"network_config": [
 {
  "type": "ovs_bridge",
  "name": "br-ctlplane",
  "ovs_extra": [
   "br-set-external-id br-ctlplane bridge-id br-ctlplane"
  ],
  "addresses": [
    {
      "ip_netmask": "{{PUBLIC_INTERFACE_IP}}"
    }
  ],
  "mtu": {{LOCAL_MTU}}
}
]