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Copyright Ā© 2017 Packt Publishing
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First published: January 2017
Production reference: 1190117
Published by Packt Publishing Ltd.
Livery Place
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B3 2PB, UK.
ISBN 978-1-78712-212-3
www.packtpub.com
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Randall Smith is a senior systems administrator at Adams State University. He has been administering Windows, Linux, and BSD systems since 1999.
He has been active in helping other sysadmins solve problems online and off. He has presented at the Colorado Higher Ed Computing Organization and Educause conferences on topics including Linux KVM and Ceph.
In his spare time, Randall streams Let's Play gaming videos at Music Free Gaming on YouTube and Twitch.
I would like to thank my family for their support and understanding as I disappeared into my bedroom for hours at a time to write this book. I would like to thank Adams State University for providing servers used for testing and the opportunity to play with really cool software such as Docker. Finally, I would like to thank the reviewers and everyone at Packt who helped make this book possible.
I want to give a special shout-out to all of the developers and companies who have open-sourced the tools described in this book. You all make it so much much easier for the rest of us to get the job done. Thank you all so much.
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Vincent De Smet is a Docker Captain with experience as an IT consultant and a DevOps engineer in Vietnam and Singapore, respectively. He's also a co-organizer of the Docker Saigon and Cloud Native Singapore meetups. Vincent loves to deep dive into container internals, is an active speaker, and publishes articles to the docker-saigon.github.io blog.
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Docker containers are a powerful tool for building and deploying services consistently and reliably. As the number of containers increases, they also become a problem to manage. The problem is only exasperated when the containers are run on multiple hosts. This book shows you how to get started bringing order to the chaos through orchestration.
This book starts by showing you how to get started with Docker then delves into the building blocks that are needed for a Docker cluster. It shows you how to use the "Big Three" orchestration toolsāDocker Swarm, Kubernetes, and Mesosphere. It will also introduce two additional tools, Fleet and Cattle, which can be simpler to use and install, but very powerful.
Finally, you will be introduced to tools that make life simpler for people managing clusters and developers creating images that will be run. You will explore tools to monitor clusters and see where the performance bottlenecks are. You will see how to use continuous integration to consistently and reliably build, test, and deploy Docker images. Finally, this book will show you how to apply the same principles to the hosts that Docker is running on.
Chapter 1, Getting Started with Docker Orchestration , gets you started with using Docker. It shows you how to install Docker locally and on popular cloud services such as Amazon Web Services, Google Compute Engine, and Microsoft Azure.
Chapter 2, Building Multi-Container Applications with Docker Compose , provides an introduction to building multi-container applications with Docker Compose. It also shows how to use named networks for data isolation and data volumes to share data.
Chapter 3 , Cluster Building Blocks ā Registry, Overlay Networks, and Shared Storage , describes the building blocks that are needed for a Docker cluster. You will explore the registry, overlay networks, and shared storage and learn why they are needed.
Chapter 4 , Orchestration with Docker Swarm , shows you how to create and manage a cluster with Docker Swarm. You will learn how to manage services, ru...
