PM2 is a process manager for nodejs apps. It daemonizes apps built with nodejs, which means run-as-service.

Let’s install PM2 using npm.

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npm install -g pm2@latest

Now you can start your app using pm2 like so:

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pm2 start app.js

Next, register the app as a startup process.

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pm2 startup systemd
pm2 save

You can check the currently running apps like so:

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pm2 list

Remember your app name or id so that you can use it to restart or stop the service.

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pm2 restart

Simply entering pm2 command in your terminal will show you the pm2 help.

Happy coding! 🙂