Dockerfile

# Use Python 3.9 slim image as base
FROM python:3.9-slim

# Set working directory
WORKDIR /app

# Install system dependencies including curl for health check
RUN apt-get update && apt-get install -y \
    gcc \
    g++ \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements first for better caching
COPY requirements.txt .

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

# Copy all application files
COPY app.py .
COPY src/ ./src/
COPY CLAUDE.md .

# Expose Streamlit port
EXPOSE 8501

# Configure Streamlit for development
ENV STREAMLIT_SERVER_PORT=8501
ENV STREAMLIT_SERVER_ADDRESS=0.0.0.0
ENV STREAMLIT_SERVER_HEADLESS=true
ENV STREAMLIT_BROWSER_GATHER_USAGE_STATS=false
ENV STREAMLIT_SERVER_FILE_WATCHER_TYPE=poll
ENV STREAMLIT_SERVER_RUN_ON_SAVE=true

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
    CMD curl --fail http://localhost:8501/_stcore/health || exit 1

# Run the application with auto-reload
CMD ["streamlit", "run", "app.py", "--server.fileWatcherType", "poll"]