anchor.diff:  
   ENV \
   COMPOSER_HOME=/tmp \
  +COMPOSER_ALLOW_SUPERUSER=true \
   APP_ENV=prod \
   ILIOS_DATABASE_URL=mysql://ilios:ilios@db/ilios \
   ILIOS_DATABASE_MYSQL_VERSION=5.7 \
  
positive.code:     --no-interaction \
      --no-suggest \
      --classmap-authoritative \
      && /usr/bin/composer clear-cache \
      && /var/www/ilios/bin/console cache:warmup
  
  # switch back to the root user to finish up
  USER root
  
  # revert the 'www-data' user's shell to its default
  RUN \
      chsh -s /usr/sbin/nologin www-data
  
  # launch apache httpd as a foreground service
  CMD ["apache2-foreground"]
  
negative.code: # Override monolog to send errors to stdout
  COPY ./docker/monolog.yaml /var/www/ilios/config/packages/prod
  
  WORKDIR /var/www/ilios
  
  RUN \
      /usr/bin/composer install \
      --working-dir /var/www/ilios \
  