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  • Book Overview & Buying Puppet for Containerization
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Puppet for Containerization

Puppet for Containerization

By : Scott Coulton
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Puppet for Containerization

Puppet for Containerization

5 (1)
By: Scott Coulton
Buy this Book

Overview of this book

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.
Table of Contents (11 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. Installing Docker with Puppet
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1. Installing Docker with Puppet
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Installing Vagrant
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Welcome to the Puppet Forge
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Installing Docker
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Summary
2
2. Working with Docker Hub
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2. Working with Docker Hub
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Working with Docker Hub
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Automated builds in Docker Hub
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Working with official images
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Summary
3
3. Building a Single Container Application
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3. Building a Single Container Application
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Building a Puppet module skeleton
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Coding using resource declarations
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Coding using .erb files
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Summary
4
4. Building Multicontainer Applications
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4. Building Multicontainer Applications
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Decoupling a state
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Docker_bitbucket (manifest resources)
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Docker_bitbucket (Docker Compose)
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Summary
5
5. Configuring Service Discovery and Docker Networking
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5. Configuring Service Discovery and Docker Networking
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Service discovery
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Docker networking
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Summary
6
6. Multinode Applications
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6. Multinode Applications
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The design of our solution
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Putting it all together
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Summary
7
7. Container Schedulers
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7. Container Schedulers
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Docker Swarm
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Docker UCP
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Kubernetes
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Summary
8
8. Logging, Monitoring, and Recovery Techniques
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8. Logging, Monitoring, and Recovery Techniques
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Logging
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Monitoring
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Recovery techniques
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Summary
9
9. Best Practices for the Real World
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9. Best Practices for the Real World
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Hiera
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The code
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Summary
10
Index
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Index

Coding using resource declarations

In this section, we are going to use our module skeleton to build our first Docker application. We are going to write it using standard Puppet manifests.

But first, why is the first module that we are writing Consul? I chose this application for a few reasons. First, Consul has a lot of awesome features such as service discovery and health checks, and can be used as a key/value store. The second reason is that we will use all the features I just mentioned later in the book. So, it will come in handy when we look at Docker Swarm.

File structures

Let's create two new files, install.pp and params.pp, in the manifests folder. The structure should look as shown in the following screenshot:

File structures

Writing our module

Let's start writing our module. We will start with init.pp; this module is not going to be very complex as we are only going to add a few lines of code and some parameters. As you can see in the preceding screenshot, we created three files in the manifests...

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Puppet for Containerization
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