{
  "logger": {
    "level": "debug"
  },
  "db": {
    "implementation": "local"
  },
  "grid": {
    "client_type": "selenium",
    "port": 4444,
    "strategy_list": [
      {
        "type": "persistent"
      }
    ],
    "busy_node_duration": "15m",
    "reserved_node_duration": "5m"
  }
}