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[ntp] enable/disable NTP long jump according to reboot type (#4582)

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- Enable NTP long jump after cold reboot.
- Disable NTP long jump after warrm/fast reboot.

Signed-off-by: Ying Xie <ying.xie@microsoft.com>
This commit is contained in:
Ying Xie 2020-05-12 12:23:47 -07:00 committed by GitHub
parent 8d200300ca
commit f52e59a032
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1 changed files with 32 additions and 0 deletions
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32
files/image_config/ntp/ntp-config.sh
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@ -1,5 +1,37 @@
#!/bin/bash
ntp_default_file='/etc/default/ntp'
ntp_temp_file='/tmp/ntp.orig'
reboot_type='cold'
function get_database_reboot_type()
{
SYSTEM_WARM_START=`/usr/bin/redis-cli -n 6 hget "WARM_RESTART_ENABLE_TABLE|system" enable`
SYSTEM_FAST_START=`/usr/bin/redis-cli -n 6 get "FAST_REBOOT|system"`
if [[ x"${SYSTEM_WARM_START}" == x"true" ]]; then
reboot_type='warm'
elif [[ x"${SYSTEM_FAST_START}" == x"1" ]]; then
reboot_type='fast'
fi
}
function modify_ntp_default
{
cp ${ntp_default_file} ${ntp_temp_file}
sed -e "$1" ${ntp_temp_file} >${ntp_default_file}
}
sonic-cfggen -d -t /usr/share/sonic/templates/ntp.conf.j2 >/etc/ntp.conf
get_database_reboot_type
if [[ x"${reboot_type}" == x"cold" ]]; then
echo "Enabling NTP long jump for reboot type ${reboot_type} ..."
modify_ntp_default "s/NTPD_OPTS='-x'/NTPD_OPTS='-g'/"
else
echo "Disabling NTP long jump for reboot type ${reboot_type} ..."
modify_ntp_default "s/NTPD_OPTS='-g'/NTPD_OPTS='-x'/"
fi
systemctl restart ntp