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#!/sbin/openrc-run
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# Copyright 1999-2014 Gentoo Foundation
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# Distributed under the terms of the BSD license
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extra_started_commands="reload"
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depend() {
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need net
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use rabbitmq redis logger dns
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}
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CELERYD_ENABLED=${CELERYD_ENABLED:-"no"}
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CELERYD_PID_FILE=${CELERYD_PID_FILE:-"/run/celery/celeryd@%n.pid"}
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CELERYD_LOG_FILE=${CELERYD_LOG_FILE:-"/var/log/celery/celeryd@%n.log"}
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CELERYD_LOG_LEVEL=${CELERYD_LOG_LEVEL:-"INFO"}
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CELERYD_NODES=${CELERYD_NODES:-"celery"}
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CELERYBEAT_ENABLED=${CELERYBEAT_ENABLED:-"no"}
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CELERYBEAT_PID_FILE=${CELERYBEAT_PID_FILE:-"/run/celery/celerybeat.pid"}
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CELERYBEAT_LOG_FILE=${CELERYBEAT_LOG_FILE:-"/var/log/celery/celerybeat.log"}
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CELERYBEAT_LOG_LEVEL=${CELERYBEAT_LOG_LEVEL:-"INFO"}
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export CELERY_LOADER
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CELERYD_MULTI=${CELERYD_MULTI:-"celery multi"}
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CELERYCTL=${CELERYCTL:-"celery"}
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CELERYBEAT=${CELERYBEAT:-"celery beat"}
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CELERYD_OPTS="${CELERYD_OPTS}"
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CELERYBEAT_OPTS="${CELERYBEAT_OPTS} -f ${CELERYBEAT_LOG_FILE} -l ${CELERYBEAT_LOG_LEVEL}"
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create_dirs() {
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local logfile="${1}"
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local pidfile="${2}"
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local logdir=$(dirname ${logfile})
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local piddir=$(dirname ${pidfile})
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checkpath -d -q -m 0750 -o ${CELERY_USER:-"root"}:${CELERY_GROUP:-"root"} ${logdir} ${piddir}
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}
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[ -n "${CELERY_USER}" ] && DAEMON_OPTS="${DAEMON_OPTS} --uid=${CELERY_USER}"
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[ -n "${CELERY_GROUP}" ] && DAEMON_OPTS="${DAEMON_OPTS} --gid=${CELERY_GROUP}"
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checkconfig() {
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if [ ! -c /dev/null ]; then
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eerror "/dev/null is not a character device!"
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return 1
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fi
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if [ -z "${CELERY_PROJDIR}" ]; then
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eerror "Missing CELERY_PROJDIR variable"
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return 1
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fi
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yesno "${CELERYD_ENABLED}" && \
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create_dirs "${CELERYD_LOG_FILE}" "${CELERYD_PID_FILE}"
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yesno "${CELERYBEAT_ENABLED}" && \
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create_dirs "${CELERYBEAT_LOG_FILE}" "${CELERYBEAT_PID_FILE}"
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return 0
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}
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celery_chdir() {
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[ -n "${CELERY_PROJDIR}" ] && cd "${CELERY_PROJDIR}"
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}
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wait_pid () {
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local pidfile=${1}
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local timeout=${STOPTIMEOUT:-"10"}
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local PID=$(cat "${pidfile}" 2>/dev/null)
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while [ -n "${PID}" ] && [ "${timeout}" -ge 1 ]; do
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kill -0 ${PID} 2>/dev/null || break
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kill -TERM "${PID}"
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timeout=$((${timeout} - 1))
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sleep 0.5
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done
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[ "${timeout}" -lt 1 ] && return 1
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[ -f ${pidfile} ] && rm -f ${pidfile}
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return 0
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}
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# celeryd
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start_workers() {
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yesno "${CELERYD_ENABLED}" || return 0
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${CELERYD_MULTI} start ${CELERYD_NODES} ${DAEMON_OPTS} \
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--pidfile="${CELERYD_PID_FILE}" \
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--logfile="${CELERYD_LOG_FILE}" \
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--loglevel="${CELERYD_LOG_LEVEL}" \
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${CELERYD_OPTS}
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}
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stop_workers() {
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yesno "${CELERYD_ENABLED}" || return 0
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local timeout=${STOPTIMEOUT:-"10"}
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${CELERYD_MULTI} stop ${CELERYD_NODES} --pidfile="${CELERYD_PID_FILE}" || return 1
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# Wait for each node
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for node in ${CELERYD_NODES}; do
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local pidfile=${CELERYD_PID_FILE/\%n/${node}}
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local PID=$(cat "${pidfile}" 2>/dev/null)
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while [ -n "${PID}" ] && [ "${timeout}" -ge 1 ]; do
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kill -0 ${PID} 2>/dev/null || break
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timeout=$((${timeout} - 1))
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sleep 0.5
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done
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done
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[ "${timeout}" -lt 1 ] && return 1
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return 0
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}
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restart_workers() {
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yesno "${CELERYD_ENABLED}" || return 0
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${CELERYD_MULTI} restart ${CELERYD_NODES} ${DAEMON_OPTS} \
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--pidfile="${CELERYD_PID_FILE}" \
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--logfile="${CELERYD_LOG_FILE}" \
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--loglevel="${CELERYD_LOG_LEVEL}" \
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${CELERYD_OPTS}
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}
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# celerybeat
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start_beat() {
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yesno "${CELERYBEAT_ENABLED}" || return 0
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ebegin "Starting celerybeat"
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${CELERYBEAT} ${CELERYBEAT_OPTS} ${DAEMON_OPTS} --detach \
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--pidfile="${CELERYBEAT_PID_FILE}"
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eend ${?}
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}
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stop_beat() {
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yesno "${CELERYBEAT_ENABLED}" || return 0
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ebegin "Stopping celerybeat"
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if [ -f "${CELERYBEAT_PID_FILE}" ]; then
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wait_pid "${CELERYBEAT_PID_FILE}"
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else
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ewarn "not running"
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fi
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eend ${?}
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}
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start() {
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local cr=0
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checkconfig || return 1
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ebegin "Starting ${SVCNAME}"
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eindent
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celery_chdir && \
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start_workers && \
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start_beat || cr=1
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eoutdent
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eend ${cr}
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}
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stop() {
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local cr=0
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checkconfig || return 1
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ebegin "Stopping ${SVCNAME}"
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eindent
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celery_chdir
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stop_workers || cr=1
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stop_beat || cr=1
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eoutdent
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eend ${cr}
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}
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reload() {
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local cr=0
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checkconfig || return 1
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ebegin "Restarting ${SVCNAME}"
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eindent
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celery_chdir
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restart_workers || cr=1
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stop_beat && start_beat || cr=1
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eoutdent
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eend ${cr}
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}
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status() {
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checkconfig || return 1
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celery_chdir && \
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${CELERYCTL} status
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}
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