Nginx server - how to make a redirect from one domain to 2 different sites in it, 50\50?

Question

Nginx

Now the situation is something like this.
server {
listen 80;
server_name my-server-side.com;
return 301 http://my-another-site.ru;
}
The question is how to make it so that when visiting my-server-side.ru in 50% of cases the redirect occurs to http://my-another-site.ru, and in 50% to my-another-another-site.ru ?

Answer 1

nginx.org/ru/docs/http/ngx_http_split_clients_modu...
https://gist.github.com/jmervine/6077243

Answer 2

Official dock in Russian with examples The percentage of hits on each backend is set by the weights of the backends.

Answer 3

split_clients "${remote_addr}AAA" $redirectto {
               50%               domain2;
               *               domain1;
}

return 301 http://$redirectto ;