anchor.diff: -FROM centos:7 
  +# Please use the echo-api repository to open any issues with this file.
  +FROM centos:7
   LABEL authors="Oriol Martí <oriol@3scale.net>,Daniel Cesario <dcesario@redhat.com>"
   
   ENV RUBY_VERSION="rh-ruby23"
  
positive.code: RUN source /opt/echo-api/etc/scl_enable \
    && gem install -N bundler \
    && gem env \
    && bundle config --global silence_root_warning 1 
  
  ENV BASH_ENV=/opt/echo-api/etc/scl_enable \
      ENV=/opt/echo-api/etc/scl_enable \
  
negative.code:   && yum install -y centos-release-scl \
    && yum install -y \
      gcc \
      patch \
      make \
      openssl-devel \
      ${RUBY_VERSION} \
      ${RUBY_VERSION}-ruby-devel \
  