anchor.diff:  ENV RAILS_ENV=production \
       HELPY_HOME=/helpy \
       HELPY_USER=helpyuser \
  -    HELPY_SLACK_INTEGRATION_ENABLED=true
  +    HELPY_SLACK_INTEGRATION_ENABLED=true \
  +    BUNDLE_PATH=/opt/helpy-bundle
   
   RUN apt-get update \
     && apt-get upgrade -y \
  
positive.code:   && rm -rf /var/lib/apt/lists/*
  
  RUN useradd --no-create-home $HELPY_USER \
    && mkdir -p $HELPY_HOME \
    && chown -R $HELPY_USER:$HELPY_USER $HELPY_HOME /usr/local/lib/ruby /usr/local/bundle
  
  WORKDIR $HELPY_HOME
  
  
negative.code: 
  RUN bundle install
  
  # manually create the /helpy/public/assets folder and give the helpy user rights to it
  # this ensures that helpy can write precompiled assets to it
  RUN mkdir -p $HELPY_HOME/public/assets \
  