Book Image

Hands-On Kubernetes on Windows

By : Piotr Tylenda
Book Image

Hands-On Kubernetes on Windows

By: Piotr Tylenda

Overview of this book

With the adoption of Windows containers in Kubernetes, you can now fully leverage the flexibility and robustness of the Kubernetes container orchestration system in the Windows ecosystem. This support will enable you to create new Windows applications and migrate existing ones to the cloud-native stack with the same ease as for Linux-oriented cloud applications. This practical guide takes you through the key concepts involved in packaging Windows-distributed applications into containers and orchestrating these using Kubernetes. You'll also understand the current limitations of Windows support in Kubernetes. As you advance, you'll gain hands-on experience deploying a fully functional hybrid Linux/Windows Kubernetes cluster for development, and explore production scenarios in on-premises and cloud environments, such as Microsoft Azure Kubernetes Service. By the end of this book, you'll be well-versed with containerization, microservices architecture, and the critical considerations for running Kubernetes in production environments successfully.
Table of Contents (23 chapters)
1
Section 1: Creating and Working with Containers
5
Section 2: Understanding Kubernetes Fundamentals
9
Section 3: Creating Windows Kubernetes Clusters
12
Section 4: Orchestrating Windows Containers Using Kubernetes

Kubernetes objects

Setting up a Kubernetes cluster with Windows nodes is complex and will be covered later in this book, and the principles will be demonstrated on Linux examples. From a Kubernetes API Server perspective, Windows and Linux nodes operate in almost the same way.

In the Kubernetes cluster, the cluster state is managed by the kube-apiserver component and is persisted in the etcd cluster. The state is abstracted and modeled as a set of Kubernetes objects these entities describe what containerized applications should be run, how they should be scheduled, and are the policies concerning restarting or scaling them. If there is anything you would like to achieve in your Kubernetes cluster, then you have to create or update Kubernetes objects. This type of model is called a declarative model you declare your intent and Kubernetes is responsible for changing...