Book Image

End-to-End Automation with Kubernetes and Crossplane

By : Arun Ramakani
Book Image

End-to-End Automation with Kubernetes and Crossplane

By: Arun Ramakani

Overview of this book

In the last few years, countless organizations have taken advantage of the disruptive application deployment operating model provided by Kubernetes. With Crossplane, the same benefits are coming to the world of infrastructure provisioning and management. The limitations of Infrastructure as Code with respect to drift management, role-based access control, team collaboration, and weak contract make people move towards a control-plane-based infrastructure automation, but setting it up requires a lot of know-how and effort. This book will cover a detailed journey to building a control-plane-based infrastructure automation platform with Kubernetes and Crossplane. The cloud-native landscape has an overwhelming list of configuration management tools that can make it difficult to analyze and choose. This book will guide cloud-native practitioners to select the right tools for Kubernetes configuration management that best suit the use case. You'll learn about configuration management with hands-on modules built on popular configuration management tools such as Helm, Kustomize, Argo, and KubeVela. The hands-on examples will be patterns that one can directly use in their work. By the end of this book, you'll be well-versed with building a modern infrastructure automation platform to unify application and infrastructure automation.
Table of Contents (16 chapters)
1
Part 1: The Kubernetes Disruption
4
Part 2: Building a Modern Infrastructure Platform
10
Part 3:Configuration Management Tools and Recipes

Testing the configurations

The platform developers require a way to test the XRs and configurations they develop. Also, many teams might be interested in practicing test-driven development. This section of the book will explore KUbernetes Test TooL (KUTTL) as the test tool for practicing test-driven development and configuration-testing pipelines. KUTTL is a declarative test tool that tests for the best Kubernetes controller states and CRDs. The critical feature of KUTTL is writing declarative test cases against the CR. Being able to work well with CRs and CRDs, KUTTL can also work well with XR, XRDs, and Claim. First, we will look at the basic installation and setup required.

Installing KUTTL

The KUTTL CLI is an extension to kubectl. To install KUTTL, we will first install Krew. This is a kubectl plugin manager that helps discover, install, and update kubectl plugins. To install on a macOS/Linux operating system, run the following script:

(
  set -x; cd "$(mktemp...