How To Install Multiple Ghost Blogs On One DigitalOcean Droplet—Guides

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Why Would I Need Multiple Ghosts?

I wanted a server that is lightweight to manage yet flexible enough to handle potentially new experimental installs, such as additional Ghost / WordPress / ReactJS / etc., on top of the primary Ghost website I will be setting up on this One Server.

Given the experimental nature of this server, I also want full access to easily control, manage or migrate any of the webapp instances any time that I may choose fit in the future.

Additional Key Benefits

• Monthly Cost-Savings—Serving up multiple server instances can be pretty pricy on a monthly basis. If you do not expect high traffic for the websites you are building, or you are practically just starting-out, you can consolidate a few of your websites within One server, save up on the additional costs and scale up eventually when you need to.
• Consolidated Management Interface—Sometimes logging on to multiple SSH instances across multiple servers can be quite a hassle. Having a consolidated One-system-management does help to save time and confusion when managing multiple websites within one account.

Notable Drawbacks

• Slightly Tedious To Setup—These setups generally require a decent level of Technical knowhow on coding languages, to fully enjoy the benefits over the long-term. If Technical-expertise is not your forte, it is highly recommendedly to leave the setup to the professionals, while you focus on the essential content-creation.
• Limited Installs On One Server—The typical aim is to best-maximise the capacity of a server with multiple-Ghost-installs where needed. However from my personal experiments, the limt of DigitalOcean's Baseline USD5.00 Droplet is capped at a mere 2x Ghost installs. This is probably due to a 80-85% baseline server usage of the 1GB Memory, and every additional install requires another 150MB of available memory for "smooth service execution".