ks

A Kubernetes series

Docker, Kubernetes + the database.

Here we showcase the evolution of a simple web application as we learn Docker and Kubernetes. Our only contraint is to try use Kubernetes through all our environments while we evolve the application from a development enviroment to a production environment and add different pieces as we go.

Why Kubernetes

To deploy, scale and manage containerized applications.

• Why containers
• Why do I need Kubernetes and what can it do?
• 4 reasons you should use Kubernetes

Articles based on the ks series

• Adopting Kubernetes step by step
• Deploying Kubernetes applications with Helm

Prerequisites

• Yarn
• Docker
• Kubernetes:
  • Follow this tutorial to set up kubernetes in your machine.

Structure of this repo

• Each ksx folder (ks1, ks2, ...) contains a working example of the app we are building in this series.
• They are all incremental, so ksn is based on ksn-1, etc..
• instructions of each item of this series is in the ksx.md file.

Getting started

1. clone ks repo

   git clone https://github.com/red-gate/ks.git

2. start following the series or go directly to the one you are interested in.

Evolution of our app

1. ks1: build a React app with kubernetes
2. ks2: make minikube detect React code changes
3. ks3: add a python web server that hosts an API
4. ks4: make minikube detect Python code changes
5. ks5: use helm to deploy the application
6. ks6: create a test environment using helm
7. ks7: create an in memory Todo list application
8. ks8-1: create a database in the K8S cluster for the Todo list data
9. ks8-2: use a database external to the K8s cluster for the Todo list data
10. ...
11. create a prod environment