Check cluster health before trying to load roles for ES

salt/elasticsearch/tools/sbin/so-elasticsearch-roles-load

@@ -33,6 +33,8 @@ while [[ "$COUNT" -le 240 ]]; do
 	if [ $? -eq 0 ]; then
 		ELASTICSEARCH_CONNECTED="yes"
 		echo "connected!"
+		# Check cluster health once connected
+		so-elasticsearch-query _cluster/health?wait_for_status=yellow > /dev/null 2>&1
 		break
 	else
 		((COUNT+=1))