Nginx配置监听443以外的其他端口

Question

我正在尝试将Nginx服务器配置为在443以外的其他端口上接受ssl连接。

问题是：

我已经配置了nginx，以便可以在https://example.com访问我的后端应用程序。对https://example.com的呼叫被重定向到http：// localhost：9000，我的前台在此启动。

我在http：// localhost：8380的该服务器上启动了一个qgis服务器，我希望https://example.com:8380引导我到该地址（http：// localhost：8380）。

我试图做这样的事情，但是没有成功：

server {
    listen        443 ssl;
    server_name   example.com;

    client_max_body_size 5m;

    add_header Strict-Transport-Security    "max-age=31536000; includeSubDomains" always;
    add_header X-Frame-Options              SAMEORIGIN;
    add_header X-Content-Type-Options       nosniff;
    add_header X-XSS-Protection             "1; mode=block";

    ssl_protocols               TLSv1 TLSv1.1 TLSv1.2;
    ssl_ciphers                 HIGH:!aNULL:!MD5;
    ssl_certificate             /etc/nginx/certs/example.com.crt;
    ssl_certificate_key         /etc/nginx/certs/example.com.key;
    ssl_session_timeout         10m;
    ssl_session_cache           shared:SSL:10m;


    location / {

        proxy_pass          http://localhost:9000;

        proxy_set_header    X-Real-IP           $remote_addr;
        proxy_set_header    X-Forwarded-For     $proxy_add_x_forwarded_for;
        proxy_set_header    X-Forwarded-Proto   $scheme;
        proxy_set_header    X-Forwarded-Host    $host;
        proxy_set_header    X-Forwarded-Port    $server_port;
        proxy_set_header    X-NginX-Proxy       true;

        proxy_redirect off;
    }
}

server {
    listen        8380 ssl;
    server_name   example.com;

    client_max_body_size 5m;

    add_header Strict-Transport-Security    "max-age=31536000; includeSubDomains" always;
    add_header X-Frame-Options              SAMEORIGIN;
    add_header X-Content-Type-Options       nosniff;
    add_header X-XSS-Protection             "1; mode=block";

    ssl_protocols               TLSv1 TLSv1.1 TLSv1.2;
    ssl_ciphers                 HIGH:!aNULL:!MD5;
    ssl_certificate             /etc/nginx/certs/example.com.crt;
    ssl_certificate_key         /etc/nginx/certs/example.com.key;
    ssl_session_timeout         10m;
    ssl_session_cache           shared:SSL:10m;


    location / {

        proxy_pass          http://localhost:8380;

        proxy_set_header    X-Real-IP           $remote_addr;
        proxy_set_header    X-Forwarded-For     $proxy_add_x_forwarded_for;
        proxy_set_header    X-Forwarded-Proto   $scheme;
        proxy_set_header    X-Forwarded-Host    $host;
        proxy_set_header    X-Forwarded-Port    $server_port;
        proxy_set_header    X-NginX-Proxy       true;

        proxy_redirect off;
    }
}

server {
    listen        80;
    server_name   _;
    return 301 https://$host$request_uri;
}

我在做什么错了？