xcat-core/xCAT/postscripts/setupntp

#!/bin/sh
# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
#
#---------------------------------------------------------------------------
# setup NTP configuration on the compute nodes
#
#---------------------------------------------------------------------------
master=$MASTER
setup=0
sitemaster=$SITEMASTER
conf_file="/etc/ntp.conf"
conf_file_org="/etc/ntp.conf.org"
conf_file_backup="/etc/ntp.conf.postbackup"
logger -t xcat "Install: Setup NTP"
# if master is the sitemaster, then use the ntpservers defined in the site
# table, if they exist. If they don't exist, do not setup ntp
# else use the master which should be a service node
if [ "$master" ==  "$sitemaster" ]; then
   
  if [ $NTPSERVERS ]; then
        if [ !  -f $conf_file_org ]; then
          mv -f $conf_file $conf_file_org
        else
          mv -f $conf_file $conf_file_backup
        fi
	for i in $(echo $NTPSERVERS | tr ',' ' ')
	do
 	   echo "server $i" >>$conf_file
	   master=$i
	done 
  else
        exit 0	

  fi
else
   if [ !  -f $conf_file_org ]; then
     mv -f $conf_file $conf_file_org
   else
     mv -f $conf_file $conf_file_backup
   fi
   echo "server $master" >$conf_file
    
fi


mkdir -p /var/lib/ntp
chown ntp /var/lib/ntp

echo "driftfile /var/lib/ntp/drift
restrict 127.0.0.1
authenticate no"  >>$conf_file

#service ntpd restart 
service ntpd stop 
logger -t xcat "ntpdate -t5 $master "
ntpdate -t5 $master 
if [ "$?" != "0" ]
        then
            echo_failure
            echo
            echo "  ntpdate -t5 $master  failed"
            exit $?
fi

service ntpd start 
exit $?