anchor.diff:  
   # npm
   # Create alias "node" of "nodejs" because currently nodejs is installed, but legacy modules access to "node".
  -RUN apt-get update                                       && \
  +# https://nodejs.org/en/download/package-manager/
  +RUN curl -sL https://deb.nodesource.com/setup_8.x | bash - && \
  +    apt-get update                                       && \
       apt-get install -y nodejs npm fonts-ipaexfont-gothic && \
       ln -s /usr/bin/nodejs /usr/bin/node                  && \
       npm i -g bower grunt-cli yarn                        && \
  
positive.code: # Install Apache modules
  RUN a2enmod rewrite \
              proxy proxy_http proxy_ajp \
              remoteip headers 
  # Disable unnessary extensions
  RUN a2dismod dav dav_fs cgi ssl
  
  
negative.code: MAINTAINER kujiy
  
  # アップデート
  RUN apt-get update -y            \
   && apt-get install apt-utils -y \
   && apt-get autoremove -y        \
   && apt-get clean all
  