Dockerfile

# ─── Stage 1: Builder ───────────────────────────────────────────────
FROM python:3.11-slim AS builder

WORKDIR /build

COPY requirements.txt .
RUN pip install --no-cache-dir --prefix=/install -r requirements.txt

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

LABEL maintainer="admin@nomenclature.dz"
LABEL description="API Nomenclature Produits Pharmaceutiques"

# Security: run as non-root
RUN groupadd -r appuser && useradd -r -g appuser -d /app -s /sbin/nologin appuser

WORKDIR /app

# Copy installed packages from builder
COPY --from=builder /install /usr/local

# Copy application code
COPY app/ ./app/
COPY alembic/ ./alembic/
COPY alembic.ini .

# Create directory for SQLite database (dev mode)
RUN mkdir -p /app/data && chown -R appuser:appuser /app

USER appuser

# Default environment variables
ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    APP_NAME="Nomenclature API" \
    APP_VERSION="1.0.0" \
    DEBUG=false

EXPOSE 8000

HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/health')" || exit 1

CMD ["gunicorn", "-w", "4", "-k", "uvicorn.workers.UvicornWorker", \
     "--bind", "0.0.0.0:8000", "--timeout", "600", "--graceful-timeout", "120", \
     "--access-logfile", "-", "app.main:app"]