anchor.diff:  
   
   # # # ==== MUNGE
  -RUN apt-get install -y --no-install-recommends libmunge-dev libmunge2 munge
   
   # # # add MUNGE RSA key
   # ADD munge.key /etc/munge/
  
positive.code: 
  
  # # # ==== SLURM
  RUN apt-get install -y --no-install-recommends slurm-llnl
  
  
  
  
  
  # # # clean local package archive
  RUN apt-get clean
  
  
  
  
negative.code: # # TLS-related
  RUN apt-get -qq install -y --no-install-recommends ca-certificates debian-keyring debian-archive-keyring
  RUN apt-key update
  
  
  # # Install tools
  RUN apt-get -qq update && \
      apt-get -qq install -y --no-install-recommends make gcc bzip2 unzip gfortran \
                                                     wget curl python pkg-config perl\
  						   libmunge-dev libmunge2 munge\
  						   slurm-llnl && \
      apt-get clean
  						   
  
  # # # ==== kernel stuff
  # # RUN apt-get install linux-headers-$(uname -r)
  