Production process manager for Node.js apps with a built-in load balancer. http://pm2.io/

Start 2 instances of application in cluster mode:

pm2 start -i 2 --name [name] bin/www

Set pm2 start on boot:

pm2 startup

Save pm2 current process list:

pm2 save

Remove init script:

pm2 unstartup [systemv|systemd]