Dockerfile

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

# Set working directory
WORKDIR /app

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PYTHONPATH=/app/src

# Install system dependencies
RUN apt-get update && apt-get install -y \
    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 application code
COPY src/ ./src/
COPY .env.example .env

# Create data directory for SQLite database with proper permissions
RUN mkdir -p /app/data && \
    chmod 755 /app/data

# Create non-root user for security
RUN useradd --create-home --shell /bin/bash app \
    && chown -R app:app /app

# Switch to non-root user
USER app

# Ensure data directory is writable by app user
RUN chmod 755 /app/data

# Expose port
EXPOSE 8000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
    CMD curl -f http://localhost:8000/health || exit 1

# Run the application
CMD ["uvicorn", "src.main:app", "--host", "0.0.0.0", "--port", "8000"]