没用基础版版测试，但简单来说，你可以这么干，把配置文件都挪出来放到启动脚本websocket-server里:

#!/usr/bin/env php
<?php

defined('YII_DEBUG') or define('YII_DEBUG', true);
defined('YII_ENV') or define('YII_ENV', 'dev');
defined('STDIN') or define('STDIN', fopen('php://stdin', 'r'));
defined('STDOUT') or define('STDOUT', fopen('php://stdout', 'w'));
defined('STDERR') or define('STDERR', fopen('php://stderr', 'w'));

require __DIR__ . '/vendor/autoload.php';
require __DIR__ . '/vendor/yiisoft/yii2/Yii.php';

//require __DIR__ . '/common/config/bootstrap.php';
//require __DIR__ . '/websocket/config/bootstrap.php';
//$config = yii\helpers\ArrayHelper::merge(
//    require __DIR__ . '/common/config/main.php',
//    require __DIR__ . '/common/config/main-local.php',
//    require __DIR__ . '/websocket/config/main.php',
//    require __DIR__ . '/websocket/config/main-local.php'
//);

Yii::setAlias('@immusen/websocket', __DIR__ . '/vendor/immusen/yii2-swoole-websocket');
Yii::setAlias('@websocket', __DIR__ . '/websocket');
$config = [
    'id' => 'websocket',
    'basePath' => __DIR__ . '/websocket',
    'bootstrap' => ['log'],
    'controllerNamespace' => 'websocket\controllers',
    'components' => [
        'errorHandler' => ['class' => 'yii\console\ErrorHandler'],
        'log' => [
            'targets' => [
                [
                    'class' => 'yii\log\FileTarget',
                    'levels' => ['error', 'warning'],
                ],
            ],
        ],
    ],
    'params' => [
        'listen' => 8721,
        'daemonize' => 0,
        'redis' => [
            'host' => '127.0.0.1',
            'port' => '6379',
//        'auth' => 'passwd',
            'pool_size' => 10,
        ],
    ],
];

$application = new immusen\websocket\Application($config);
$exitCode = $application->run();
exit($exitCode);

一个直接返回order_status的数值， 比如：50
一个返回的结果$order_status是OrderModel的一个实例，那个数值50需要用$order_status->order_status来取