如何使AppBundle / Service中的所有类都用作服务？

Question

我想自动将AppBundle / Service目录中的所有类添加为单独的服务。有一些样板代码，加上Symfony的安装应该做到这一点：

# makes classes in src/AppBundle available to be used as services
# this creates a service per class whose id is the fully-qualified class name
    AppBundle\:
        resource: '../../src/AppBundle/*'
        # you can exclude directories or files
        # but if a service is unused, it's removed anyway
        exclude: '../../src/AppBundle/{Entity,Repository,Tests}'

问题是即使我在Service目录中创建了一个类，我也无法在debug:container中找到它作为服务。使用以下命令添加此服务没有问题：

app.my_service:
    class: AppBundle\Service\MyService

但是如何自动添加服务，而无需单独添加服务？