Update Dockerfile

Dockerfile

@@ -1,8 +1,14 @@
-# USE SPECIFIC VERSION (Fixes the missing file crash)
-FROM python:3.9-bullseye
+# 1. Use Debian Bullseye (Stable Linux) instead of the Python image
+# This ensures Python and Tkinter versions match perfectly.
+FROM debian:bullseye
 
-# 1. Install system dependencies
+# 2. Prevent interactive prompts during installation
+ENV DEBIAN_FRONTEND=noninteractive
+
+# 3. Install Python, Tkinter, and GUI tools all from the system package manager
 RUN apt-get update && apt-get install -y \
+    python3 \
+    python3-pip \
     python3-tk \
     xvfb \
     x11vnc \
@@ -10,39 +16,41 @@ RUN apt-get update && apt-get install -y \
     novnc \
     net-tools \
     scrot \
+    dos2unix \
     && rm -rf /var/lib/apt/lists/*
 
-# 2. Fix the 403 Error (Missing Index)
-# Force NoVNC to show the viewer by default
+# 4. Fix the 403 Error (Missing Index)
 RUN ln -s /usr/share/novnc/vnc.html /usr/share/novnc/index.html
 
-# 3. Set up work directory
+# 5. Set up work directory
 WORKDIR /app
 
-# 4. Copy your python files
+# 6. Copy files
 COPY . .
 
-# 5. Install Python requirements
-RUN pip install --no-cache-dir -r requirements.txt
+# 7. Install Python requirements
+# We use --break-system-packages because we are intentionally using the system python
+RUN pip3 install --no-cache-dir --break-system-packages -r requirements.txt
 
-# 6. Create the user
+# 8. Create the user (ID 1000)
 RUN useradd -m -u 1000 user
 
-# 7. GENERATE STARTUP SCRIPT (Fixes permissions & line endings)
+# 9. GENERATE STARTUP SCRIPT
+# We explicitly call 'python3' here
 RUN echo '#!/bin/bash' > start.sh && \
     echo 'export DISPLAY=:1' >> start.sh && \
     echo 'Xvfb :1 -screen 0 1440x960x24 &' >> start.sh && \
     echo 'sleep 2' >> start.sh && \
     echo 'fluxbox &' >> start.sh && \
-    echo 'python main.py &' >> start.sh && \
+    echo 'python3 main.py &' >> start.sh && \
     echo 'x11vnc -display :1 -nopw -forever -quiet &' >> start.sh && \
     echo '/usr/share/novnc/utils/launch.sh --vnc localhost:5900 --listen 7860' >> start.sh && \
     chmod +x start.sh
 
-# 8. Transfer ownership to user
+# 10. Fix permissions
 RUN chown -R user:user /app
 
-# 9. Switch to user and run
+# 11. Switch to user and run
 USER user
 ENV HOME=/home/user \
     PATH=/home/user/.local/bin:$PATH