55bbcc4 May 16, 2012
@ask @streeter @stpierre @jude
executable file 165 lines (130 sloc) 4.02 KB
#!/bin/sh -e
# ============================================
# celeryd - Starts the Celery worker daemon.
# ============================================
#
# :Usage: /etc/init.d/celeryd {start|stop|force-reload|restart|try-restart|status}
# :Configuration file: /etc/default/celeryd
#
# See http://docs.celeryq.org/en/latest/cookbook/daemonizing.html#init-script-celeryd
### BEGIN INIT INFO
# Provides: celeryd
# Required-Start: $network $local_fs $remote_fs
# Required-Stop: $network $local_fs $remote_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: celery task worker daemon
### END INIT INFO
#set -e
DEFAULT_PID_FILE="/var/run/celeryd@%n.pid"
DEFAULT_LOG_FILE="/var/log/celeryd@%n.log"
DEFAULT_LOG_LEVEL="INFO"
DEFAULT_NODES="celery"
DEFAULT_CELERYD="-m celery.bin.celeryd_detach"
# /etc/init.d/celeryd: start and stop the celery task worker daemon.
CELERY_DEFAULTS=${CELERY_DEFAULTS:-"/etc/default/celeryd"}
test -f "$CELERY_DEFAULTS" && . "$CELERY_DEFAULTS"
if [ -f "/etc/default/celeryd" ]; then
. /etc/default/celeryd
fi
CELERYD_PID_FILE=${CELERYD_PID_FILE:-${CELERYD_PIDFILE:-$DEFAULT_PID_FILE}}
CELERYD_LOG_FILE=${CELERYD_LOG_FILE:-${CELERYD_LOGFILE:-$DEFAULT_LOG_FILE}}
CELERYD_LOG_LEVEL=${CELERYD_LOG_LEVEL:-${CELERYD_LOGLEVEL:-$DEFAULT_LOG_LEVEL}}
CELERYD_MULTI=${CELERYD_MULTI:-"celeryd-multi"}
CELERYD=${CELERYD:-$DEFAULT_CELERYD}
CELERYCTL=${CELERYCTL:="celeryctl"}
CELERYD_NODES=${CELERYD_NODES:-$DEFAULT_NODES}
export CELERY_LOADER
if [ -n "$2" ]; then
CELERYD_OPTS="$CELERYD_OPTS $2"
fi
CELERYD_LOG_DIR=`dirname $CELERYD_LOG_FILE`
CELERYD_PID_DIR=`dirname $CELERYD_PID_FILE`
if [ ! -d "$CELERYD_LOG_DIR" ]; then
mkdir -p $CELERYD_LOG_DIR
fi
if [ ! -d "$CELERYD_PID_DIR" ]; then
mkdir -p $CELERYD_PID_DIR
fi
# Extra start-stop-daemon options, like user/group.
if [ -n "$CELERYD_USER" ]; then
DAEMON_OPTS="$DAEMON_OPTS --uid=$CELERYD_USER"
chown "$CELERYD_USER" $CELERYD_LOG_DIR $CELERYD_PID_DIR
fi
if [ -n "$CELERYD_GROUP" ]; then
DAEMON_OPTS="$DAEMON_OPTS --gid=$CELERYD_GROUP"
chgrp "$CELERYD_GROUP" $CELERYD_LOG_DIR $CELERYD_PID_DIR
fi
if [ -n "$CELERYD_CHDIR" ]; then
DAEMON_OPTS="$DAEMON_OPTS --workdir=\"$CELERYD_CHDIR\""
fi
check_dev_null() {
if [ ! -c /dev/null ]; then
echo "/dev/null is not a character device!"
exit 1
fi
}
ensure_dir() {
if [ -d "$1" ]; then
mkdir -p "$1"
chown $CELERYD_USER:$CELERYD_GROUP "$1"
chmod 02755 "$1"
fi
}
check_paths() {
ensure_dir "$(dirname $CELERYD_PID_FILE)"
ensure_dir "$(dirname $CELERYD_LOG_FILE)"
}
export PATH="${PATH:+$PATH:}/usr/sbin:/sbin"
stop_workers () {
$CELERYD_MULTI stop $CELERYD_NODES --pidfile="$CELERYD_PID_FILE"
}
start_workers () {
$CELERYD_MULTI start $CELERYD_NODES $DAEMON_OPTS \
--pidfile="$CELERYD_PID_FILE" \
--logfile="$CELERYD_LOG_FILE" \
--loglevel="$CELERYD_LOG_LEVEL" \
--cmd="$CELERYD" \
$CELERYD_OPTS
}
restart_workers () {
$CELERYD_MULTI restart $CELERYD_NODES $DAEMON_OPTS \
--pidfile="$CELERYD_PID_FILE" \
--logfile="$CELERYD_LOG_FILE" \
--loglevel="$CELERYD_LOG_LEVEL" \
--cmd="$CELERYD" \
$CELERYD_OPTS
}
case "$1" in
start)
check_dev_null
check_paths
start_workers
;;
stop)
check_dev_null
check_paths
stop_workers
;;
reload|force-reload)
echo "Use restart"
;;
status)
$CELERYCTL status $CELERYCTL_OPTS
;;
restart)
check_dev_null
check_paths
restart_workers
;;
try-restart)
check_dev_null
check_paths
restart_workers
;;
*)
echo "Usage: /etc/init.d/celeryd {start|stop|restart|try-restart|kill}"
exit 1
;;
esac
exit 0