title: spring boot 1.5.1 and elasticsearch 5.4
body: <p>I have a spring boot 1.5.1 application and live Elasticsearch 5.4 which I can't downgrade to 2.4.5 or so
  Spring data supports only 2.x.x versions of Elasticsearch
  <a href="https://jira.spring.io/browse/DATAES-285" rel="nofollow noreferrer">https://jira.spring.io/browse/DATAES-285</a>
  What is the best way to make spring boot work with remote elasticsearch together with out spring-data?</p>