anchor.diff:    && php -r "if (hash('SHA384', file_get_contents('/tmp/composer-setup.php')) \
       !== trim(file_get_contents('/tmp/composer-setup.sig'))) { unlink('/tmp/composer-setup.php'); \
       echo 'Invalid installer' . PHP_EOL; exit(1); }" \
  -  && php /tmp/composer-setup.php --filename=composer --install-dir=$COMPOSER_HOME 
  +  && php /tmp/composer-setup.php --filename=composer --install-dir=$COMPOSER_HOME
   
  -ADD commands/xvfb.init.sh /etc/init.d/xvfb 
  +ADD commands/xvfb.init.sh /etc/init.d/xvfb
   
   ADD commands/start-nginx-ci-project.sh /usr/bin/start-nginx-ci-project
   RUN chmod +x /usr/bin/start-nginx-ci-project
  
positive.code: 
  ADD configs/supervisord.conf /etc/supervisor/supervisord.conf
  
  ADD configs/nginx-default-site /etc/nginx/sites-available/default 
  
  
  RUN npm set progress=false
  
negative.code: FROM ubuntu:bionic
  MAINTAINER Chilio
  
  ENV DEBIAN_FRONTEND noninteractive
  ENV DEBCONF_NONINTERACTIVE_SEEN true
  