kibana-123/src/core_plugins/elasticsearch/lib/create_data_cluster.js

Kibana is an open source (Apache Licensed), browser based analytics and search dashboard for Elasticsearch. Kibana is a snap to setup and start using. Kibana strives to be easy to get started with, while also being flexible and powerful, just like Elastic

import { bindKey } from 'lodash';
import { clientLogger } from './client_logger';

export function createDataCluster(server) {
  const config = server.config();
  const ElasticsearchClientLogging = clientLogger(server);

  class DataClientLogging extends ElasticsearchClientLogging {
    tags = ['data'];
    logQueries = getConfig().logQueries;
  }

  function getConfig() {
    if (Boolean(config.get('elasticsearch.tribe.url'))) {
      return config.get('elasticsearch.tribe');
    }

    return config.get('elasticsearch');
  }

  const dataCluster = server.plugins.elasticsearch.createCluster(
    'data',
    Object.assign({ log: DataClientLogging }, getConfig())
  );

  server.on('close', bindKey(dataCluster, 'close'));
}