+ openstack:
+ - queens:
+ openstack-branch: 'stable/queens'
+ odl-ml2-branch: 'stable/queens'
+ odl-ml2-port-binding: 'pseudo-agentdb-binding'
+ openstack_system_image: '{openstack_queens_system_image}'
+ openstack_system2_image: '{openstack_queens_system_image}'
+