symfony create new project

app/src/Kernel.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace App;
+
+use Symfony\Bundle\FrameworkBundle\Kernel\MicroKernelTrait;
+use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
+use Symfony\Component\HttpKernel\Kernel as BaseKernel;
+use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
+
+class Kernel extends BaseKernel
+{
+    use MicroKernelTrait;
+
+    protected function configureContainer(ContainerConfigurator $container): void
+    {
+        $container->import('../config/{packages}/*.yaml');
+        $container->import('../config/{packages}/'.$this->environment.'/*.yaml');
+
+        if (is_file(\dirname(__DIR__).'/config/services.yaml')) {
+            $container->import('../config/services.yaml');
+            $container->import('../config/{services}_'.$this->environment.'.yaml');
+        } elseif (is_file($path = \dirname(__DIR__).'/config/services.php')) {
+            (require $path)($container->withPath($path), $this);
+        }
+    }
+
+    protected function configureRoutes(RoutingConfigurator $routes): void
+    {
+        $routes->import('../config/{routes}/'.$this->environment.'/*.yaml');
+        $routes->import('../config/{routes}/*.yaml');
+
+        if (is_file(\dirname(__DIR__).'/config/routes.yaml')) {
+            $routes->import('../config/routes.yaml');
+        } elseif (is_file($path = \dirname(__DIR__).'/config/routes.php')) {
+            (require $path)($routes->withPath($path), $this);
+        }
+    }
+}