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The Kubernetes Workshop

You're reading from The Kubernetes Workshop

Product type Book

Published in Sep 2020

Publisher Packt

ISBN-13 9781838820756

Pages 780 pages

Edition 1st Edition

Languages

Concepts

Containerization

Authors (6):

Zachary Arnold

Sahil Dua

Wei Huang

Faisal Masood

Mélony Qin

Mohammed Abu Taleb

View More author details

Table of Contents (20) Chapters

Preface

1. Introduction to Kubernetes and Containers

2. An Overview of Kubernetes

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 Groups

An API group is a collection of resources that are logically related to each other. For example, Deployments, ReplicaSets, and DaemonSets all belong to the apps API group: apps/v1.

Note

You will learn about Deployments, ReplicaSets, and DaemonSets in detail in Chapter 7, Kubernetes Controllers. In fact, this chapter will talk about many API resources that you will encounter in later chapters.

The --api-group flag can be used to scope the output to a specific API group, as we will see in the following sections. Let's take a closer look at the various API groups in the following sections.

Core Group

This is also called the legacy group. It contains objects such as pods, services, nodes, and namespaces. The URL path for these is /api/v1, and nothing other than the version is specified in the apiVersion field. For example, consider the following screenshot where we are getting information about a pod:

Figure 4.25: API group of a pod...

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Authors (6)

Zachary Arnold

Zachary Arnold works as a software engineer at Ygrene Energy Fund. Zach has an experience of over 10 years in modern web development. He is an active contributor to the Open Source Kubernetes project in both SIG-Release and SIG-Docs currently focusing on security. He has been running clusters in production since Kubernetes 1.7 and has spoken at the previous 4 KubeCons. His passion areas in the project center on building highly stable Kubernetes cluster components and running workloads securely inside of Kubernetes.

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Sahil Dua

Sahil Dua is a software engineer. He started using Kubernetes to run machine learning workloads. Currently, he is running various types of applications on Kubernetes. He shared his learnings as a keynote session at KubeCon Europe 2018. He is a passionate open source contributor and has contributed to some famous projects such as Git, pandas, hound, go-GitHub, and so on. He has been an open source community leader for over 2 years at DuckDuckGo.

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Wei Huang

Wei Huang: Wei works as a senior software engineer in IBM. He has over 10 years' experiences around database, data warehouse tooling, cloud, container, monitoring and devops. He started to use Kubernetes since 1.3, including extending Kubernetes LoadBalancer using CRD, networking, scheduling and monitoring. Now he is a core maintainer of Kubernetes SIG-Scheduling.

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Faisal Masood

Faisal Masood is a cloud transformation architect at AWS. Faisal's focus is to assist customers in refining and executing strategic business goals. Faisal main interests are evolutionary architectures, software development, ML lifecycle, CD and IaC. Faisal has over two decades of experience in software architecture and development.

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Mélony Qin

Mélony Y. QIN, also known as CloudMelon, is the founder of CloudMelon Vis, a tech media and educational platform for technopreneurs in the cloud-native and serverless space, and a former product manager at Microsoft. With a passion for cloud-native technologies, OSS, DevOps, Kubernetes, serverless, data, and AI, Mélony has authored multiple books, including the Certified Kubernetes Administrator (CKA) Exam Guide, the Kubernetes Workshop, and Microsoft Azure Infrastructure, all published by Packt Publishing. Mélony is a member of the Association for Computing Machinery (ACM) and the Project Management Institute (PMI), leveraging her extensive experience with diverse cloud technologies to drive innovation in the cloud-native, serverless, and generative AI space. She runs the CloudMelonVis YouTube channel and Cloud-Native Innovators newsletter, read by professionals from top tech companies such as Microsoft, Google, Amazon, Dell, and Carrefour.

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Mohammed Abu Taleb

Mohammed Abu-Taleb works as a Technical Advisor at Microsoft. Working at Microsoft CSS team for troubleshooting complex issues and cases for premier customers that are using Azure Kubernetes Services (AKS). Prior that, Mohammed was a SME (subject matter expert) for the azure managed monitoring service (Azure Monitor) focusing on designing, deploying, and troubleshooting monitoring strategies for containers.

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