I'm using a one-click app install from DigitalOcean on Ubuntu 16.04 to run Ghost. You can read my install post here.
The update process is extremely simple and, whilst there is no need to stop Ghost before you update, you should always ensure you have backups of your content before doing so.
- Connect to your DigitalOcean droplet via SSH.
- Ensure you are in your Ghost directory, usually that is