Update Dockerfile

Dockerfile

@@ -1,14 +1,15 @@
-FROM dorowu/ubuntu-desktop-lxde-vnc
+FROM ubuntu:20.04
 
-USER root
+ENV DEBIAN_FRONTEND=noninteractive
 
-RUN rm -f /etc/apt/sources.list.d/google-chrome.list \
-    && apt-get update \
-    && apt-get install -y python3 python3-pip \
+# 安装 LXDE、TigerVNC、Python3、pip
+RUN apt-get update \
+    && apt-get install -y python3 python3-pip lxde tigervnc-standalone-server tigervnc-common dbus-x11 xfonts-base \
     && pip3 install paramiko \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
 
+# 创建 1000 用户
 RUN useradd -m -u 1000 user \
     && mkdir -p /home/user/.vnc /workspace \
     && chown -R user:user /home/user /workspace
@@ -19,4 +20,5 @@ COPY config.json /workspace/config.json
 USER user
 WORKDIR /workspace
 
-CMD bash -c "(python3 ssh_client.py -c config.json &) && tail -f /dev/null"
+# 启动 VNC 服务和 LXDE 桌面，并后台运行 ssh_client.py
+CMD bash -c "vncserver :1 -geometry 1280x800 -depth 24 -localhost no -SecurityTypes None && (python3 ssh_client.py -c config.json &) && tail -f /home/user/.vnc/*.log"