#!/bin/bash
/usr/bin/timedatectl status | grep -q "NTP service: active"
if [ $? -ne 0 ] ; then
    echo "NTP service not active"
    exit 1
fi

/usr/bin/timedatectl status | grep -q "System clock synchronized: yes"
if [ $? -ne 0 ] ; then
    echo "System clock not synchronized"
    exit 1
fi

echo "NTP is healthy"
exit 0