Book Image

Cloud Native with Kubernetes

By : Alexander Raul
Book Image

Cloud Native with Kubernetes

By: Alexander Raul

Overview of this book

Kubernetes is a modern cloud native container orchestration tool and one of the most popular open source projects worldwide. In addition to the technology being powerful and highly flexible, Kubernetes engineers are in high demand across the industry. This book is a comprehensive guide to deploying, securing, and operating modern cloud native applications on Kubernetes. From the fundamentals to Kubernetes best practices, the book covers essential aspects of configuring applications. You’ll even explore real-world techniques for running clusters in production, tips for setting up observability for cluster resources, and valuable troubleshooting techniques. Finally, you’ll learn how to extend and customize Kubernetes, as well as gaining tips for deploying service meshes, serverless tooling, and more on your cluster. By the end of this Kubernetes book, you’ll be equipped with the tools you need to confidently run and extend modern applications on Kubernetes.
Table of Contents (22 chapters)
1
Section 1: Setting Up Kubernetes
5
Section 2: Configuring and Deploying Applications on Kubernetes
11
Section 3: Running Kubernetes in Production
16
Section 4: Extending Kubernetes

Creating a cluster with Kubeadm

To create a cluster with Kubeadm, you will need your nodes provisioned ahead of time. As with any other Kubernetes cluster, we'll need VMs or bare-metal servers running Linux.

For the purposes of this book, we will show how to bootstrap a Kubeadm cluster with only a single master node. For highly available setups, you'll need to run additional join commands on the other master nodes, which you can find at https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/high-availability/.

Installing Kubeadm

First things first – you'll need to install Kubeadm on all nodes. The installation instructions for each supported operating system can be found at https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/install-kubeadm.

For each node, also make sure to check that all the required ports are open, and that you've installed your intended container runtime.

Starting the master nodes

To quickly...