anchor.diff:  
   # Now we can do our Nagios and Apache work
   
  -ENV NAGIOS_VERSION 4.2.0
  +ENV NAGIOS_VERSION 4.4.1
   ENV NAGIOS_PLUGINS_VERSION 2.1.2
   ENV NAGIOS_HOME /usr/local/nagios
   ENV NAGIOS_USER nagios
  
positive.code: FROM centos:centos7
  MAINTAINER devops@signiant.com
  
  # make sure we're running latest of everything
  RUN yum update -y
  
  # Install wget which we need later
  RUN yum install -y wget
  
  # Install EPEL
  RUN rpm -ivh https://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-8.noarch.rpm
  
  # Install a base set of packages from the default repo
  COPY yum-packages.list /tmp/yum-packages.list
  RUN chmod +r /tmp/yum-packages.list
  RUN yum install -y -q `cat /tmp/yum-packages.list`
  
  # Install PIP - useful everywhere
  RUN /usr/bin/curl -O https://bootstrap.pypa.io/get-pip.py
  
negative.code: 	&& make install \
  	&& make install-config \
  	&& make install-commandmode \
  	&& cp sample-config/httpd.conf /etc/httpd/conf.d/nagios.conf \
    && make clean \
    && cd /tmp \
    && rm -rf nagios-$NAGIOS_VERSION
  
  RUN cd /tmp && tar -zxvf nagios-plugins.tar.gz \
      && cd nagios-plugins-$NAGIOS_PLUGINS_VERSION \
  	&& ./configure --prefix=${NAGIOS_HOME} --with-openssl=/usr/bin/openssl \
  	&& make \
  	&& make install \
  	&& chown -R ${NAGIOS_USER}:${NAGIOS_GROUP} ${NAGIOS_HOME}/libexec \
    && make clean \
    && cd /tmp \
    && rm -rf nagios-plugins-$NAGIOS_PLUGINS_VERSION
  
  RUN echo "use_timezone=$NAGIOS_TIMEZONE" >> ${NAGIOS_HOME}/etc/nagios.cfg && echo "SetEnv TZ \"${NAGIOS_TIMEZONE}\"" >> /etc/httpd/conf.d/nagios.conf
  
  