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#!/sbin/openrc-run
# Copyright 1999-2017 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
extra_commands="configtest"
extra_started_commands="reload"
description="Lightweight graphite metrics router and aggregator."
description_configtest="Run carbon-c-relay's internal config check."
description_reload="Reload the carbon-c-relay configuration without losing connections."
routes_config=${ROUTES_FILE:-/etc/${SVCNAME}.conf}
command="/usr/bin/carbon-c-relay"
command_args="-f ${routes_config} ${EXTRA_OPTS}"
pidfile="/run/carbon-c-relay/${SVCNAME}.pid"
logfile=${LOGFILE:-/var/log/${SVCNAME}.log}
user=${USER:-carbon}
group=${GROUP:-carbon}
depend() {
need net
use dns
}
start_pre() {
if [ "${RC_CMD}" != "restart" ]; then
configtest || return 1
fi
touch "${logfile}"
mkdir -p "${pidfile%/*}"
chown ${user}:${group} "${logfile}" "${pidfile%/*}"
}
stop_pre() {
if [ "${RC_CMD}" = "restart" ]; then
configtest || return 1
fi
}
stop_post() {
rm -f "${pidfile}"
}
start() {
ebegin "Starting ${SVCNAME}"
start-stop-daemon --start --pidfile "${pidfile}" \
--user ${user} --group ${group} \
--exec ${command} -- -D -P "${pidfile}" -l "${logfile}" \
${command_args}
eend $?
}
stop() {
ebegin "Stopping ${SVCNAME}"
# migration path
local pfile=${pidfile}
[ -e /run/carbon-c-relay.pid ] && pfile="/run/carbon-c-relay.pid"
start-stop-daemon --stop --exec ${command} --pidfile "${pfile}"
eend $?
}
reload() {
configtest || return 1
ebegin "Refreshing ${SVCNAME}'s configuration"
kill -HUP $(cat "${pidfile}") >/dev/null 2>&1
eend $? "Failed to reload ${SVCNAME}"
}
configtest() {
ebegin "Checking ${SVCNAME}'s configuration"
${command} -f "${routes_config}" -t < /dev/null > /dev/null
eend $? "failed, please correct errors above"
}
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