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The Kubernetes Workshop

The Kubernetes Workshop

By : Zachary Arnold , Sahil Dua , Wei Huang , Faisal Masood, Mélony Qin, Mohammed Abu Taleb
4.9 (9)
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The Kubernetes Workshop

The Kubernetes Workshop

4.9 (9)
By: Zachary Arnold , Sahil Dua , Wei Huang , Faisal Masood, Mélony Qin, Mohammed Abu Taleb

Overview of this book

Thanks to its extensive support for managing hundreds of containers that run cloud-native applications, Kubernetes is the most popular open source container orchestration platform that makes cluster management easy. This workshop adopts a practical approach to get you acquainted with the Kubernetes environment and its applications. Starting with an introduction to the fundamentals of Kubernetes, you’ll install and set up your Kubernetes environment. You’ll understand how to write YAML files and deploy your first simple web application container using Pod. You’ll then assign human-friendly names to Pods, explore various Kubernetes entities and functions, and discover when to use them. As you work through the chapters, this Kubernetes book will show you how you can make full-scale use of Kubernetes by applying a variety of techniques for designing components and deploying clusters. You’ll also get to grips with security policies for limiting access to certain functions inside the cluster. Toward the end of the book, you’ll get a rundown of Kubernetes advanced features for building your own controller and upgrading to a Kubernetes cluster without downtime. By the end of this workshop, you’ll be able to manage containers and run cloud-based applications efficiently using Kubernetes.
Table of Contents (20 chapters)
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Preface

Further Refactoring Our Application

We'd like to now take our application a little further into cloud-native principles. Let's consider that the product manager for our counter app said that we're getting insane amounts of load (and you can confirm this through your observability toolset), and some people are not always getting a strictly increasing number; sometimes, they are getting duplicates of the same number. So, you confer with your colleagues and come to the conclusion that in order to guarantee the increasing number, you will need guarantees around how data is accessed and persisted in your app.

Specifically, you need a guarantee that operations against this datastore are atomically unique, consistent between operations, isolated from other operations, and durable against failure. That is, you are looking for an ACID-compliant database.

Note

More on what ACID compliance is can be found at this link: https://database.guide/what-is-acid-in-databases...

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