anchor.diff:          php7.1-xml \
           php7.1-mcrypt \
           php7.1-zip \
  -        php7.1-common \
  -        php7.1-xml \
           php-memcached \
           php7.1-mcrypt \
           php7.1-mongodb \
  
positive.code:         cron \
          git \
          curl \
          vim \
          nano \
          nodejs \
  
negative.code: 
  # Install "software-properties-common" (for the "add-apt-repository")
  RUN apt-get update && apt-get install -y \
      software-properties-common \
      supervisor \
  && apt-get clean; rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* /usr/share/doc/*
  
  # Add the "PHP 7" ppa
  RUN add-apt-repository -y \
  