Yii2. How to create a subdomain during registration?

Question

Nginx

nginx web server. It is necessary to implement the creation of a subdomain when registering a user (for example, the user Vasya specified the domain vasya during registration; as a result, his profile should be available at vasya.example.com).
Tell me how it's done and how to implement it correctly?

Answer 1

There is a router in Yii2, everything is fine (comment to the previous answer).
We put alias as suggested by xmoonlight (you can on a separate part of the application if you use the advanced template).
In the router ($config->components):

'urlManager' => [
            'enablePrettyUrl' => true,
            'showScriptName' => false,
            'rules' => [
                 // остальной конфиг роутера
                'http://<login:[\w\-]+>.example.com/<action:\w+>' => 'profile/<action>', // контроллер ProfileController должен существовать, и в нем надо бы реализовать behavior (или метод init) на проверку существования пользователя с таким логином
            ],
        ],

Answer 2

DNS:
A *.domain.com
and a router at the entrance.