anchor.diff:  # disable non-docker runtimes by default
   RUN systemctl disable containerd && systemctl disable crio && rm /etc/crictl.yaml
   # enable docker which is default
  -RUN systemctl enable docker
  +RUN systemctl enable docker.service && systemctl enable podman.socket
   # making SSH work for docker container 
   # based on https://github.com/rastasheep/ubuntu-sshd/blob/master/18.04/Dockerfile
   RUN mkdir /var/run/sshd
  
positive.code:     clean-install cri-o cri-o-runc
  
  # install podman
  RUN sh -c "echo 'deb https://dl.bintray.com/afbjorklund/podman focal main' > /etc/apt/sources.list.d/podman.list" && \
      curl -L https://bintray.com/user/downloadSubjectPublicKey?username=afbjorklund -o afbjorklund-public.key.asc && \
      apt-key add - < afbjorklund-public.key.asc && \
      clean-install podman=1.9.3~1
  
  # automount service
  COPY automount/minikube-automount /usr/sbin/minikube-automount
  
negative.code: # create docker user for minikube ssh. to match VM using "docker" as username
  RUN adduser --ingroup docker --disabled-password --gecos '' docker 
  RUN adduser docker sudo
  RUN adduser docker podman
  RUN echo '%sudo ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers
  USER docker
  RUN mkdir /home/docker/.ssh
  