anchor.diff:  
     kill -9 $pid || true
     rm -rf $PIDFILE || true
  +elif [ $evacuate_exit_code -eq 28 ]; then
  +   echo "$(date): Drain timed out"
  +   kill -9 $pid || true
  +   rm -rf $PIDFILE || true
   else
     exit 1
   fi
  
positive.code: exec 2>> $LOGFILE
  
  evacuate() {
    curl --fail --silent http://$ADDRESS/evacuate >/dev/null 2>&1
  }
  
  heartbeat() {
  
negative.code:     echo "$(date): evacuation failed"
    fi
  
    #See https://www.pivotaltracker.com/story/show/165747144/comments/202416034
    echo $exit_code >&3
  }
  
  