42 lines
1,013 B
Text
42 lines
1,013 B
Text
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#!/bin/sh
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set -e
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PATH=/sbin:/bin:/usr/sbin:/usr/bin
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# This is a heuristic: The idea is that if a static interface is brought
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# up, that is a major event, and we can put in some extra effort to fix
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# the system time. Feel free to change this, especially if you regularly
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# bring up new network interfaces.
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if [ "$METHOD" = static ]; then
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OPTS="-b"
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fi
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if [ "$METHOD" = loopback ] || [ "$METHOD" = none ]; then
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exit 0
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fi
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# only run on primary network interface
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if [ "$IFACE" != {{ ansible_default_ipv4.interface }} ]; then
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exit 0
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fi
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# Check whether ntpdate was removed but not purged; it's useless to wait for
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# it in that case.
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if [ ! -x /usr/sbin/ntpdate-debian ] && [ -d /usr/sbin ]; then
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exit 0
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fi
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(
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# This is for the case that /usr will be mounted later.
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if [ -r /lib/udev/hotplug.functions ]; then
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. /lib/udev/hotplug.functions
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wait_for_file /usr/sbin/ntpdate-debian
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fi
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# Avoid running more than one at a time
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flock -n /run/lock/ntpdate /usr/sbin/ntpdate-debian -s $OPTS 2>/dev/null || :
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) &
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