站點 NGINX 不工作錯誤顯示 504 網關超時

Question

我已經購買了 AWS linux 2 服務器來托管我的 Web 應用程序

我已經發布了我的 Web node.js 應用程序並希望在默認情況下運行 IP

我在 /etc/nginx/sites-available/migrate.test.com 中配置了以下內容

# the IP(s) on which your node server is running. I chose port 3000.
upstream migrate.test.com {
    server privateIPaddress:3000;
    keepalive 8;
}

# the nginx server instance
server {
    listen 80;
    listen [::]:80;
    server_name migrate.test.com;
    access_log /var/log/nginx/migrate.test.com.log;

    # pass the request to the node.js server with the correct headers
    # and much more can be added, see nginx config options
    location / {
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header Host $http_host;
      proxy_set_header X-NginX-Proxy true;
      proxy_read_timeout 3600;
      proxy_pass http://migrate.test.com/;
      proxy_redirect off;
    }
 }


```````

**My app.js code** 
```````
var http = require('http');

http.createServer(function (req, res) {
    res.writeHead(200, {'Content-Type': 'text/plain'});
    res.end('Hello World\n');
}).listen(3000, "privateIPaddress");
console.log('Server running success');

``````


please check by browser output 
[output][1]


  [1]: https://i.stack.imgur.com/1BD5X.png

Answer 1

指定節點應用程序正在偵聽的端口3000 ，因為http的默認值為80 -

proxy_pass http://migrate.test.com:3000;

此外，如果您的 nginx 服務器與您的節點應用程序服務器在同一台機器上運行，您還可以執行 -

proxy_pass http://localhost:3000;

https://docs.nginx.com/nginx/admin-guide/web-server/reverse-proxy/