itamae/cookbooks/nomad/files/etc/cni/nomad.conflist

{
  "cniVersion": "0.3.1",
  "name": "nomad",
  "plugins": [
    {
      "type": "ptp",
      "ipMasq": true,
      "ipam": {
        "type": "host-local",
        "subnet": "172.16.30.0/24",
        "routes": [
          {
            "dst": "0.0.0.0/0"
          }
        ]
      }
    },
    {
      "type": "portmap",
      "capabilities": { "portMappings": true }
    }
  ]
}