added elasticsearch persistence

docker-compose.yml

@@ -67,6 +67,8 @@ services:
             memlock:
                 soft: -1
                 hard: -1
+        volumes:
+            - esindex-volume:/var/lib/postgresql/data:rw
 
     proxy:
         build: ./nginx-ingress
@@ -85,3 +87,5 @@ volumes:
         driver: local
     apsadmindb-volume:
         driver: local
+    esindex-volume:
+        driver: local