anchor.diff:  	&& rm -rf /var/lib/mysql && mkdir -p /var/lib/mysql
   
   # comment out a few problematic configuration values
  -RUN sed -Ei 's/^(bind-address|log)/#&/' /etc/mysql/my.cnf
  +# don't reverse lookup hostnames, they are usually another container
  +RUN sed -Ei 's/^(bind-address|log)/#&/' /etc/mysql/my.cnf \
  +	&& echo 'skip-host-cache\nskip-name-resolve' | awk '{ print } $1 == "[mysqld]" && c == 0 { c = 1; system("cat") }' /etc/mysql/my.cnf > /tmp/my.cnf \
  +	&& mv /tmp/my.cnf /etc/mysql/my.cnf
   
   VOLUME /var/lib/mysql
  -VOLUME /run/mysqld
   
   COPY docker-entrypoint.sh /entrypoint.sh
   ENTRYPOINT ["/entrypoint.sh"]
  
positive.code: FROM debian:wheezy
  
  # add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added
  RUN groupadd -r mysql && useradd -r -g mysql mysql
  
  # FATAL ERROR: please install the following Perl modules before executing /usr/local/mysql/scripts/mysql_install_db:
  # File::Basename
  
negative.code: RUN apt-get update && apt-get install -y perl --no-install-recommends && rm -rf /var/lib/apt/lists/*
  
  # gpg: key 5072E1F5: public key "MySQL Release Engineering <mysql-build@oss.oracle.com>" imported
  RUN apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys A4A9406876FCBD3C456770C88C718D3B5072E1F5
  
  ENV MYSQL_MAJOR 5.7
  ENV MYSQL_VERSION 5.7.8-rc
  
  RUN echo "deb http://repo.mysql.com/apt/debian/ jessie mysql-${MYSQL_MAJOR}-dmr" > /etc/apt/sources.list.d/mysql.list
  
  # the "/var/lib/mysql" stuff here is because the mysql-server postinst doesn't have an explicit way to disable the mysql_install_db codepath besides having a database already "configured" (ie, stuff in /var/lib/mysql/mysql)
  # also, we set debconf keys to make APT a little quieter
  