Book Image

The Kubernetes Bible

By : Nassim Kebbani, Piotr Tylenda, Russ McKendrick
4 (3)
Book Image

The Kubernetes Bible

4 (3)
By: Nassim Kebbani, Piotr Tylenda, Russ McKendrick

Overview of this book

With its broad adoption across various industries, Kubernetes is helping engineers with the orchestration and automation of container deployments on a large scale, making it the leading container orchestration system and the most popular choice for running containerized applications. This Kubernetes book starts with an introduction to Kubernetes and containerization, covering the setup of your local development environment and the roles of the most important Kubernetes components. Along with covering the core concepts necessary to make the most of your infrastructure, this book will also help you get acquainted with the fundamentals of Kubernetes. As you advance, you'll learn how to manage Kubernetes clusters on cloud platforms, such as Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform (GCP), and develop and deploy real-world applications in Kubernetes using practical examples. Additionally, you'll get to grips with managing microservices along with best practices. By the end of this book, you'll be equipped with battle-tested knowledge of advanced Kubernetes topics, such as scheduling of Pods and managing incoming traffic to the cluster, and be ready to work with Kubernetes on cloud platforms.
Table of Contents (28 chapters)
1
Section 1: Introducing Kubernetes
5
Section 2: Diving into Kubernetes Core Concepts
12
Section 3: Using Managed Pods with Controllers
17
Section 4: Deploying Kubernetes on the Cloud
21
Section 5: Advanced Kubernetes

Releasing a new version of an app deployed as a StatefulSet

We have just covered the scaling of StatefulSets in the previous section by making changes to the .spec.replicas number in the specification. Everything you have learned about sequential and ordered changes to the Pods plays an important role in rolling out a new revision of a StatefulSet object when using the RollingUpdate strategy. There are many similarities between StatefulSets and Deployment objects – we have covered the details of Deployment updates in Chapter 11, Deployment – Deploying Stateless Applications. Making changes to the StatefulSet Pod template (.spec.template) in the specification will also cause the rollout of a new revision for StatefulSet. Usually, you will change the image used by the Pod container to a new version – this is how you perform the release of a new version of an app deployed as StatefulSet.

StatefulSets support two types of update strategies that you define using...