Developing with Kuby [WIP]


This feature is a work in progress and should be considered experimental.

Kuby ships with a default environment called "development" that is capable of running your application locally using the copy of Kubernetes that comes with Docker Desktop. Running your app inside a local Kubernetes cluster provides several significant benefits:

  1. Your development environment more closely mirrors your production environment, leading to (hopefully) fewer configuration issues, etc.
  2. Kuby can automatically start up a database for your app, obviating the need to run one yourself.

Getting Started

  1. If you haven't already, install Docker Desktop.
  2. In Docker Desktop's preferences, click the Kubernetes tab, then check the "Enable Kubernetes" checkbox. It'll take a few minutes to spin up the cluster.
  3. Run bundle exec kuby rails s. Kuby will prompt you to setup your dev environment.
  4. Your Rails app should boot. Visit localhost:3000 in your browser as you normally would.

Installing Gems

The setup steps above will automatically run bundle install to install all your gem dependencies inside Kubernetes. If you add or remove a gem afterwards however, You'll need to run bundle install manually:

bundle exec kuby remote exec -- bundle install

Running Rails/Rake Tasks


How Development Works