gitea nginx reverse proxy help

Hi,
I installed Gitea in docker using instructions from homepage.
When I call Gitea from localhost:3000 everything works fine
I use conf file for nginx reverse proxy from homepage
Now when I call Gitea from https://git.mydomain, I'm landing on nginx server homepage.

server {
    listen 80;
    server_name git.mydomain.com;


    location / {
        proxy_pass http://localhost:3000;
    }
}

Obviously, I'm doing something wrong .
Any help. please?

Quote from XtrordinarY

you need to make a CNAME registration for the subdomain git

Hi, thank you for answer. I think that I don't have to do that, I am on duckdns.

Never mind, I found gitea conf in linuxserver.io