Dockerfile

# Imagen base con Python 3.11 (Alpine es más ligera y segura)
FROM python:3.11-slim-bookworm as builder

# Variables de entorno para Python
ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    PIP_NO_CACHE_DIR=1 \
    PIP_DISABLE_PIP_VERSION_CHECK=1

# Directorio de trabajo
WORKDIR /app

# Actualizar paquetes del sistema para parches de seguridad
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc \
    && rm -rf /var/lib/apt/lists/*

# Copiar pyproject y usarlo para instalar dependencias
COPY pyproject.toml .
COPY api/ ./api/
RUN pip install --upgrade pip setuptools wheel && \
    pip install --no-cache-dir .

# Stage 2: Runtime
FROM python:3.11-slim-bookworm

ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1

WORKDIR /app

# Copiar dependencias instaladas
COPY --from=builder /usr/local/lib/python3.11/site-packages /usr/local/lib/python3.11/site-packages
COPY --from=builder /usr/local/bin /usr/local/bin

# Copiar código fuente
COPY api/ ./api/

# Crear usuario no-root
RUN useradd -m -u 1000 appuser && chown -R appuser:appuser /app
USER appuser

# Exponer puerto
EXPOSE 8000

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
    CMD python -c "import httpx; httpx.get('http://localhost:8000/health', timeout=2.0)" || exit 1

# Comando para ejecutar la aplicación
CMD ["uvicorn", "api.main:app", "--host", "0.0.0.0", "--port", "8000"]