network:
 version: 2
 ethernets:
   mlan0:
    dhcp4: true
   eth1:
    addresses:
     - 100.100.1.131/24
    gateway4: 192.168.9.254
    nameservers:
     addresses: [4.2.2.2,8.8.8.8]
   eth0:
    dhcp4: true
   docker0:
    addresses:
     - 172.17.0.1/16