ARG pyVersion=latest
 FROM python:${pyVersion}
 ARG pyVersion
 RUN addgroup testuser \
   && adduser \
      --home /home/testuser \
      --ingroup testuser \
      --disabled-password \
      --gecos "" \
      testuser
 
 USER testuser
 RUN mkdir /home/testuser/src
 WORKDIR /home/testuser/src
 COPY --chown=testuser ./ s3cmd
 COPY --chown=testuser .s3cfg /home/testuser/
 USER root
 WORKDIR /home/testuser/src/s3cmd
 RUN pip install .
 USER testuser
 
 ENTRYPOINT ["python","run-tests.py"]
 
 RUN echo Built with Python version $(python --version)