https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-templates.html
PUT _template/{name}
References:
- Mapping https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping.html
- Mapping Management in Index APIs https://www.elastic.co/guide/en/elasticsearch/reference/current/indices.html
- Mapping Management in Index APIs (Java High Level REST Client) https://www.elastic.co/guide/en/elasticsearch/client/java-rest/current/_index_apis.html