anchor.diff:          # just monitor `cat'.
           script =
             ''
  -            export PATH=${pkgs.nettools}/bin:$PATH
               rm -f ${stateDir}/dummy
               mkfifo ${stateDir}/dummy
               cat ${stateDir}/dummy &
  
positive.code:             fi
            '';
  
          # Zabbix doesn't have an option not to daemonize, and doesn't
          # daemonize in a way that allows Upstart to track it.  So to
          # make sure that we notice when it goes down, we start Zabbix
  
negative.code: 
          description = "Zabbix server daemon";
  
          startOn = "filesystem";
  
          preStart =
            ''
  