How to deploy Node site using Forever and nginx

Persistent thread running

Generally speaking, we start a server through node index.js on window cmd. As long as it is not closed, we can always access and call the interface. But on Linux, if you do not operate it for a long time or you want to perform other operations, your node service will be disconnected and users will not be able to access your website. what to do? We can install the forever module to solve it.

npm install forever -g // 全局安装forever模块

Just change the original startup method node index.js to forever start index.js. Here are a few common commands

forever list // 列出当前所有运行的服务
forever start -w index.js // 文件改动自动重启
forever stopall // 停止所有服务
forever stop app.js //停止其中一个node app 
forever stop [id] // forever list 找到对应的id，然后

Of course there are many commands, you can check the related modules . Generally speaking, the simplest way to use it is:

forever start index.js

In this way, even if we switch to other Linux paths or exit, the node service still exists, that is, others can still access your website.

Configuring nginx

nginx is a reverse proxy server developed by the Russians and is now used by many companies around the world. For the introduction and installation of nginx, you can check the information yourself or go to the novice tutorial to learn quickly. Here, nginx has been installed on my Linux.

Next, I will use nginx to proxy the http://localhost:8089 just started by forever start index.js, that is, to access http through my domain name: //localhost:8089 This website. Check the nginx configuration file path

find / -name nginx.conf

Switch to it and enter to modify the configuration

 server {
  listen    80; # 监听端口 直接配置80即可
  server_name hellocode.xyz; # 输入域名会跳转到 http://localhost:8089
  include /etc/nginx/default.d/*.conf;
  location / {
   proxy_pass http://118.89.33.75:8089; # 你的node网站应用
  }
  error_page 404 /404.html;
    location = /40x.html {
  }
  error_page 500 502 503 504 /50x.html;
    location = /50x.html {
  }
}

Exit and check whether the configuration is correct

nginx -t

Reload nginx

nginx -s reload

Open the browser and enter the URL to access the website!

You may encounter cross-domain problems during the access process, so you need to set up the node side to support cross-domain. In the express framework, you need to customize a middleware in index.js

var allowcors = function(req, res, next) {
 res.header('access-control-allow-origin', req.headers.origin);
 res.header('access-control-allow-methods', 'get,put,post,delete,options');
 res.header('access-control-allow-headers', 'content-type');
 res.header('access-control-allow-credentials','true');
 next();
};
app.use(allowcors);//使用跨域中间件

The above is the detailed content of How to deploy Node site using Forever and nginx. For more information, please follow other related articles on the PHP Chinese website!