anchor.diff:  
   #
   RUN echo "root:root"|chpasswd
  -CMD ["/usr/sbin/init"]
  +#CMD ["/usr/sbin/init"]
  +CMD ["/bin/bash"]
   
  +
  
positive.code: RUN dnf -y install mariadb-server
  RUN mysql_install_db
  RUN chown -R mysql.mysql /var/lib/mysql
  RUN systemctl start mariadb.service && systemctl enable mariadb.service
  RUN mysqladmin -u root password '$DB_PASS'
  
  # User environment
  
negative.code: RUN dnf clean all
  RUN dnf -y update
  RUN dnf -y install initscripts
  RUN dnf -y install htop less file rpmconf git-all bash-completion
  
  # C++ development
  RUN dnf -y install gcc-c++ cmake boost-devel xapian-core-devel soci-mysql-devel soci-sqlite3-devel \
  