anchor.diff: -FROM arm64v8/centos
  +FROM arm64v8/debian
   
   #-----------------------------------------------------------------------------
   # Cohorte Base image ARM
   #
   # Contains: 
  -# - Centos7 
  +# - Debian Stretch 
   # - Oracle JVM 8 
   # - Python 3.4
   #
   # Installed tools:
  -# - systemd (in place of fakesystemd) see https://hub.docker.com/_/centos/
   # - vim
   # - wget
   # - tar
   # - nc
   # - python 3.4
   #
  -# UPDATES:
  -# - MOD_BD_20161013 moving from centos7.1.x to centos7.2.15.11 
  -#      (needs systemd v232 - installed 219)
   #-----------------------------------------------------------------------------
   
   # meta-data
  
positive.code: # installation du systemd au lieu du fakesystemd
  # ceci est necessaire pour pouvoir lancer mysql et openldap comme un service OS
  # avec les commandes "service" et "systemctl".
  RUN yum -y update
  RUN yum -y swap -- remove fakesystemd -- install systemd systemd-libs
  RUN yum clean all; \
  (cd /lib/systemd/system/sysinit.target.wants/; for i in *; \
  do [ $i == systemd-tmpfiles-setup.service ] || rm -f $i; done); \
  rm -f /lib/systemd/system/multi-user.target.wants/*;\
  rm -f /etc/systemd/system/*.wants/*;\
  rm -f /lib/systemd/system/local-fs.target.wants/*; \
  rm -f /lib/systemd/system/sockets.target.wants/*udev*; \
  rm -f /lib/systemd/system/sockets.target.wants/*initctl*; \
  rm -f /lib/systemd/system/basic.target.wants/*;\
  rm -f /lib/systemd/system/anaconda.target.wants/*;
  
  # installer d'autres outils
  RUN yum -y install vim wget tar nc && yum clean all 
  RUN yum install -y epel-release
  RUN yum install -y python34
  
  # Installer Java 8 (Oracle)
  # inspired from: https://hub.docker.com/r/cooniur/java/
  
negative.code: 
  # force rebuilind all this Dockerfile by changing the date
  ENV REFRESHED_AT 20161013_1730
  ENV JAVA_VERSION 8u40
  ENV JAVA_LONG_VERSION 8u40-b26
  ENV JAVA_HOME /opt/java
  