Book Image

Getting Started with Kubernetes - Third Edition

By : Jonathan Baier, Jesse White
Book Image

Getting Started with Kubernetes - Third Edition

By: Jonathan Baier, Jesse White

Overview of this book

Kubernetes has continued to grow and achieve broad adoption across various industries, helping you to orchestrate and automate container deployments on a massive scale. Based on the recent release of Kubernetes 1.12, Getting Started with Kubernetes gives you a complete understanding of how to install a Kubernetes cluster. The book focuses on core Kubernetes constructs, such as pods, services, replica sets, replication controllers, and labels. You will understand cluster-level networking in Kubernetes, and learn to set up external access to applications running in the cluster. As you make your way through the book, you'll understand how to manage deployments and perform updates with minimal downtime. In addition to this, you will explore operational aspects of Kubernetes , such as monitoring and logging, later moving on to advanced concepts such as container security and cluster federation. You'll get to grips with integrating your build pipeline and deployments within a Kubernetes cluster, and be able to understand and interact with open source projects. In the concluding chapters, you'll orchestrate updates behind the scenes, avoid downtime on your cluster, and deal with underlying cloud provider instability within your cluster. By the end of this book, you'll have a complete understanding of the Kubernetes platform and will start deploying applications on it.
Table of Contents (23 chapters)
Title Page
Dedication
Packt Upsell
Contributors
Preface
Index

Chapter 5. Exploring Kubernetes Storage Concepts

In order to power modern microservices and other stateless applications, Kubernetes operators need to have a way to manage stateful data storage on the cluster. While it's advantageous to maintain as much state as possible outside of the cluster in dedicated database clusters as a part of cloud-native service offerings, there's often a need to keep a statement of record or state cluster for stateless and ephemeral services. We'll explore what's considered a more difficult problem in the container orchestration and scheduling world: managing locality-specific, mutable data in a world that relies on declarative state, decoupling physical devices from logical objects, and immutable approaches to system updates. We'll explore strategies for setting up reliable, replicated storage for modern database engines.

In this chapter, we will discuss how to attach persistent volumes and create storage for stateful applications and data. We will walk through...