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

Accessing the application

In this section, we will expose our voting application to external users by creating a Kubernetes service of the LoadBalancer type. Services have been covered in depth in Chapter 5, Kubernetes Networking. At the end of this section, anyone who has the external IP of your new service will be able to access the application.

To create the service, execute the following steps:

  1. Open the PowerShell window.
  2. Create a voting-application-service.yaml manifest file for the Kubernetes service with the following content:
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: voting-application-frontend
labels:
app: voting-application
spec:
type: LoadBalancer (1)
ports:
- protocol: TCP
port: 80 (2)
selector:
app: voting-application

Here, the key points are ensuring that the type of service is LoadBalancer (1) and using the proper port for the service...