Book Image

Getting Started with Kubernetes - Third Edition

By : Jonathan Baier, Jesse White
Book Image

Getting Started with Kubernetes - Third Edition

By: Jonathan Baier, Jesse White

Overview of this book

Kubernetes has continued to grow and achieve broad adoption across various industries, helping you to orchestrate and automate container deployments on a massive scale. Based on the recent release of Kubernetes 1.12, Getting Started with Kubernetes gives you a complete understanding of how to install a Kubernetes cluster. The book focuses on core Kubernetes constructs, such as pods, services, replica sets, replication controllers, and labels. You will understand cluster-level networking in Kubernetes, and learn to set up external access to applications running in the cluster. As you make your way through the book, you'll understand how to manage deployments and perform updates with minimal downtime. In addition to this, you will explore operational aspects of Kubernetes , such as monitoring and logging, later moving on to advanced concepts such as container security and cluster federation. You'll get to grips with integrating your build pipeline and deployments within a Kubernetes cluster, and be able to understand and interact with open source projects. In the concluding chapters, you'll orchestrate updates behind the scenes, avoid downtime on your cluster, and deal with underlying cloud provider instability within your cluster. By the end of this book, you'll have a complete understanding of the Kubernetes platform and will start deploying applications on it.
Table of Contents (23 chapters)
Title Page
Dedication
Packt Upsell
Contributors
Preface
Index

Planning a cluster


Looking back over the work we've done up till now in this book, there are a lot of options when it comes to building a cluster with Kubernetes. Let's briefly highlight the options you have available to you when you're planning on building your cluster. We have a few key areas to investigate when planning ahead.

Picking what's right

The first and arguably most important step when choosing a cluster is to pick the right hosted platform for your Kubernetes cluster. At a high level, here are the choices you have:

  • Local solutions include the following:
    • Minikube: A single-node Kubernetes cluster
    • Ubuntu on LXD: This uses LXD to deploy a nine-instance cluster of Kubernetes
    • IBM's Cloud Private-CE: This uses VirtualBox to deploy Kubernetes on n+1 instances
    • kubeadm-dind (Docker-in-Docker): This allows for multi-node Kubernetes clusters
  • Hosted solutions include the following:
    • Google Kubernetes Engine
    • Amazon Elastic Container Services
    • Azure Kubernetes Service
    • Stackpoint
    • Openshift online
    • IBM Cloud...