Dockerfile

FROM python:__PYTHON_VERSION__-slim as builder

ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1

RUN apt-get update && \
    apt-get install -y --no-install-recommends gcc

WORKDIR /app
COPY . .
RUN pip install --no-cache-dir setuptools wheel && \
    pip wheel --no-cache-dir \
              --no-deps \
              --wheel-dir /app/.wheels \
              --requirement requirements.txt && \
    python setup.py bdist_wheel && \
    cp dist/*.whl /app/.wheels

# --[[ NEXT STAGE
FROM python:__PYTHON_VERSION__-slim

WORKDIR /app
COPY --from=builder /app/.wheels /app/.wheels
RUN pip install --no-cache /app/.wheels/* && \
    rm -rf /app/.wheels && \
    addgroup --gid 1001 --system app && \
    adduser --no-create-home \
            --shell /bin/false \
            --disabled-password \
            --uid 1001 \
            --system \
            --group \
            app
USER app

ENTRYPOINT ["python", "-OO", "-m", "__PACKAGE_LOWER__"]
CMD ["server"]