Update Dockerfile

Dockerfile

@@ -1,21 +1,21 @@
 FROM python:3.9
 
+# Create a non-root user
 RUN useradd -m -u 1000 user
 USER user
 ENV PATH="/home/user/.local/bin:$PATH"
 
 WORKDIR /app
 
+# Copy and install requirements first for caching
 COPY --chown=user ./requirements.txt requirements.txt
 RUN pip install --no-cache-dir --upgrade -r requirements.txt
 
+# Copy the rest of the application
 COPY --chown=user . /app
 
-# Install Flask
-RUN pip install flask gunicorn pymupdf tiktoken
+# Set the Flask app entry point for the 'flask run' command
+ENV FLASK_APP=flask_app.py
 
-# Expose default port
-EXPOSE 7860
-
-# Run with Gunicorn
-CMD ["gunicorn", "-w", "4", "-b", "0.0.0.0:7860", "flask_app:app"]
+# Run the Flask app on port 7860 (common for HF Spaces) and bind to all interfaces
+CMD ["python", "-m", "flask", "run", "--host", "0.0.0.0", "--port", "7860"]