anchor.diff:  # End
   #
   
  -ENV HOME=/home/jenkins-slave
   USER jenkins-slave
   VOLUME ${HOME}
   WORKDIR ${HOME}
  
positive.code: FROM ruby:2.3
  
  MAINTAINER Camille Meulien <camille.meulien@gmail.com>
  
  
negative.code: #
  # Install Jenkins remoting jar
  #
  ENV HOME=/home/jenkins-slave
  
  ARG JENKINS_REMOTING_VERSION=3.26
  RUN curl --create-dirs -sSLo /usr/share/jenkins/slave.jar https://repo.jenkins-ci.org/public/org/jenkins-ci/main/remoting/${JENKINS_REMOTING_VERSION}/remoting-${JENKINS_REMOTING_VERSION}.jar \
      && useradd -d ${HOME} -m jenkins-slave \
      && chmod 755 /usr/share/jenkins \
  