Puppet for Containerization

Scott Coulton

• Éditeur: Packt Publishing
• Année: 2016
• ISBN:
  9781785883286
• Édition: 1
• Sujet: Informatique
• Sous-sujet: Architecture des systèmes

Learn about configuration management and gain complete control of your Docker containers using Puppet

About This Book

• This is the first book that focuses specifically on the combination of containerization and configuration management tools as the landscape for system administration changes
• It demonstrates to administrators how to seamlessly integrate containerization without disrupting their entire system
• It provides a canny way for you to grow your tool kit and embrace new tech such as Docker while building on your existing skill set

Who This Book Is For

This book is designed for system administrators who are looking to explore containerization. Intermediate experience and expertise with Puppet is presumed.

What You Will Learn

• Write Puppet modules to build Docker
• Create Docker Compose templates with.erb files
• Get to know the architecture of Docker schedulers
• Create a Docker network and service discovery framework
• Build a fully functional Docker scheduler with Puppet
• Make Docker production ready with Puppet

In Detail

This book teaches you how to take advantage of the new benefits of containerization systems such as Docker, Kubernetes, Docker Swarm, and Docker UCP, without losing the panoptical power of proper configuration management.

You will learn how to integrate your containerized applications and modules with your Puppet workflow. You will also understand how to manage, monitor, and orchestrate hosts to keep deployed containers running seamlessly. With the help of this book, you can efficiently automate and document with containers, as a part of your system.

The book will also cover use cases of deploying Puppet within a containerized environment.

Style and approach

This book uniquely focuses on the pain point of making containerization part of a bigger, established workflow of system administration. It will begin with the presumption that one has a use for Docker containers, and a background in system administration. Then, step by step, it takes you through the concepts and methods necessary to integrate this new time-saving technology into a well-managed configuration run by Puppet.

Puppet for Containerization

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Table of Contents

Puppet for Containerization

Credits

About the Author

About the Reviewer

www.PacktPub.com

eBooks, discount offers, and more

Why subscribe?

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Downloading the example code

Downloading the color images of this book

Errata

Piracy

Questions

1. Installing Docker with Puppet

Installing Vagrant

The installation

VirtualBox

Vagrant

Vagrantfile

Welcome to the Puppet Forge

The Puppet Forge

Creating our puppetfile

Installing Docker

Setting our manifests

Summary

2. Working with Docker Hub

Working with Docker Hub

An overview of Docker Hub

Creating a Docker Hub account

Exploring official images

Automated builds in Docker Hub

Automated builds

Pushing to Docker Hub

Working with official images

Dockerfiles

Docker Compose

Puppet manifest

Summary

3. Building a Single Container Application

Building a Puppet module skeleton

The Puppet module generator

Coding using resource declarations

File structures

Writing our module

Running our module

Coding using .erb files

Writing our module with Docker Compose

Docker Compose up with Puppet

Summary

4. Building Multicontainer Applications

Decoupling a state

State versus stateless

Docker_bitbucket (manifest resources)

Creating our module skeleton

Let's code

Running our module

Docker_bitbucket (Docker Compose)

Let's code – take 2

Running our module – take 2

Summary

5. Configuring Service Discovery and Docker Networking

Service discovery

The theory

The service discovery module

Docker networking

The prerequisites

The code

Summary

6. Multinode Applications

The design of our solution

The Consul cluster

The ELK stack

Putting it all together

The server setup

The Consul cluster

The ELK stack

Summary

7. Container Schedulers

Docker Swarm

The Docker Swarm architecture

Coding

Docker UCP

The Docker UCP architecture

Coding

Kubernetes

The architecture

Coding

Summary

8. Logging, Monitoring, and Recovery Techniques

Logging

The solution

The code

Logstash

Monitoring

Monitoring with Consul

Recovery techniques

Built-in HA

Summary

9. Best Practices for the Real World

Hiera

What data belongs in Hiera

Tips and tricks for Hiera

The code

UCP

Kubernetes

Summary

Index

Puppet for Containerization

Copyright © 2016 Packt Publishing

All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.

Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book.

Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.

First published: May 2016

Production reference: 1130516

Published by Packt Publishing Ltd.

Livery Place

35 Livery Street

Birmingham B3 2PB, UK.

ISBN 978-1-78588-328-6

www.packtpub.com

Credits

Author

Scott Coulton

Reviewer

Ajeet Singh Raina

Commissioning Editor

Sarah Crofton

Acquisition Editor

Rahul Nair

Content Development Editor

Sumeet Sawant

Technical Editor

Dhiraj Chandanshive

Copy Editor

Neha Vyas

Project Coordinator

Shweta H Birwatkar

Proofreader

Safis Editing

Indexer

Rekha Nair

Production Coordinator

Aparna Bhagat

Cover Work

Aparna Bhagat

About the Author

Scott Coulton is a solutions architect with 10 years of experience in the field of managed services and hosting space. He has extensive experience in architecture and in rolling out systems and network solutions for national and multinational companies with a wide variety of technologies including AWS, Puppet, Docker, Cisco, VMware, Microsoft, and Linux. His design strengths are in cloud computing, automation, and security space.

You can find him at https://www.linkedin.com/in/scott-coulton-22864813. You can find him on Twitter at @scottcoulton and on GitHub at https://github.com/scotty-c.

About the Reviewer

Ajeet Singh Raina is a Docker Captain (https://www.docker.com/community/docker-captains) as well as technical lead engineer at Dell India R&D. He has picked up a variety of skills in his career, from having worked as an IT consultant and systems administrator to system integration testi...