--- a/docker-compose.yml	Mon May 14 15:36:23 2018 +0200
+++ b/docker-compose.yml	Mon May 14 16:45:43 2018 +0200
@@ -14,3 +14,11 @@
       - 9200:9200
     volumes:
       - /usr/share/elasticsearch/data
+
+  postgres:
+    image: postgres:alpine
+    ports:
+      - 5432:5432
+    volumes:
+      - /var/lib/postgresql/data
+