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#!/bin/sh
PREFIX=
. "$PREFIX/lib/libalpine.sh"
usage() {
cat <<__EOF__
usage: setup-ntp [-h] [-c choice of NTP daemon]
Setup NTP time synchronization
options:
-h Show this help
-c Choice of NTP daemon: chrony openntpd none
__EOF__
exit 1
}
while getopts "hc:" opt; do
case $opt in
c) ntpchoice="$OPTARG";;
h) usage;;
esac
done
if [ -z "$ntpchoice" ]; then
echo -n "Which NTP client to run? ('openntpd', 'chrony' or 'none') [chrony] "
default_read ntpchoice "chrony"
fi
pkgs="$ntpchoice"
case "$ntpchoice" in
none|abort)
exit 0
;;
chrony)
if apk info --installed --quiet acf-core; then
pkgs="$pkgs acf-chrony"
fi
svc=chronyd
;;
openntpd)
svc=ntpd
;;
esac
apk add -q $pkgs
rc-update add $svc default
rc-service $svc start
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