - neutron-server
    set:
      name_prefix: rhosp16-openstack-
      name_suffix: -arista-ccf
      namespace: registry.connect.redhat.com/arista
      tag: 'latest'

  ContainerImageRegistryCredentials:
    registry.redhat.io:
      rh-account: password

    registry.connect.redhat.com:
      rh-account: password
