/
celeryd
executable file
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/
celeryd
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#!/bin/bash -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
#
# To configure celeryd you probably need to tell it where to chdir.
#
# EXAMPLE CONFIGURATION
# =====================
#
# this is an example configuration for a Python project:
#
# /etc/default/celeryd:
#
# # Where to chdir at start.
# CELERYD_CHDIR="/opt/Myproject/"
#
# # Extra arguments to celeryd
# CELERYD_OPTS="--time-limit 300"
#
# # Name of the celery config module.#
# CELERY_CONFIG_MODULE="celeryconfig"
#
# EXAMPLE DJANGO CONFIGURATION
# ============================
#
# # Where the Django project is.
# CELERYD_CHDIR="/opt/Project/"
#
# # Name of the projects settings module.
# DJANGO_SETTINGS_MODULE="settings"
#
# # Path to celeryd
# CELERYD="/opt/Project/manage.py"
#
# # Extra arguments to manage.py
# CELERYD_OPTS="celeryd"
#
# AVAILABLE OPTIONS
# =================
#
# * CELERYD_OPTS
# Additional arguments to celeryd, see `celeryd --help` for a list.
#
# * CELERYD_CHDIR
# Path to chdir at start. Default is to stay in the current directory.
#
# * CELERYD_PID_FILE
# Full path to the pidfile. Default is /var/run/celeryd.pid.
#
# * CELERYD_LOG_FILE
# Full path to the celeryd logfile. Default is /var/log/celeryd.log
#
# * CELERYD_LOG_LEVEL
# Log level to use for celeryd. Default is INFO.
#
# * CELERYD
# Path to the celeryd program. Default is `celeryd`.
# You can point this to an virtualenv, or even use manage.py for django.
#
# * CELERYD_USER
# User to run celeryd as. Default is current user.
#
# * CELERYD_GROUP
# Group to run celeryd as. Default is current user.
#
# * VIRTUALENV
# Full path to the virtualenv environment to activate. Default is none.
### BEGIN INIT INFO
# Provides: celeryd
# Required-Start: $network $local_fs $remote_fs
# Required-Stop: $network $local_fs $remote_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: celery task worker daemon
### END INIT INFO
set -e
DEFAULT_CELERYD="/usr/bin/celeryd"
# /etc/init.d/ssh: start and stop the celery task worker daemon.
if test -f /etc/default/celeryd; then
. /etc/default/celeryd
fi
CELERYD_LOG_FILE=${CELERYD_LOG_FILE:-${CELERYD_LOGFILE:-"/var/log/celeryd.log"}}
CELERYD_PID_FILE=${CELERYD_PID_FILE:-${CELERYD_PIDFILE:-"/var/run/celeryd.pid"}}
CELERYD_LOG_LEVEL=${CELERYD_LOG_LEVEL:-${CELERYD_LOGLEVEL:-"INFO"}}
CELERYD=${CELERYD:-$DEFAULT_CELERYD}
export CELERY_LOADER
. /lib/lsb/init-functions
CELERYD_OPTS="$CELERYD_OPTS -f $CELERYD_LOG_FILE -l $CELERYD_LOG_LEVEL"
if [ -n "$2" ]; then
CELERYD_OPTS="$CELERYD_OPTS $2"
fi
# Extra start-stop-daemon options, like user/group.
if [ -n "$CELERYD_USER" ]; then
DAEMON_OPTS="$DAEMON_OPTS --chuid $CELERYD_USER"
fi
if [ -n "$CELERYD_GROUP" ]; then
DAEMON_OPTS="$DAEMON_OPTS --group $CELERYD_GROUP"
fi
if [ -n "$CELERYD_CHDIR" ]; then
DAEMON_OPTS="$DAEMON_OPTS --chdir $CELERYD_CHDIR"
fi
# Are we running from init?
run_by_init() {
([ "$previous" ] && [ "$runlevel" ]) || [ "$runlevel" = S ]
}
check_dev_null() {
if [ ! -c /dev/null ]; then
if [ "$1" = log_end_msg ]; then
log_end_msg 1 || true
fi
if ! run_by_init; then
log_action_msg "/dev/null is not a character device!"
fi
exit 1
fi
}
export PATH="${PATH:+$PATH:}/usr/sbin:/sbin"
stop_worker () {
cmd="start-stop-daemon --stop \
--quiet \
$* \
--pidfile $CELERYD_PID_FILE"
if $cmd; then
log_end_msg 0
else
log_end_msg 1
fi
}
start_worker () {
cmd="start-stop-daemon --start $DAEMON_OPTS \
--quiet \
--oknodo \
--background \
--make-pidfile \
$* \
--pidfile $CELERYD_PID_FILE
--exec $CELERYD -- $CELERYD_OPTS"
if [ -n "$VIRTUALENV" ]; then
source $VIRTUALENV/bin/activate
fi
if $cmd; then
log_end_msg 0
else
log_end_msg 1
fi
}
case "$1" in
start)
check_dev_null
log_daemon_msg "Starting celery task worker server" "celeryd"
start_worker
;;
stop)
log_daemon_msg "Stopping celery task worker server" "celeryd"
stop_worker --oknodo
;;
reload|force-reload)
echo "Use start+stop"
;;
restart)
log_daemon_msg "Restarting celery task worker server" "celeryd"
stop_worker --oknodo --retry 30
check_dev_null log_end_msg
start_worker
;;
try-restart)
log_daemon_msg "Restarting celery task worker server" "celeryd"
set +e
stop_worker --retry 30
RET="$?"
set -e
case $RET in
0)
# old daemon stopped
check_dev_null log_end_msg
start_worker
;;
1)
# daemon not running
log_progress_msg "(not running)"
log_end_msg 0
;;
*)
# failed to stop
log_progress_msg "(failed to stop)"
log_end_msg 1
;;
esac
;;
status)
status_of_proc -p $CELERYD_PID_FILE $CELERYD celeryd && exit 0 || exit $?
;;
*)
log_action_msg "Usage: /etc/init.d/celeryd {start|stop|force-reload|restart|try-restart|status}"
exit 1
esac
exit 0