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The Kubernetes Workshop

You're reading from   The Kubernetes Workshop Learn how to build and run highly scalable workloads on Kubernetes

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Product type Paperback
Published in Sep 2020
Publisher Packt
ISBN-13 9781838820756
Length 780 pages
Edition 1st Edition
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Authors (6):
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Zachary Arnold Zachary Arnold
Author Profile Icon Zachary Arnold
Zachary Arnold
Mohammed Abu Taleb Mohammed Abu Taleb
Author Profile Icon Mohammed Abu Taleb
Mohammed Abu Taleb
Wei Huang Wei Huang
Author Profile Icon Wei Huang
Wei Huang
Sahil Dua Sahil Dua
Author Profile Icon Sahil Dua
Sahil Dua
Mélony Qin Mélony Qin
Author Profile Icon Mélony Qin
Mélony Qin
Faisal Masood Faisal Masood
Author Profile Icon Faisal Masood
Faisal Masood
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Toc

Table of Contents (20) Chapters Close

Preface
1. Introduction to Kubernetes and Containers 2. An Overview of Kubernetes FREE CHAPTER 3. kubectl – Kubernetes Command Center 4. How to Communicate with Kubernetes (API Server) 5. Pods 6. Labels and Annotations 7. Kubernetes Controllers 8. Service Discovery 9. Storing and Reading Data on Disk 10. ConfigMaps and Secrets 11. Build Your Own HA Cluster 12. Your Application and HA 13. Runtime and Network Security in Kubernetes 14. Running Stateful Components in Kubernetes 15. Monitoring and Autoscaling in Kubernetes 16. Kubernetes Admission Controllers 17. Advanced Scheduling in Kubernetes 18. Upgrading Your Cluster without Downtime 19. Custom Resource Definitions in Kubernetes

API Versions

In the Kubernetes API, there is the concept of API versioning; that is, the Kubernetes API supports multiple versions of a type of resource. These different versions may act differently. Each one has a different API path, such as /api/v1 or /apis/extensions/v1beta1.

The different API versions differ in terms of stability and support:

  • Alpha: This version is indicated by alpha in the apiVersion field—for example, /apis/batch/v1alpha1. The alpha version of resources is disabled by default as it is not intended for production clusters but can be used by early adopters and developers who are willing to provide feedback and suggestions and report bugs. Also, support for alpha resources may be dropped without notice by the time the final stable version of Kubernetes is finalized.
  • Beta: This version is indicated by beta in the apiVersion field—for example, /apis/certificates.k8s.io/v1beta1. The beta version of resources is enabled by default, and the...
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