Open up postgress instance port

Iran R · Iran R · commit 546940f70955 · 2020-05-17T15:03:23.000+08:00
diff --git a/docker-compose.yml b/docker-compose.yml
@@ -3,6 +3,8 @@ services:
   db:
     image: postgres:12.2-alpine
     restart: always
+    ports:
+      - '54321:5432'
     environment:
       - POSTGRES_USER=root
       - POSTGRES_PASSWORD=abc123
