How to Install PM2 in Ubuntu 24.04

To install PM2 on Ubuntu 24.04, follow the steps below.

Step 1 : Install PM2

npm install -g pm2

Step 2 : To ensure PM2 starts on system boot, run:

pm2 startup

Step 3 : Build a Simple Node.js App

- Create a simple Node.js application. For example, create a file named app.js with the following content:

const http = require('http');

const server = http.createServer((req, res) => {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.end('Hello World\n');
});

server.listen(3000, '127.0.0.1');
console.log('Server running at http://127.0.0.1:3000/');

Step 4 : Navigate to the directory where your Node.js app is located and start it with PM2:

pm2 start app.js

Step 5 : You can manage your Node.js apps using PM2 commands. Some common ones include:

- Restart an app:

pm2 restart <app_name|app_id>

- Reload an app without downtime:

pm2 reload <app_name|app_id>

- Stop an app:

pm2 stop <app_name|app_id>

- Delete an app from PM2:

pm2 delete <app_name|app_id>

Congratulations! You have successfully installed PM2 on Ubuntu 24.04 and deployed a simple Node.js application using PM2.