Update Dockerfile

Dockerfile

@@ -2,4 +2,11 @@ FROM debian:bullseye
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
     lxde tigervnc-standalone-server novnc curl wget sudo \
- && apt-get clean && rm -rf /var/lib/apt/lists/*
+ && apt-get clean && rm -rf /var/lib/apt/lists/*
+
+RUN useradd -m -u 1000 user
+RUN mkdir -p /home/user/.vnc
+ARG VNC_PWD="default_password"
+RUN echo $VNC_PWD | vncpasswd -f > /home/user/.vnc/passwd && \
+    chmod 600 /home/user/.vnc/passwd && \
+    chown -R user:user /home/user/.vnc