A very useful process manager utility. This utility will handle making sure node applications stay up.
First step is to install pm2 globally.
npm install -g pm2
The second step is to start a project:
pm2 start bin/www --name project-name
This will start the project with a name. Now pm2 will make sure the project stays up.
This will enable everything that pm2 is managing to start on boot. This will create a systemd init file which is quite handy.
You can also list out processes:
Finally, if you add need projects you can run, once you start them you can then save the currently running list again: