anchor.diff:  ARG SONAR_DEPENDENCY_CHECK_PLUGIN=sonar-dependency-check-plugin
   ARG SONAR_DEPENDENCY_CHECK_PLUGIN_VERSION=1.0.2
   ARG SONAR_FINDBUGS_PLUGIN=sonar-findbugs-plugin
  -ARG SONAR_FINDBUGS_PLUGIN_VERSION=3.4.4
  +ARG SONAR_FINDBUGS_PLUGIN_VERSION=3.5.0
   ARG SONAR_GIT_PLUGIN=sonar-scm-git-plugin
   ARG SONAR_GIT_PLUGIN_VERSION=1.2
   ARG SONAR_GROOVY_PLUGIN=sonar-groovy-plugin
  
positive.code:     curl -o $SONARQUBE_PLUGINS/$SONAR_DEPENDENCY_CHECK_PLUGIN-$SONAR_DEPENDENCY_CHECK_PLUGIN_VERSION.jar -fSL \
        https://github.com/stevespringett/dependency-check-sonar-plugin/releases/download/sonar-dependency-check-$SONAR_DEPENDENCY_CHECK_PLUGIN_VERSION/$SONAR_DEPENDENCY_CHECK_PLUGIN-$SONAR_DEPENDENCY_CHECK_PLUGIN_VERSION.jar && \
      curl -o $SONARQUBE_PLUGINS/$SONAR_FINDBUGS_PLUGIN-$SONAR_FINDBUGS_PLUGIN_VERSION.jar -fSL \
        https://github.com/SonarQubeCommunity/sonar-findbugs/releases/download/$SONAR_FINDBUGS_PLUGIN_VERSION/$SONAR_FINDBUGS_PLUGIN-$SONAR_FINDBUGS_PLUGIN_VERSION.jar && \
      curl -o $SONARQUBE_PLUGINS/$SONAR_GIT_PLUGIN-$SONAR_GIT_PLUGIN_VERSION.jar -fSL \
        https://sonarsource.bintray.com/Distribution/$SONAR_GIT_PLUGIN/$SONAR_GIT_PLUGIN-$SONAR_GIT_PLUGIN_VERSION.jar && \
      curl -o $SONARQUBE_PLUGINS/$SONAR_GROOVY_PLUGIN-$SONAR_GROOVY_PLUGIN_VERSION.jar -fSL \
  
negative.code: MAINTAINER Martin Ford <ford.j.martin@gmail.com>
  
  ARG SONAR_USER=sonar
  ARG SONAR_VERSION=6.4
  ARG SONARQUBE_HOME=/opt/sonarqube
  ARG SONARQUBE_DATA=$SONARQUBE_HOME/data
  ARG SONARQUBE_EXTENSIONS=$SONARQUBE_HOME/extensions
  