anchor.diff:   && apt-get install neovim \
    && :
   
  +COPY docker-entrypoint.sh /usr/local/bin
   COPY labo-setup /home/shun/bin
   
   USER shun
  -WORKDIR /home/shun
  -RUN HOME=/home/shun /home/shun/bin/labo-setup
  -
  -
  -COPY docker-entrypoint.sh /usr/local/bin
  +RUN /home/shun/bin/labo-setup
   
   USER root
  -RUN ln -sf /usr/share/zoneinfo/Asia/Tokyo /etc/localtime
  -ENV LANG ja_JP.UTF-8
  -EXPOSE 22
   
   ENTRYPOINT ["docker-entrypoint.sh"]
   CMD ["/usr/sbin/sshd","-D"]
  
positive.code:  && apt-get clean \
   && :
  
  
  RUN : \
   && useradd shun \
   && usermod -aG sudo -s /bin/zsh shun \
   && echo '%sudo	ALL=(ALL:ALL) NOPASSWD: ALL' > /etc/sudoers.d/sudo-nopasswd \
   && mkdir -p /home/shun/.ssh \
   && mkdir -p /home/shun/bin \
   && touch /home/shun/.ssh/authorized_keys \
   && chown shun:shun -R /home/shun \
   && chmod 700 /home/shun/.ssh \
   && chmod 600 /home/shun/.ssh/authorized_keys \
   && :
  
  
  RUN : \
   && set -x \
   && apt-get install -y \
        apt-transport-https \
        ca-certificates \
   && apt-get clean \
   && :
  
  RUN : \
   && apt-key adv --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D \
   && echo "deb https://apt.dockerproject.org/repo ubuntu-xenial main" > /etc/apt/sources.list.d/docker.list \
   && apt-get update \
   && apt-get install -y \
        docker-engine \
   && apt-get clean \
   && :
  
  
  RUN : \
   && set -x \
   && apt-get install -y \
  
negative.code: FROM ubuntu:16.10
  MAINTAINER shun
  
  EXPOSE 22
  
  ENV LSB_RELEASE yakkety
  ENV LANG ja_JP.UTF-8
  
  # setup home
  RUN : \
   && useradd shun \
   && usermod -aG sudo -s /bin/zsh shun \
   && echo '%sudo	ALL=(ALL:ALL) NOPASSWD: ALL' > /etc/sudoers.d/sudo-nopasswd \
   && mkdir -p /home/shun/.ssh \
   && mkdir -p /home/shun/bin \
   && touch /home/shun/.ssh/authorized_keys \
   && chown shun:shun -R /home/shun \
   && chmod 700 /home/shun/.ssh \
   && chmod 600 /home/shun/.ssh/authorized_keys \
   && :
  
  # basic packages
  RUN : \
   && set -x \
   && apt-get update \
  