Book Image

Managing Kubernetes Resources Using Helm - Second Edition

By : Andrew Block, Austin Dewey
Book Image

Managing Kubernetes Resources Using Helm - Second Edition

By: Andrew Block, Austin Dewey

Overview of this book

Containerization is one of the best ways to implement DevOps, and learning how to execute it effectively is an essential part of a developer’s skillset. Kubernetes is the current industry standard for container orchestration. This book will help you discover the efficiency of managing applications running on Kubernetes with Helm. Starting with a brief introduction to Helm and its impact on users working with containers and Kubernetes, you’ll delve into the primitives of Helm charts and their architecture and use cases. From there, you’ll understand how to write Helm charts in order to automate application deployment on Kubernetes and work your way toward more advanced strategies. These enterprise-ready patterns are focused on concepts beyond the basics so that you can use Helm optimally, looking at topics related to automation, application development, delivery, lifecycle management, and security. By the end of this book, you’ll have learned how to leverage Helm to build, deploy, and manage applications on Kubernetes.
Table of Contents (18 chapters)
1
Part 1: Introduction and Setup
5
Part 2: Helm Chart Development
12
Part 3: Advanced Deployment Patterns

Automating Helm with CD and GitOps

Throughout this book, we have demonstrated how to use different Helm commands to manage Kubernetes resources and applications. While these commands (namely install, upgrade, rollback, and uninstall) are effective in carrying out their respective tasks, we have been invoking them manually from the command line. Manual invocation can serve as a pain point when managing multiple different applications and can make it difficult for enterprises to scale. As a result, we should explore opportunities to automate our Helm deployments.

In this chapter, we will investigate concepts relating to continuous delivery (CD) and GitOps. These are methodologies that involve automatically invoking the Helm command-line interface (CLI) to perform automated chart installations based on the contents of a Git repository. By implementing the CD and GitOps concepts, you can further increase your efficiency with Helm.

In this chapter, we will cover the following topics...