diff --git a/Dockerfile b/Dockerfile
index 787a80e..9fd7c28 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:bookworm
+FROM debian:bookworm-slim
 
 # 切换 Debian 镜像源为腾讯云源，更新包列表并安装依赖
 RUN sed -i 's/deb.debian.org/mirrors.tencent.com/g' /etc/apt/sources.list.d/debian.sources \
@@ -16,7 +16,7 @@ COPY ["bt.sh", "init_mysql.sh", "/"]
 # 转换启动脚本
 RUN dos2unix /bt.sh && dos2unix /init_mysql.sh
 
-# 下载并安装宝塔面板及 lnmp 环境
+# 下载并安装宝塔面板及 nginx
 RUN curl -sSO https://download.bt.cn/install/install_panel.sh \
     && echo y | bash install_panel.sh -P 8888 --ssl-disable \
     && mkdir /lnmp \
@@ -40,8 +40,8 @@ RUN echo btpanel | bt 6 \
 
 ENTRYPOINT ["/bin/sh","-c","/bt.sh"]
 
-# 暴漏所有端口
-EXPOSE 0-65535
+# 暴漏特定端口
+EXPOSE 22 80 443 888 3306 8888
 
 # 健康检查
 HEALTHCHECK --interval=5s --timeout=3s CMD prot="http"; if [ -f "/www/server/panel/data/ssl.pl" ]; then prot="https"; fi; curl -k -i $prot://127.0.0.1:$(cat /www/server/panel/data/port.pl)$(cat /www/server/panel/data/admin_path.pl) | grep -E '(200|404)' || exit 1
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