How to implement urlManager for automatic subdomains?

Question

Yii

Hello!
I’ve been dripping for a long time, tell me how you can make aliases of different subdomains on YII2
When you enter moscow.site.ru -> in the contact information, information from the database (Company) was displayed if this url was available, the contact information of the Moscow office was displayed
When entering, for example, kazan.site.ru information about the office in Kazan was loaded.

I understand that you first need to configure the domain of the form *.site.ru on a server with support for automatic subdomains
, but I still don’t understand in UrlManager and how to bring this whole thing into the controller