{
    "$license": [
        "http://www.apache.org/licenses/LICENSE-2.0"
    ],
    "source": {
        host = ${mongo.tcp.host}
        port = ${mongo.tcp.port}
        "db": "mongo_persist_it",
        "collection": "activity"
    },
    "destination": {
        hosts = [
            ${es.tcp.host}
        ]
        port = ${es.tcp.port}
        "clusterName": "elasticsearch",
        "index": "mongo_elasticsearch_sync_it",
        "type": "activity",
        "forceUseConfig": true
    }
}