How to Install PM2 on AlmaLinux 10

To install PM2 on AlmaLinux 10, use npm to install PM2 and manage Node.js applications as background services.

Step 1 : Make sure Node.js and npm are already installed, then install PM2 globally.

npm install -g pm2

Verify the installation:

pm2 -v

Step 2 : Configure PM2 to start automatically on system boot.

pm2 startup

Step 3 : Build a Simple Node.js Application

Create a simple Node.js application.

mkdir pm2-demo
cd pm2-demo

Create an app.js file:

nano app.js

Example content:

const http = require('http');

const server = http.createServer((req, res) => {
    res.writeHead(200, {'Content-Type': 'text/plain'});
    res.end('PM2 is running\n');
});

server.listen(3000, () => {
    console.log('Server running on port 3000');
});

Step 4 : Start the Node.js application using PM2.

pm2 start app.js --name pm2-demo-app

Check application status:

pm2 status

Step 5 : Common PM2 management commands:

Restart an application:

pm2 restart pm2-demo-app

Reload an application:

pm2 reload pm2-demo-app

Stop an application:

pm2 stop pm2-demo-app

Delete an application:

pm2 delete pm2-demo-app

Congratulations, you have successfully installed and configured PM2 on AlmaLinux 10.