anchor.diff:      && git config --global color.ui auto \
       && git config --global push.default simple
   
  +# Copy Slurm configuration files into the container
   COPY slurm.conf /etc/slurm/slurm.conf
   COPY gres.conf /etc/slurm/gres.conf
   COPY slurmdbd.conf /etc/slurm/slurmdbd.conf
   COPY supervisord.conf /etc/
   
  +# Mark externally mounted volumes
   VOLUME ["/var/lib/mysql", "/var/lib/slurmd", "/var/spool/slurmd", "/var/log/slurm"]
   
   COPY docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh
  
positive.code:     && yum clean all \
      && rm -rf /var/cache/yum
  
  RUN set -ex \
      && wget https://www.python.org/ftp/python/2.6.9/Python-2.6.9.tgz \
      && tar xzf Python-2.6.9.tgz \
  
negative.code: ARG PYTHON_VERSIONS="2.6 2.7 3.4 3.5 3.6"
  ENV PATH "/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/bin"
  
  # Install YUM dependency packages
  RUN set -ex \
      && yum makecache fast \
      && yum -y update \
  