Ethernet Static IP

What do you mean by that?

You can set eth.ip, eth.netmask, eth.gw and eth.nameserver either in your mos.yml or as usual with mos config-set command.

  - ["eth.ip", "10.10.10.10"]
  - ["eth.netmask", "255.255.255.0"]
  - ["eth.gw", "10.10.10.254"]
  - ["eth.nameserver", "10.10.10.254"]
mos config-set eth.ip="10.10.10.10" eth.netmask="255.255.255.0" eth.gw="10.10.10.254" eth.nameserver="10.10.10.254"