server {
    listen       80;
    server_name *.youdomain.com;
    if ($http_host ~* "^(.*?)\.youdomain\.com$") {
           set $domain $1;
    }
     location / {
        if ($domain ~* "jenkins") {  #域名中有shop,转发到3001端口
            proxy_pass http://0.0.0.0:8080;      
        }
     }
}
原文:https://www.cnblogs.com/testopsfeng/p/13990811.html