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

Chapter 3. Cluster Building Blocks – Registry, Overlay Networks, and Shared Storage

The previous two chapters covered the basics of using Docker. Now it is time to start looking forward to building a Docker cluster. Before a new cluster can be built, a foundation needs to be laid. This chapter will cover the registry, overlay networks, and shared storage. Each component is essential for the smooth operation of containers in a Docker cluster.

Docker is a highly pluggable system. Meaning, there are many options for each component. Each has its own strengths and weaknesses. Some may be better suited to your environment than others. This chapter will give a few examples of each component and explain how to use them.

The good news is that no matter your choice, you are not locked in. Docker's plugin system makes it easy to use whichever component you need, often on a per-container basis. You could start, for example, using one system for shared storage and decide that another fits your needs. New...