etag write to file

handle query before db loaded

docker-compose.yml

@@ -2,10 +2,11 @@ services:
     ip-info:
         build: .
         ports:
-            - "8080:8080"
+            - "28080:8080"
         restart: always
         volumes:
             - ./data:/app/data
         environment:
+            - GIN_MODE=release
             - GIN_TRUSTED_PROXY_IP=127.0.0.1
             - TZ=Asia/Ho_Chi_Minh