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The KCNA Book

You're reading from The KCNA Book

Product type Book

Published in Jun 2023

Publisher Packt

ISBN-13 9781835080399

Pages 197 pages

Edition 1st Edition

Languages

Concepts

Containerization

Author (1):

Nigel Poulton

Table of Contents (12) Chapters

1. Getting started

2. 1: Setting the scene

3. 2: Cloud native architecture

4. 3: Container orchestration

5. 4: Kubernetes Fundamentals

6. 5: Cloud native application delivery

7. 6: Cloud native observability

8. The exam

9. 8: Sample test

10. What next

Appendix A: Chapter quiz answers

1. Appendix B: Sample Test answers

Exam essentials

Container runtimes: Container runtimes are a class of infrastructure application that specialises in low-level container operations such as creating, starting, stopping, and deleting containers. They tend to operate in the background and are managed by higher-level tools like Kubernetes. For example, you or your team might deploy applications to Kubernetes on a daily basis. However, you won’t run the commands to actually start and stop containers – Kubernetes looks after all of that for you behind the scenes. Docker is the best-known container runtime, but others include containerd and CRI-O.
Containerisation: Containerisation is the process of building an application and its dependencies into a container image. For example, when a developer has written an application and packaged it as a container image you can say the developer has “containerised the app”.
The Open Containers Initiative (OCI): The OCI is an open organisation...

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Authors (1)

Nigel Poulton

Nigel Poulton is a cloud-native subject matter expert who spends his life creating books and training videos on the latest cloud technologies. He is the author of best-selling books on Docker and Kubernetes and the most popular online training videos on the same topic. He is a Docker Captain. Prior to this, Nigel has held various infrastructure roles for large enterprises. When he is not playing with technology, he is dreaming about it. When he is not dreaming about it, he is reading and watching sci-fi. He wishes he lived in the future so he could explore spacetime, the universe, and tons of other mind-blowing stuff. He likes cars, football (soccer), and food. He has a fabulous wife and three children.

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