anchor.diff:  USER root
   RUN test -z "${BUILD_DEPS}" \
    || ( \
  -      apt-get update && apt-get install -y -q ${BUILD_DEPS} \
  +      apt-get update && apt-get install -y -q ${BUILD_DEPS} && apt-get -y -q clean \
       )
   
   WORKDIR ${APP_HOME}
  
positive.code:  && chown -R ${USER_NAME}: ${USER_HOME} \
   && apt-get -y -q clean
  
  RUN apt-get install -y -q openjdk-8-jre
  
  USER ${USER_NAME}
  
  
negative.code:  && gem update --system  \
   && ( bundler --version || gem install bundler ) \
   && bundle config --global jobs `grep -c processor /proc/cpuinfo` \
   && bundle config --global cache_all true \
   && gem cleanup all
  
  COPY Gemfile Gemfile.lock xcflushd.gemspec ${APP_HOME}/
  COPY lib/xcflushd/version.rb ${APP_HOME}/lib/xcflushd/
  