Kamal is an imperative deployment tool. It's basically a successor to Capistrano, but for a container era. It's a simple wrapper around Docker and that's the whole beauty of it. 37signals created Kamal to self-host Basecamp and Hey as part of their pull out of the cloud (running managed K8s).

I am always for simplicity when it comes to deployment and the truth is that lots of projects out there don't need the fully-featured Kubernetes to run. When Kamal was released I got intrigued and slowly adopted the tool. Nowadays I deploy all new projects with it.

Since the documentation is a little sparse at the moment and some people trying Kamal abandoned the effort when they faced their first issues, I decided to do something about it and wrote 'the missing manual' to Kamal called Kamal Handbook.

The book goes through all the important aspects of deploying with Kamal, describes the design choices and explains what's happening under the hood with illustrations. It's by design a small book you can read in a weekend. Hope you'll like it.