Compile entrypoint for compactness

FROM debian:bookworm as entrypoint

RUN apt update && apt install -y \

    build-essential \

    libpython3-dev \

    patchelf \

    python3-venv

WORKDIR /build

RUN python3 -m venv venv

RUN venv/bin/python3 -m pip install nuitka

RUN --mount=source=entrypoint.py,target=entrypoint.py \

    venv/bin/python3 -m nuitka \

    --static-libpython=yes \

    --follow-imports \

    entrypoint.py

FROM debian:bookworm

LABEL org.opencontainers.image.title="Postfix"

RUN --mount=source=install.bash,target=/install /install "${POSTFIX_VERSION}"

COPY master.cf /etc/postfix/

COPY entrypoint.py /bin/entrypoint

COPY --from=entrypoint /build/entrypoint.bin /bin/entrypoint

ENTRYPOINT ["/bin/entrypoint"]