anchor.diff:        echo "deb https://research.cs.wisc.edu/htcondor/debian/8.9/buster buster contrib" >>/etc/apt/sources.list; \
         apt-get update; \
         apt-get install -y --no-install-recommends condor; \
  -      apt-get -y remove gnupg2 wget alien && \
  -      apt-get clean && \
  -      rm -rf /var/lib/apt/lists/*; \
  +      apt-get -y remove gnupg2 wget alien; \
  +      apt-get clean; \
       fi
   
   # CERN Slurm backend requires SSH to headnode
  -# hadolint ignore=DL3008, DL4006
  +# hadolint ignore=DL3008,DL4006
   RUN if echo "$COMPUTE_BACKENDS" | grep -q "slurmcern"; then \
         export DEBIAN_FRONTEND=noninteractive ;\
         apt-get -yq install openssh-client \
  
positive.code: ARG COMPUTE_BACKENDS=kubernetes
  
  # CERN HTCondor part taken from https://gitlab.cern.ch/batch-team/condorsubmit
  # hadolint ignore=DL3008, DL4006
  RUN if echo "$COMPUTE_BACKENDS" | grep -q "htcondorcern"; then \
        set -e;\
        export DEBIAN_FRONTEND=noninteractive ;\
  
negative.code: 
  # Install base image and its dependencies
  FROM python:3.8-slim
  # hadolint ignore=DL3008,DL3009,DL3013
  RUN apt-get update && \
      apt-get install -y --no-install-recommends vim-tiny && \
      pip install --upgrade pip
  