Dockerfile

# Use official lightweight Python image
FROM python:3.11-slim

# Set working directory
WORKDIR /app

# Copy and install dependencies first (better caching)
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy your app code
COPY . .

# Expose the port Hugging Face expects (usually 7860, but Flask defaults to 5000 → we override)
EXPOSE 7860

# Important: Hugging Face requires the app to listen on 0.0.0.0 and $PORT (usually 7860)
# So we override Flask's run command
ENV PORT=7860

# Run Flask – important flags!
CMD ["python", "app.py"]