Ubuntu Sidekiq Service Init.d script

sidekiq-init.d.txt

--- /etc/init.d/sidekiq - SAVE File

#!/bin/bash
# sidekiq    Init script for Sidekiq
# chkconfig: 345 100 75
#
# Description: Starts and Stops Sidekiq message processor for Stratus application.
#
# User-specified exit parameters used in this script:
#
# Exit Code 5 - Incorrect User ID
# Exit Code 6 - Directory not found


# You will need to modify these
# constants
USER=ubuntu (or whoever)
APP="myapp"
APP_ROOT="/var/www/${APP}"
RAILS_ENV=production
PID_FILE=$APP_ROOT/pids/sidekiq.pid
LOG_FILE="$APP_ROOT/log/sidekiq.log"
LOCK_FILE="$APP_ROOT/${APP}-lock"
DESC="Sidekiq app - $RAILS_ENV"

BUNDLE="bundle"
SIDEKIQ="sidekiq"
START_CMD="$BUNDLE exec $SIDEKIQ -d -L $LOG_FILE -P $PID_FILE -e $RAILS_ENV "
CMD="cd ${APP_ROOT}; ${START_CMD} "

TIMEOUT=60

RETVAL=0


start() {

  status
  if [ $? -eq 1 ]; then

    [ `id -u` == '0' ] || (echo "$SIDEKIQ runs as root only .."; exit 5)
    [ -d $APP_ROOT ] || (echo "$APP_ROOT not found!.. Exiting"; exit 6)
    cd $APP_ROOT
    echo "Starting $SIDEKIQ message processor .. "

    su -c "$CMD" - $USER

    RETVAL=$?
    #Sleeping for 8 seconds for process to be precisely visible in process table - See status ()
    sleep 8
    [ $RETVAL -eq 0 ] && touch $LOCK_FILE
    return $RETVAL
  else
    echo "$SIDEKIQ message processor is already running .. "
  fi


}

stop() {

    echo "Stopping $SIDEKIQ message processor .."
    SIG="INT"
    kill -$SIG `cat  $PID_FILE`
    RETVAL=$?
    [ $RETVAL -eq 0 ] && rm -f $LOCK_FILE
    return $RETVAL
}

status() {
  ps -p `cat $PID_FILE` | grep `cat $PID_FILE`
  return $?
}


case "$1" in
    start)
        start
        ;;
    stop)
        stop
        ;;
    status)
        status

        if [ $? -eq 0 ]; then
             echo "$SIDEKIQ message processor is running .."
             RETVAL=0
         else
             echo "$SIDEKIQ message processor is stopped .."
             RETVAL=1
         fi
        ;;
    *)
        echo "Usage: $0 {start|stop|status}"
        exit 0
        ;;
esac
exit $RETVAL


--- END SAVE FILE


-- SETUP Permissions
sudo chmod +x /etc/init.d/sidekiq
--- END SETUP Permissions


--- ADD TO startup
sudo update-rc.d sidekiq defaults
--- END ADD to startup

--- now use it
sudo service sidekiq start|stop|status