FROM debian:buster

RUN useradd -d /home/matemat -m matemat
RUN apt-get update -qy
RUN apt-get install -y --no-install-recommends python3-dev python3-pip python3-coverage python3-setuptools build-essential
RUN pip3 install wheel pycodestyle mypy
ADD . /home/matemat
RUN chown matemat:matemat -R /home/matemat
RUN pip3 install -r /home/matemat/requirements.txt

WORKDIR /home/matemat
USER matemat
CMD python3 -m matemat
EXPOSE 8080/tcp