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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

Using plugins

So, we have installed a few very useful plugins. Let's check out how to use them.

We have installed three plugins:

  • kubectl ctx: This plugin allows us to easily to switch between Kubernetes clusters, which is very useful when you have more than one cluster set in your kubeconfig.

    Lets' check for available cluster by running the $ kubectl ctx command:

Figure 7.4 – The ctx plugin

  • kubectl ns: This plugin allows us to switch between namespaces. Let's check for available namespaces in the cluster by running the $ kubectl ns command:

Figure 7.5 – The ns plugin

  • kubectl view-allocations: This plugin lists resource allocations of a namespace, such as CPU, memory, storage, and so on.

    Let's check for resources allocations in the cluster by running the $ kubectl view-allocations command:

Figure 7.6 – The view-allocations plugin

You can...

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