classes: - service.neutron.gateway.single parameters: neutron: gateway: dvr: ${_param:neutron_gateway_dvr} agent_mode: ${_param:neutron_gateway_agent_mode} backend: tenant_network_types: ${_param:neutron_tenant_network_types}" message_queue: members: - host: ${_param:openstack_message_queue_node01_address} - host: ${_param:openstack_message_queue_node02_address} - host: ${_param:openstack_message_queue_node03_address}