With this release, it is now possible to deploy neutron with the OpenDaylight ML2 driver and OpenDaylight L3 DVR service plugin (no OVS Agent or Neutron L3 Agent needed). A pre-defined environment file is provided for OpenDaylight deployments and can be found in `environments/neutron-opendaylight-l3.yaml`
Note: The OpenDaylight controller itself is deployed and activated on the first overcloud controller node with default roles. OpenDaylight can also be deployed on a custom role. In addition, with this release there is no support for clustering of the OpenDaylight controller, so only a single instance may be deployed.