nginx 作为动态反向代理?

nginx as dynamic reverse proxy?

我想这样配置 nginx:

请求 http://nginx-proxy-server.com/location1/filename.bin 代理到 http://location1.my-application-server.com/filename.bin

我怎样才能做到这一点?

location ~ ^/(.+)/(.*)$ {
    resolver 1.1.1.1 8.8.8.8;
    proxy_pass http://.my-application-server.com/$is_args$args;
}