From 0e32ddeffe86d14b1408b9cfb7b68439d93557c0 Mon Sep 17 00:00:00 2001
From: Han Jiang <jianghan@amazon.com>
Date: Thu, 21 Oct 2021 10:44:51 -0500
Subject: [PATCH] For custom index type, create ISM policy on OpenSearch if
 ism_policy_file parameter is set. (#433)

* For custom index type, create ISM policy on OpenSearch if ism_policy_file parameter is set.

Signed-off-by: Han Jiang <jianghan@amazon.com>

* Remove index template from test-custom-index-policy-file.json so IT can pass
Signed-off-by: Han Jiang <jianghan@amazon.com>

* To be backward compatible, drop ISM template from policy file if the field is found invalid.
Signed-off-by: Han Jiang <jianghan@amazon.com>