Book Image

Kubernetes Cookbook - Second Edition

By : Hideto Saito, Hui-Chuan Chloe Lee, Ke-Jou Carol Hsu
Book Image

Kubernetes Cookbook - Second Edition

By: Hideto Saito, Hui-Chuan Chloe Lee, Ke-Jou Carol Hsu

Overview of this book

Kubernetes is an open source orchestration platform to manage containers in a cluster environment. With Kubernetes, you can configure and deploy containerized applications easily. This book gives you a quick brush up on how Kubernetes works with containers, and an overview of main Kubernetes concepts, such as Pods, Deployments, Services and etc. This book explains how to create Kubernetes clusters and run applications with proper authentication and authorization configurations. With real-world recipes, you'll learn how to create high availability Kubernetes clusters on AWS, GCP and in on-premise datacenters with proper logging and monitoring setup. You'll also learn some useful tips about how to build a continuous delivery pipeline for your application. Upon completion of this book, you will be able to use Kubernetes in production and will have a better understanding of how to manage containers using Kubernetes.
Table of Contents (11 chapters)

Forwarding container ports

In previous chapters, you have learned how to work with the Kubernetes Services to forward the container port internally and externally. Now, it's time to take it a step further to see how it works.

There are four networking models in Kubernetes, and we'll explore the details in the following sections:

  • Container-to-container communications
  • Pod-to-pod communications
  • Pod-to-service communications
  • External-to-internal communications

Getting ready

Before we go digging into Kubernetes networking, let's study the networking of Docker to understand the basic concept. Each container will have a network namespace with its own routing table and routing policy. By default, the network bridge...