Book Image

The Kubernetes Workshop

By : Zachary Arnold, Sahil Dua, Wei Huang, Faisal Masood, Mélony Qin, Mohammed Abu Taleb
5 (1)
Book Image

The Kubernetes Workshop

5 (1)
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)
Preface

Dynamic Provisioning

In previous sections of this chapter, we saw that the cluster administrator needs to provision PVs for us before we can use them as storage for our application. To solve this problem, Kubernetes supports dynamic volume provisioning as well. Dynamic volume provisioning enables the creation of storage volumes on-demand. This eliminates the need for administrators to create volumes before creating any PVCs. The volume is provisioned only when there's a claim requesting it.

In order to enable dynamic provisioning, the administrator needs to create one or more storage classes that users can use in their claims to make use of dynamic provisioning. These StorageClass objects need to specify what provisioner will be used along with its parameters. The provisioner depends on the environment. Every cloud provider supports different provisioners, so make sure you check with your cloud provider if you happen to create this kind of storage class in your cluster.

...