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#!/bin/sh
set -e
# Source debconf library.
. /usr/share/debconf/confmodule
# In Debian, this should be upgrade from 3-to-5, but the following code
# and the upgrade-4-to-5.lua file come from upstream. So I keep it like
# this for uniformity. Also, the issue relies on the lack of support on
# systemd sockets since 5.x.
# upgrade-4-to-5
export UPG_DIR=/var/lib/knot-resolver/.upgrade-4-to-5
if [ -f ${UPG_DIR}/.unfinished ] ; then
rm -f ${UPG_DIR}/.unfinished
kresd -c /usr/lib/@DEB_HOST_MULTIARCH@/knot-resolver/upgrade-4-to-5.lua >/dev/null 2>/dev/null
db_input high knot-resolver/upgrade-buster-to-bullseye || true
db_go || true
cat ${UPG_DIR}/kresd.conf.net 2>/dev/null
fi
if [ "$1" = "configure" ]; then
adduser --quiet --system --group --no-create-home --home /var/cache/knot-resolver knot-resolver
fi
# Restart any running kresd instances if the root key is updated.
# Note: if knot-resolver upstream watches this file and reloads it
# upon a change, we can and should remove this trigger.
if [ "$1" = "triggered" ]; then
if [ "$2" = "/usr/share/dns/root.key" ]; then
# systemctl of the sub-services is the preferred method to restart
deb-systemd-invoke try-restart 'kresd@*.service' || true
# but if we are running sysvinit, we can try to restart that process anyway
# (kresd.service is masked on systems that use systemd)
invoke-rc.d kresd try-restart || true
fi
fi
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
deb-systemd-invoke try-restart 'kresd@*.service' || true
invoke-rc.d kresd try-restart || true
fi
#DEBHELPER#
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