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kubectl: Command-Line Kubernetes in a Nutshell

You're reading from   kubectl: Command-Line Kubernetes in a Nutshell Deploy, manage, and debug container workloads using the Kubernetes CLI

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Product type Paperback
Published in Nov 2020
Publisher Packt
ISBN-13 9781800561878
Length 136 pages
Edition 1st Edition
Concepts
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Author (1):
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Rimantas Mocevicius Rimantas Mocevicius
Author Profile Icon Rimantas Mocevicius
Rimantas Mocevicius
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Table of Contents (16) Chapters Close

Preface 1. Section 1: Getting Started with kubectl
2. Chapter 1: Introducing and Installing kubectl FREE CHAPTER 3. Section 2: Kubernetes Cluster and Node Management
4. Chapter 2: Getting Information about a Cluster 5. Chapter 3: Working with Nodes 6. Section 3: Application Management
7. Chapter 4: Creating and Deploying Applications 8. Chapter 5: Updating and Deleting Applications 9. Chapter 6: Debugging an Application 10. Section 4: Extending kubectl
11. Chapter 7: Working with kubectl Plugins 12. Chapter 8: Introducing Kustomize for Kubernetes 13. Chapter 9: Introducing Helm for Kubernetes 14. Chapter 10: kubectl Best Practices and Docker Commands 15. Other Books You May Enjoy

Introduction to Helm

Helm is a Kubernetes package manager that allows developers and users an easy way to package, configure, share, and deploy Kubernetes applications onto Kubernetes clusters.

You can think of Helm as the same as the Homebrew/APT/Yum package managers, but for Kubernetes.

Helm v3 is based on a client-only architecture. It connects to the Kubernetes API the same way as kubectl does, by using a kubeconfig file containing the Kubernetes cluster connection settings. So where kubectl works, the Helm CLI will work too, using the same kubectl capabilities and permissions.

To better understand Helm, you should get familiar with the following concepts:

  • The Helm CLI: A command-line tool that interacts with the Kubernetes API and does various functions, such as installing, upgrading, and deleting Helm releases.
  • A chart: This is a collection of template files that describe Kubernetes resources.
  • Chart templating: Helm chart templating language used in...
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