Book Image

Docker Orchestration

By : Randall Smith
Book Image

Docker Orchestration

By: Randall Smith

Overview of this book

Docker orchestration is what you need when transitioning from deploying containers individually on a single host to deploying complex multi-container apps on many machines. This book covers the new orchestration features of Docker 1.12 and helps you efficiently build, test, and deploy your application using Docker. You will be shown how to build multi-container applications using Docker Compose. You will also be introduced to the building blocks for multi-host Docker clusters such as registry, overlay networks, and shared storage using practical examples. This book gives an overview of core tools such as Docker Machine, Swarm, and Compose which will enhance your orchestration skills. You’ll learn how to set up a swarm using the decentralized building block. Next, you’ll be shown how to make the most out of the in-built orchestration feature of Docker engine and you’ll use third-party tools such as Kubernetes, Mesosphere, and CoreOS to orchestrate your existing process. Finally, you will learn to deploy cluster hosts on cloud services and automate your infrastructure.
Table of Contents (17 chapters)
Docker Orchestration
About the Author
About the Reviewer
Customer Feedback

Installing Kubernetes

Kubernetes can be installed on most cloud services or locally on your own hardware or virtual machines. Unsurprisingly, since Kubernetes is a Google project, it runs best on GCE and new features tend to be supported there first.

In addition, Google has rolled out a service called Google Container Engine (GKE), which is a pre-rolled Kubernetes service. Google maintains the Kubernetes master and makes it easy to add new nodes to the cluster. You only need to worry about the containers. This is the easiest way to get started with Kubernetes.

For local installations, there are several options. The first is the new kubeadm tool which was released as a beta tool with Kubernetes 1.4. Second, there is the script which is part of the Kubernetes release package which can install Kubernetes on a variety of platforms.

There are two other options worth considering. RHEL has a kubernetes package available which is installable with yum. The Rancher container management suite...