From fd8ea77fa483e889e580f3ecb6e90f7168d6f0fb Mon Sep 17 00:00:00 2001
From: Frank Fischer <Frank.Fischer@blue-yonder.com>
Date: Mon, 14 Jan 2019 15:53:01 +0100
Subject: [PATCH] Use systemd's RequiresMountsFor

User might be interested in separating data
in ephemeral and persistent state, especially
in cloud environments, e.g. data_dir on
another disk.
---
 templates/systemd/elasticsearch.j2 | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/templates/systemd/elasticsearch.j2 b/templates/systemd/elasticsearch.j2
index 8bd5545c..79fe3825 100644
--- a/templates/systemd/elasticsearch.j2
+++ b/templates/systemd/elasticsearch.j2
@@ -3,6 +3,8 @@ Description=Elasticsearch-{{es_instance_name}}
 Documentation=http://www.elastic.co
 Wants=network-online.target
 After=network-online.target
+{# Directive 'WorkingDirectory' creates an implicit dependecy for {{es_home}}, so it can be omitted here #}
+RequiresMountsFor={{ data_dirs | array_to_str(separator=' ') }} {{log_dir}} {{pid_dir}} {{conf_dir}}
 
 [Service]
 Environment=ES_HOME={{es_home}}