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#!/bin/sh

# Open Infrastructure: service-tools

# Copyright (C) 2014-2023 Daniel Baumann <daniel.baumann@open-infrastructure.net>
#
# SPDX-License-Identifier: GPL-3.0+
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

set -e

HOSTS="${*:-localhost}"

for HOST in ${HOSTS}
do
	case "${HOST}" in
		localhost)
			echo "Removing all leases..."

			sudo service kea-dhcp6-server stop
			sudo service kea-dhcp4-server stop

			sudo rm -f /var/lib/kea/*.csv*

			sudo service kea-dhcp6-server start
			sudo service kea-dhcp4-server start

			echo
			echo "done."
			;;

		*)
			echo "'${HOST}': Removing all leases..."

			ssh "${HOST}" \
				"sudo service kea-dhcp6-server stop; \
				sudo service kea-dhcp4-server stop; \
				sudo rm -f /var/lib/kea/*.csv*; \
				sudo service kea-dhcp6-server start; \
				sudo service kea-dhcp4-server start"

			echo
			echo "done."
			;;
	esac
done