anchor.diff:      echo "user ALL=(ALL)      NOPASSWD: ALL" >> /etc/sudoers.d/user && \
       chmod 440 /etc/sudoers.d/user
   
  -RUN wget https://dev.mysql.com/get/mysql-apt-config_${mysql_apt_version}_all.deb && \
  +RUN update-locale LANG=ja_JP.UTF-8 LANGUAGE=ja_JP:
  +
  +RUN curl -s -LO https://dev.mysql.com/get/mysql-apt-config_${mysql_apt_version}_all.deb && \
       echo 4 | dpkg -i mysql-apt-config_${mysql_apt_version}_all.deb
   
  -RUN sudo apt-get update && \
  -    apt-get install -y mysql-client mysql-shell
  +RUN apt-get update && \
  +    apt-get install -y mysql-client mysql-shell && \
  +    apt-get clean
   
   USER user
   
  
positive.code: ARG mysql_apt_version=0.8.16-1
  
  EXPOSE 3306
  
  RUN apt-get update && \
      apt-get install -y --no-install-recommends \
  
negative.code:                     gnupg \
                      lsb-release \
                      ca-certificates \
                      language-pack-ja \
                      tzdata \
                      && \
      apt-get clean
  
  