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#!/sbin/openrc-run
# Copyright 2024-2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
: ${KNOT_RESOLVER_USER:=knot-resolver}
: ${KNOT_RESOLVER_GROUP:=knot-resolver}
: ${KNOT_RESOLVER_CONFIG:=/etc/knot-resolver/config.yaml}
command="/usr/bin/knot-resolver"
command_args="--config=${KNOT_RESOLVER_CONFIG} ${KNOT_RESOLVER_EXTRA_ARGS}"
command_user="${KNOT_RESOLVER_USER}:${KNOT_RESOLVER_GROUP}"
pidfile="/run/${RC_SVCNAME}.pid"
command_background=true
required_files="${KNOT_RESOLVER_CONFIG}"
retry="TERM/60/KILL/5"
extra_started_commands="reload"
capabilities="^cap_net_bind_service,^cap_setpcap"
name="knot-resolver manager"
description="scaleable caching DNS resolver"
depend() {
need net
use logger
provide dns
}
checkconfig() {
# Filter the output to avoid a full traceback if the schema (JSON or YAML) is incorrect. Call 'su' to check permissions too.
errors=$(su ${KNOT_RESOLVER_USER} -s /bin/sh -c \
"/usr/bin/kresctl validate --strict ${KNOT_RESOLVER_CONFIG} 2>&1" )
[ -z "${errors}" ] && return 0
case "${errors}" in
*"Error:"*)
eerror "${KNOT_RESOLVER_CONFIG} can't be parsed!"
eerror "Please verify the schema (JSON or YAML)."
;;
*)
eerror "${KNOT_RESOLVER_CONFIG} is invalid!"
eerror "${errors}"
;;
esac
return 1
}
start_pre() {
if [ "${RC_CMD}" != "restart" ]; then
checkconfig || return 1
fi
}
stop_pre() {
if [ "${RC_CMD}" = "restart" ]; then
checkconfig || return 1
fi
}
reload() {
ebegin "Force-reloading ${SVCNAME}"
/usr/bin/kresctl --config="${KNOT_RESOLVER_CONFIG}" reload --force
eend $?
}
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