Dockerfile

FROM python:3.9-slim

# Create non-root user
RUN useradd -m streamlituser

WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    curl \
    software-properties-common \
    git \
    libgl1 \
    && rm -rf /var/lib/apt/lists/*

# Set up config dirs and set permissions
RUN mkdir -p /app/.streamlit /app/.config /app/src && \
    chown -R streamlituser:streamlituser /app

# Set environment variables
ENV HOME=/app
ENV XDG_CONFIG_HOME=/app/.config

# Switch to non-root user
USER streamlituser

# Copy files after switching to the user to preserve ownership
COPY --chown=streamlituser:streamlituser requirements.txt ./
COPY --chown=streamlituser:streamlituser src/ ./src/

# Install dependencies
RUN pip install --no-cache-dir -r requirements.txt

EXPOSE 8501

HEALTHCHECK CMD curl --fail http://localhost:8501/_stcore/health || exit 1

ENTRYPOINT ["streamlit", "run", "src/streamlit_app.py", "--server.port=8501", "--server.address=0.0.0.0"]