kibana-123/src/core_plugins/elasticsearch/lib/kibana_index_mappings.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

export const mappings = {
  config: {
    properties: {
      buildNum: {
        type: 'string',
        index: 'not_analyzed'
      }
    }
  },
  server: {
    properties: {
      uuid: {
        type: 'keyword'
      }
    }
  }
};