anchor.diff:  ENV OM_PASS '12345'
   ENV work /root/work
   ENV OM_HOME /opt/red5
  -ENV MYSQL_J_VER '5.1.42'
  +ENV MYSQL_J_VER '5.1.43'
   
   RUN cat /etc/issue
   
  
positive.code: # #############################################
  
  FROM ubuntu:16.04
  MAINTAINER Apache OpenMeetings dev team version: 3.2.1 <dev@openmeetings.apache.org>
  
  ENV OM_VER_MAJ '3'
  ENV OM_VER_MIN '3'
  ENV OM_VER_MIC '0'
  ENV OM_VERSION "${OM_VER_MAJ}.${OM_VER_MIN}.${OM_VER_MIC}"
  ENV DB_ROOT_PASS '12345'
  
negative.code: RUN apt-get -y install mysql-server mysql-client
  
  WORKDIR ${work}
  #RUN wget http://www-eu.apache.org/dist/openmeetings/${OM_VERSION}/bin/apache-openmeetings-${OM_VERSION}.tar.gz
  RUN wget https://builds.apache.org/view/M-R/view/OpenMeetings/job/openmeetings/lastSuccessfulBuild/apache-openmeetings-4.0.0-SNAPSHOT.tar.gz -O apache-openmeetings-${OM_VERSION}.tar.gz
  
  WORKDIR ${OM_HOME}
  RUN tar -xzf ${work}/apache-openmeetings-${OM_VERSION}.tar.gz
  