itamae/cookbooks/consul/files/etc/consul.d/service-consul.json

{
  "service": {
    "name": "consul",
    "port": 8600,
    "check":{
      "tcp": "localhost:8600",
      "interval": "60s",
      "timeout": "1s",
      "success_before_passing": 3
    }
  }
}