Ensure that elasticsearch container store its data into a storage folder on the host system.

.gitignore

@@ -1,3 +1,4 @@
 domain.crt
 domain.key
 *.jks
+storage/elasticsearch

README.md

@@ -4,6 +4,7 @@
 This branch contains my attempt at hardening this setup with self-signed certificates. 
 
 - Added `certs/` folder with helper scripts for creating self-signed certs.
+- Added `storage/` folder and configured docker-compose.yml to mount it as storage for elastic search data so that it can be persisted even if docker containers were to be deleted and recreated. 
 - Configured docker-compose, logstash and kibana to use SSL.
 - No longer exposing Elasticsearch ports on localhost.
 
@@ -15,8 +16,6 @@ Things to think about / resources
 
 ## Docker ELK stack
 
-[![Join the chat at https://gitter.im/deviantony/fig-elk](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/deviantony/fig-elk?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
-
 Run the latest version of the ELK (Elasticseach, Logstash, Kibana) stack with Docker and Docker-compose.
 
 It will give you the ability to analyze any data set by using the searching/aggregation capabilities of Elasticseach and the visualization power of Kibana.

docker-compose.yml

@@ -1,6 +1,8 @@
 elasticsearch:
   image: elasticsearch:latest
   command: elasticsearch -Des.network.host=0.0.0.0
+  volumes:
+    - ./storage:/usr/share/elasticsearch/data
 logstash:
   image: logstash:latest
   command: logstash -f /etc/logstash/conf.d/logstash.conf

storage/.placeholder

@@ -0,0 +1 @@
+Ensure the existence of the parent folder.