contrib/storage-druid/src/main/resources/bootstrap-storage-plugins.json

{
  "storage":{
    "druid" : {
      "type" : "druid",
      "brokerAddress" : "http://localhost:8082",
      "coordinatorAddress": "http://localhost:8081",
      "averageRowSizeBytes": 100,
      "enabled" : false
    }
  }
}