anchor.diff:  RUN echo 'yoctouser:yoctouser' | chpasswd
   RUN echo 'yoctouser ALL=(ALL) NOPASSWD:SETENV: ALL' > /etc/sudoers.d/yoctouser
   
  +USER yoctouser
  +WORKDIR /home/yoctouser
  +CMD /bin/bash
  +
   # Set up git and repo
  -USER yoctouser
   ADD --chown=yoctouser:yoctouser cookbook /tmp/cookbook/
  +
   # Set up git config --global stuff
   RUN /tmp/cookbook/system-config/vagrant-ssh-user.sh
   
  
positive.code: FROM crops/yocto:ubuntu-16.04-base
  
  LABEL description="PELUX Yocto build environment"
  
  
negative.code: 
  # Install dependencies in one command to avoid potential use of previous cache
  # like explained here: https://stackoverflow.com/a/37727984
  RUN apt-get update && \
      apt-get install -y \
          build-essential \
          chrpath \
          coreutils \
          cpio \
          curl \
          cvs \
          diffstat \
          g++-multilib \
          gawk \
          gcc-multilib \
          git-core \
          graphviz \
          help2man \
          iptables \
          iputils-ping \
          libfdt1 \
          libsdl1.2-dev \
          libxml2-utils \
          locales \
          m4 \
          openssh-server \
          python \
          python-pysqlite2 \
          python3 \
          python3-pip \
          qemu-user \
          repo \
          rsync \
          screen \
          socat \
          subversion \
          sudo \
          sysstat \
          texinfo \
          tmux \
          unzip \
          wget \
          xz-utils
  
  RUN apt-get clean
  
  # For Yocto bitbake -c testimage XML reporting
  RUN pip3 install unittest-xml-reporting
  