anchor.diff:  # export PGB=pgbackrest;export PGB_IMAGE=$PGB/test:u20-main;PGB_REPO=~/Documents/Code/$PGB
   # docker build --squash -f $PGB_REPO/test/Dockerfile -t $PGB_IMAGE .
  -# docker run --privileged -itd --name $PGB-test -h $PGB-test -v $PGB_REPO:/home/docker/$PGB $PGB_IMAGE
  +# docker run --privileged -itd --name $PGB-test -h $PGB-test -v $PGB_REPO:/home/vagrant/$PGB $PGB_IMAGE
   FROM ubuntu:focal
   
   # Install packages
  
positive.code: # Configure sudo
  RUN echo '%docker ALL=(ALL) NOPASSWD: ALL' >> /etc/sudoers
  
  # Mount tmpfs at /home/docker/test for faster testing
  RUN sudo -u docker mkdir -m 770 /home/docker/test
  RUN echo 'tmpfs /home/docker/test tmpfs size=4096M 0 1' >> /etc/fstab
  
  # Cleanup
  RUN apt-get autoremove -y
  RUN apt-get clean
  RUN rm -rf /var/lib/apt/lists/*
  
  USER docker
  WORKDIR /home/docker
  
  ENTRYPOINT sudo rm -f /var/run/docker.pid && sudo mount -a && sudo dockerd
  
negative.code: RUN groupadd -g5000 docker
  RUN curl -fsSL https://get.docker.com | sh
  
  # Create vagrant user
  RUN adduser --ingroup=docker -uid=5000 --disabled-password --gecos \"\" vagrant
  
  # Build valgrind
  RUN export VALGRIND=valgrind-3.17.0 && \
  