FROM python:3.7.2-alpine AS builder

RUN apk add --no-cache --virtual .build-deps \
    build-base \
    libffi-dev \
    openssl-dev \
    linux-headers

ENV PYROOT /pyroot
ENV PATH $PYROOT/bin:$PATH
ENV PYTHONUSERBASE $PYROOT
RUN pip install --user crossbar

FROM haizaar/python-minimal:3.7.2-alpine3.8-2 AS prod

RUN apk add --no-cache openssl libffi

ENV PYROOT /pyroot
ENV PATH $PYROOT/bin:$PATH
ENV PYTHONPATH $PYROOT/lib/python:$PATH
# This is crucial for pkg_resources to work
ENV PYTHONUSERBASE $PYROOT

# Finally, copy artifacts
COPY --from=builder $PYROOT/lib/ $PYROOT/lib/
COPY --from=builder $PYROOT/bin/ $PYROOT/bin/

ENTRYPOINT ["crossbar"]