init.d/

neutron-server 是 Upstart 支持的系统服务脚本，核心部分为

case "$1" in
  start)
    test "$ENABLED" = "true" || exit 0
    log_daemon_msg "Starting neutron server" "neutron-server"
    start-stop-daemon -Sbmv --pidfile $PIDFILE --chdir $DAEMON_DIR --exec $DAEMON -- $DAEMON_ARGS
    log_end_msg $?
    ;;
  stop)
    test "$ENABLED" = "true" || exit 0
    log_daemon_msg "Stopping neutron server" "neutron-server"
    start-stop-daemon --stop --oknodo --pidfile ${PIDFILE}
    log_end_msg $?
    ;;
  restart|force-reload)
    test "$ENABLED" = "true" || exit 1
    $0 stop
    sleep 1
    $0 start
    ;;
  status)
    test "$ENABLED" = "true" || exit 0
    status_of_proc -p $PIDFILE $DAEMON neutron-server && exit 0 || exit $?
    ;;
  *)
    log_action_msg "Usage: /etc/init.d/neutron-server {start|stop|restart|force-reload|status}"
    exit 1
    ;;
esac