Update Dockerfile

Dockerfile

@@ -23,15 +23,15 @@
 # Use the official Ubuntu image.
 FROM ubuntu:20.04
 
-# Set the timezone
+# 设置时区
 ENV TZ=Etc/UTC
 RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
 
-# Pre-seed the keyboard layout
+# 预设键盘布局
 RUN echo "keyboard-configuration keyboard-configuration/layout select us" | debconf-set-selections
 RUN echo "keyboard-configuration keyboard-configuration/variant select English (US)" | debconf-set-selections
 
-# Install dependencies in non-interactive mode
+# 安装依赖项（不安装 gdm3）
 RUN DEBIAN_FRONTEND=noninteractive apt-get update && apt-get install -y \
     xfce4 \
     xfce4-goodies \
@@ -43,21 +43,21 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update && apt-get install -y \
     python3-pip \
     && rm -rf /var/lib/apt/lists/*
 
-# Install noVNC and websockify
+# 安装 noVNC 和 websockify
 RUN pip3 install noVNC websockify
 
-# Set up VNC
+# 设置 VNC
 ENV USER=root
 ENV DISPLAY=:1
 ENV VNC_PASSWORD=password
 
-# Set up VNC server
+# 设置 VNC 服务器
 RUN mkdir -p /root/.vnc && \
     echo $VNC_PASSWORD | vncpasswd -f > /root/.vnc/passwd && \
     chmod 600 /root/.vnc/passwd
 
-# Expose VNC and noVNC ports
+# 暴露 VNC 和 noVNC 端口
 EXPOSE 5901 6080
 
-# Start VNC server and noVNC
+# 启动 VNC 服务器和 noVNC
 CMD ["sh", "-c", "vncserver $DISPLAY -geometry 1280x800 -depth 24 && websockify --web=/usr/local/lib/python3.8/dist-packages/novnc/ 6080 localhost:5901"]