Dockerfile

# Stage 1: Dependencies
FROM python:3.11-slim as deps

# Install system dependencies required for building Python packages
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    libpq-dev \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Stage 2: Application
FROM python:3.11-slim as runtime
WORKDIR /app

# Install system dependencies required for runtime
RUN apt-get update && apt-get install -y --no-install-recommends \
    libpq5 \
    curl \
    postgresql-client \
    redis-tools \
    && rm -rf /var/lib/apt/lists/*

# Create non-root user
RUN adduser --disabled-password --gecos "" --no-create-home appuser

# Copy installed packages from deps stage
COPY --from=deps /usr/local/lib/python3.11/site-packages /usr/local/lib/python3.11/site-packages
COPY --from=deps /usr/local/bin /usr/local/bin

# Copy application code
COPY backend/ backend/
COPY app.py .
COPY scripts/ scripts/

# Make scripts executable
RUN chmod +x scripts/*.sh

# Create data directories
RUN mkdir -p /app/data /app/logs /app/backend/data/raw && chown -R appuser:appuser /app

USER appuser

EXPOSE 8000

HEALTHCHECK --interval=30s --timeout=10s --retries=3 \
  CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/api/v1/health')"

ENTRYPOINT ["./scripts/entrypoint.sh"]
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "2"]