Add Elasticsearch support

docker-compose.yml

@@ -29,6 +29,7 @@ services:
     networks:
       - default
       - xf
+      - elastic
 
   migration:
     image: xf/fisk:prod
@@ -121,6 +122,8 @@ networks:
     driver: bridge
   xf:
     external: true
+  elastic:
+    external: true
 
 volumes:
   fisk_static: {}