django-orchestra/orchestra/bin/celerybeat

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2014-05-08 16:59:35 +00:00
#!/bin/bash
# =========================================================
# celerybeat - Starts the Celery periodic task scheduler.
# =========================================================
#
# :Usage: /etc/init.d/celerybeat {start|stop|force-reload|restart|try-restart|status}
# :Configuration file: /etc/default/celerybeat or /etc/default/celeryd
#
# See http://docs.celeryproject.org/en/latest/tutorials/daemonizing.html#generic-init-scripts
### BEGIN INIT INFO
# Provides: celerybeat
# Required-Start: $network $local_fs $remote_fs postgresql celeryd
# Required-Stop: $network $local_fs $remote_fs postgresql celeryd
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: celery periodic task scheduler
### END INIT INFO
# Cannot use set -e/bash -e since the kill -0 command will abort
# abnormally in the absence of a valid process ID.
#set -e
DEFAULT_PID_FILE="/var/run/celery/beat.pid"
DEFAULT_LOG_FILE="/var/log/celery/beat.log"
DEFAULT_LOG_LEVEL="INFO"
DEFAULT_CELERYBEAT="celerybeat"
# /etc/init.d/celerybeat: start and stop the celery periodic task scheduler daemon.
if test -f /etc/default/celeryd; then
. /etc/default/celeryd
fi
if test -f /etc/default/celerybeat; then
. /etc/default/celerybeat
fi
CELERYBEAT=${CELERYBEAT:-$DEFAULT_CELERYBEAT}
CELERYBEAT_LOG_LEVEL=${CELERYBEAT_LOG_LEVEL:-${CELERYBEAT_LOGLEVEL:-$DEFAULT_LOG_LEVEL}}
# Set CELERY_CREATE_DIRS to always create log/pid dirs.
CELERY_CREATE_DIRS=${CELERY_CREATE_DIRS:-0}
CELERY_CREATE_RUNDIR=$CELERY_CREATE_DIRS
CELERY_CREATE_LOGDIR=$CELERY_CREATE_DIRS
if [ -z "$CELERYBEAT_PID_FILE" ]; then
CELERYBEAT_PID_FILE="$DEFAULT_PID_FILE"
CELERY_CREATE_RUNDIR=1
fi
if [ -z "$CELERYBEAT_LOG_FILE" ]; then
CELERYBEAT_LOG_FILE="$DEFAULT_LOG_FILE"
CELERY_CREATE_LOGDIR=1
fi
export CELERY_LOADER
CELERYBEAT_OPTS="$CELERYBEAT_OPTS -f $CELERYBEAT_LOG_FILE -l $CELERYBEAT_LOG_LEVEL"
if [ -n "$2" ]; then
CELERYBEAT_OPTS="$CELERYBEAT_OPTS $2"
fi
CELERYBEAT_LOG_DIR=`dirname $CELERYBEAT_LOG_FILE`
CELERYBEAT_PID_DIR=`dirname $CELERYBEAT_PID_FILE`
# Extra start-stop-daemon options, like user/group.
if [ -n "$CELERYBEAT_USER" ]; then
DAEMON_OPTS="$DAEMON_OPTS --uid $CELERYBEAT_USER"
fi
if [ -n "$CELERYBEAT_GROUP" ]; then
DAEMON_OPTS="$DAEMON_OPTS --gid $CELERYBEAT_GROUP"
fi
CELERYBEAT_CHDIR=${CELERYBEAT_CHDIR:-$CELERYD_CHDIR}
if [ -n "$CELERYBEAT_CHDIR" ]; then
DAEMON_OPTS="$DAEMON_OPTS --workdir $CELERYBEAT_CHDIR"
fi
export PATH="${PATH:+$PATH:}/usr/sbin:/sbin"
check_dev_null() {
if [ ! -c /dev/null ]; then
echo "/dev/null is not a character device!"
exit 75 # EX_TEMPFAIL
fi
}
maybe_die() {
if [ $? -ne 0 ]; then
echo "Exiting: $*"
exit 77 # EX_NOPERM
fi
}
create_default_dir() {
if [ ! -d "$1" ]; then
echo "- Creating default directory: '$1'"
mkdir -p "$1"
maybe_die "Couldn't create directory $1"
echo "- Changing permissions of '$1' to 02755"
chmod 02755 "$1"
maybe_die "Couldn't change permissions for $1"
if [ -n "$CELERYBEAT_USER" ]; then
echo "- Changing owner of '$1' to '$CELERYBEAT_USER'"
chown "$CELERYBEAT_USER" "$1"
maybe_die "Couldn't change owner of $1"
fi
if [ -n "$CELERYBEAT_GROUP" ]; then
echo "- Changing group of '$1' to '$CELERYBEAT_GROUP'"
chgrp "$CELERYBEAT_GROUP" "$1"
maybe_die "Couldn't change group of $1"
fi
fi
}
check_paths() {
if [ $CELERY_CREATE_LOGDIR -eq 1 ]; then
create_default_dir "$CELERYBEAT_LOG_DIR"
fi
if [ $CELERY_CREATE_RUNDIR -eq 1 ]; then
create_default_dir "$CELERYBEAT_PID_DIR"
fi
}
create_paths () {
create_default_dir "$CELERYBEAT_LOG_DIR"
create_default_dir "$CELERYBEAT_PID_DIR"
}
wait_pid () {
pid=$1
forever=1
i=0
while [ $forever -gt 0 ]; do
kill -0 $pid 1>/dev/null 2>&1
if [ $? -eq 1 ]; then
echo "OK"
forever=0
else
kill -TERM "$pid"
i=$((i + 1))
if [ $i -gt 60 ]; then
echo "ERROR"
echo "Timed out while stopping (30s)"
forever=0
else
sleep 0.5
fi
fi
done
}
stop_beat () {
echo -n "Stopping celerybeat... "
if [ -f "$CELERYBEAT_PID_FILE" ]; then
wait_pid $(cat "$CELERYBEAT_PID_FILE")
else
echo "NOT RUNNING"
fi
}
start_beat () {
echo "Starting celerybeat..."
if [ -n "$VIRTUALENV" ]; then
source $VIRTUALENV/bin/activate
fi
$CELERYBEAT $CELERYBEAT_OPTS $DAEMON_OPTS --detach \
--pidfile="$CELERYBEAT_PID_FILE"
}
case "$1" in
start)
check_dev_null
check_paths
start_beat
;;
stop)
check_paths
stop_beat
;;
reload|force-reload)
echo "Use start+stop"
;;
restart)
echo "Restarting celery periodic task scheduler"
check_paths
stop_beat
check_dev_null
start_beat
;;
create-paths)
check_dev_null
create_paths
;;
check-paths)
check_dev_null
check_paths
;;
*)
echo "Usage: /etc/init.d/celerybeat {start|stop|restart|create-paths}"
exit 64 # EX_USAGE
;;
esac
exit 0