node-nginx's Introduction

NodeNginx

Configure nginx as a web server for node js application.

Requirements

nodejs npm nginx

Steps to run on your local machine

Clone the repo

npm i

start nginx

head to localhost and check if your nginx is up and running

Add these contents to the nginx conf file (change the port number, server name in accordance)

upstream my_http_servers {
    least_conn;
    server 127.0.0.1:3001;      # httpServer1 listens to port 3001
    server 127.0.0.1:3002;      # httpServer2 listens to port 3002
    server 127.0.0.1:3003;      # httpServer2 listens to port 3003
    server 127.0.0.1:3004;      # httpServer2 listens to port 3004
}

server {
    listen       81;
    server_name  localhost;

    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_pass   http://my_http_servers;

        proxy_redirect off;
    }
}

Run your node application in different ports

pm2 start app.js --node-args="app.js 3001" --name firstInstance

pm2 start app.js --node-args="app.js 3002" --name secondInstance

pm2 start app.js --node-args="app.js 3003" --name thirdInstance

pm2 start app.js --node-args="app.js 3004" --name fourthInstance

Reload your nginx (nginx -s reload)

Go to browser and navigate to localhost:81 to see which port the application runs on

Keep reloading the browser to confirm whether it runs on multiple ports

You can also check the application logs by running pm2 logs.