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)
Part 1: Introduction and Setup
Part 2: Helm Chart Development
Part 3: Advanced Deployment Patterns


CD and GitOps provide scalable methods for further abstracting the capabilities that Helm provides, allowing deployments to be controlled by the contents of a Git repository or a remote chart repository. In this chapter, we introduced the concepts of CI/CD and GitOps and explored them using Argo CD as a solution to implementing these models in the context of Helm. Then, we learned how to install Argo CD and how to create the Application and ApplicationSet resources, which are primitives for enabling Argo CD deployments and synchronizing them with specified Helm charts and values. Finally, we learned how to deploy a Helm chart across multiple different environments.

In the next chapter, we will explore another abstraction – the Helm operator.