nginx

server {
    listen 80;
    listen [::]:80;
    server_name ~^((?<subdomain>.+)\.)?(?<domain>.+)\.171.11.100.118.xip.io$;
#    server_name ~^(?P<ci_build_ref_slug>.+)?(?<domain>.+).171.11.100.118.xip.io$;

    add_header Content-Type text/plain;

    if ($subdomain = hola) {
        return 200 'chau $subdomain $domain';
    }

   if ($subdomain = chau) {
        return 200 'hola $subdomain $domain';
    }


}