Managing Kubernetes Resources Using Helm: Simplifying how to build, package, and distribute applications for Kubernetes, 2nd Edition

Reduce the complexity of managing applications on Kubernetes and develop an enterprise pattern for application delivery

Key Features

• Learn best practices from the core maintainer of Helm for application delivery and life cycle management
• Manage applications deployed in Kubernetes effectively using Helm
• Go beyond the basics when using Helm with key security considerations and management options

Book Description

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.

What you will learn

• Understand how to deploy applications on Kubernetes with ease
• Package dynamic applications for deployment on Kubernetes
• Integrate Helm into an existing software release process
• Develop an enterprise automation strategy on Kubernetes using Helm
• Use Helm within a Helm Kubernetes operator
• Leverage Helm in a secure and stable manner that fits the enterprise
• Discover the ins and outs of automation with Helm

Who this book is for

This book is for Kubernetes developers or administrators who are interested in learning Helm to provide automation for app development on Kubernetes. Although no prior knowledge of Helm is required, basic knowledge of Kubernetes application development will be useful.

Table of Contents

1. Understanding Kubernetes and Helm
2. Preparing a Kubernetes and Helm Environment
3. Installing Your First App with Helm
4. Scaffolding a New Helm Chart
5. Helm Dependency Management
6. Understanding Helm Templates
7. Helm Lifecycle Hooks
8. Publishing to a Helm Chart Repository
9. Testing Helm Charts
10. Automating Helm with CD and GitOps
11. Using Helm with the Operator Framework
12. Helm Security Considerations

Andrew Block is a core maintainer on the Helm project and a Distinguished Architect at Red Hat. He specializes in the use of continuous integration and continuous delivery methodologies to streamline the delivery process and incorporate security at each stage. He works with organizations to adopt and implement these technologies and concepts within their organization. As an open source enthusiast, Andrew not only has authored several publications, but he is also a contributor to several open source communities and a lead within the sigstore project, which aims at simplifying how software is signed and verified.

Austin Dewey is a DevOps engineer focused on delivering a streamlined developer experience on cloud and container technologies. Austin started his career with Red Hat’s consulting organization, where he helped drive success at Fortune 500 companies by automating deployments on Red Hat’s Kubernetes-based PaaS, OpenShift Container Platform. Currently, Austin works at fintech start-up Prime Trust, where he builds automation to scale financial infrastructure and supports developers on Kubernetes and AWS.