process.json

{
  "name": "worker",
  "script": "./index.js",
  "instances": 1,
  "merge_logs": true,
  "log_date_format": "YYYY-MM-DD HH:mm Z",
  "watch": true,
  "watch_options": {
    "followSymlinks": true,
    "usePolling": true,
    "interval": 5
  }
}