Dockerfile

# Fill in the base image with the correct Python version (e.g., python:3.9)
FROM python:3.9-slim

# Fill in the username to be created (e.g., user)
RUN useradd -m -u 1000 appuser

# Blank #3: Specify the username for subsequent commands (e.g., user)
USER appuser

# Fill in the username in the PATH environment variable (e.g., user)
ENV PATH="/home/appuser/.local/bin:$PATH"

# Set working directory
WORKDIR /app

# Use the same username for file ownership when copying requirements (e.g., user)
COPY --chown=appuser ./requirements.txt requirements.txt
RUN pip install --no-cache-dir --upgrade -r requirements.txt

# Use the same username for file ownership when copying the app files (e.g., user)
COPY --chown=appuser . /app

# Start the Streamlit app on port 7860, the default port expected by Spaces
CMD ["streamlit", "run", "app.py", "--server.port=7860", "--server.address=0.0.0.0"]
# Reference: https://huggingface.co/docs/hub/en/spaces-sdks-docker