https://blog.wongcw.com/2019/03/13/aws%e6%8e%a8%e5%87%ba%e5%a2%9e%e5%bc%b7%e7%9a%84elasticsearch%e9%96%8b%e6%ba%90%e7%99%bc%e8%a1%8c%e7%89%88/