anchor.diff:  # Use phusion/baseimage with a specific version as base image.
  -# See https://github.com/phusion/baseimage-docker/blob/master/Changelog.md for a list of version numbers.
  -# FROM phusion/baseimage:<VERSION>
  -FROM phusion/baseimage:0.9.19
  +# Pick a version from the releases page:
  +# https://github.com/phusion/baseimage-docker/releases
  +FROM phusion/baseimage:0.11
   
   # Use baseimage-docker's init system.
   CMD ["/sbin/my_init"]
   
   # BEGIN Build instructions =============================================================================================
  -
  -# Enable SSH.
  -RUN rm -f /etc/service/sshd/down
  -
  -# Regenerate SSH host keys. baseimage-docker does not contain any, so you
  -# have to do that yourself. You may also comment out this instruction; the
  -# init system will auto-generate one during boot.
  -RUN /etc/my_init.d/00_regen_ssh_host_keys.sh
   
   # Install nginx mainline.
   # "We recommend that in general you deploy the NGINX mainline branch at all times." - nginx.com
  
positive.code: 
  # Add php-fpm daemon.
  RUN mkdir /etc/service/php-fpm
  RUN echo '#!/usr/bin/env bash\nservice php7.0-fpm start' > /etc/service/php-fpm/run
  RUN chmod +x /etc/service/php-fpm/run
  
  # Add homepage.
  
negative.code: \n\
      location ~ \.php$ {\n\
          include snippets/fastcgi-php.conf;\n\
          fastcgi_pass unix:/run/php/php7.3-fpm.sock;\n\
      }\n\
  }'\
  > /etc/nginx/sites-enabled/default
  