nginx config for http/https proxy to localhost:3000

nginx.conf

#user  nobody;
worker_processes  1;

events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;
    send_timeout 1800;
    sendfile        on;
    keepalive_timeout  6500;

    server {
        listen       80;
        server_name  localhost;

        location / {
          proxy_pass          http://localhost:3000;
          proxy_set_header    Host              $host;
          proxy_set_header    X-Real-IP         $remote_addr;
          proxy_set_header    X-Forwarded-For   $proxy_add_x_forwarded_for;
          proxy_set_header    X-Client-Verify   SUCCESS;
          proxy_set_header    X-Client-DN       $ssl_client_s_dn;
          proxy_set_header    X-SSL-Subject     $ssl_client_s_dn;
          proxy_set_header    X-SSL-Issuer      $ssl_client_i_dn;
          proxy_set_header    X-Forwarded-Proto http;
          proxy_read_timeout 1800;
          proxy_connect_timeout 1800;
        }
    }

    # HTTPS server
    
    server {
        listen       443;
        server_name  localhost;
    
        ssl                  on;
        ssl_certificate      server.crt;
        ssl_certificate_key  server.key;

        ssl_session_timeout  5m;
    
        ssl_protocols  SSLv2 SSLv3 TLSv1;
        ssl_ciphers  ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;
        ssl_prefer_server_ciphers   on;
    
        location / {
          proxy_pass          http://localhost:3000;
          proxy_set_header    Host              $host;
          proxy_set_header    X-Real-IP         $remote_addr;
          proxy_set_header    X-Forwarded-For   $proxy_add_x_forwarded_for;
          proxy_set_header    X-Client-Verify   SUCCESS;
          proxy_set_header    X-Client-DN       $ssl_client_s_dn;
          proxy_set_header    X-SSL-Subject     $ssl_client_s_dn;
          proxy_set_header    X-SSL-Issuer      $ssl_client_i_dn;
          proxy_set_header    X-Forwarded-Proto http;
          proxy_read_timeout 1800;
          proxy_connect_timeout 1800;
        }
    }

}

how do you do reverse proxy from localhost:8080 to https://domainname.com?