celery worker init.d script

celery.sh

#! /bin/bash

PNAME="$(basename $0)"
USER="jgarner1"
PIDFILE="$HOME/messaging/celery.pid"
LOGFILE="$HOME/messaging/celery.log"
AUTOSCALE="1,1"

start() {
    if [ $# -eq 1 ]
    then
        AUTOSCALE=$1
    fi
    nohup celery worker --app=tasks \
                        --hostname=%h \
                        --logfile=$LOGFILE \
                        --pidfile=$PIDFILE \
                        --autoscale=$AUTOSCALE > $LOGFILE 2> $LOGFILE &
}

stop() {
    if [ -s $PIDFILE ]
    then
        ps -u $USER -o pid,ppid | awk -v ppid=$(cat $PIDFILE) '{
            if ($1 == ppid || $2 == ppid) {
                print $1
            }
        }' | xargs kill -9
    fi
}

usage() {
    echo "Usage: $PNAME stop|start|restart"
    exit 2
}

case $1 in
    stop) stop
         ;;
    start) shift
           start $@
        ;;
    restart) shift
             stop
             start $@
        ;;
    *) usage
       ;;
esac