Dockerfile

FROM python:3.9-slim

# Set working directory
WORKDIR /app

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

# Set environment variables to redirect cache to local directory (avoids permission issues)
ENV XDG_CACHE_HOME=/app/.cache
ENV TRANSFORMERS_CACHE=/app/.cache
ENV HF_HOME=/app/.cache
ENV STREAMLIT_CONFIG_DIR=/app/.streamlit

# Create cache and config directories with open permissions
RUN mkdir -p /app/.cache /app/.streamlit && chmod -R 777 /app

# Copy requirements and app code
COPY requirements.txt ./
COPY src/ ./src/

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

# Expose Streamlit default port
EXPOSE 8501

# Healthcheck for Hugging Face Spaces
HEALTHCHECK CMD curl --fail http://localhost:8501/_stcore/health || exit 1

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