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  • Book Overview & Buying Extending Puppet
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Extending Puppet

Extending Puppet

By : Alessandro Franceschi
4.9 (16)
Buy this Book
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Extending Puppet

Extending Puppet

4.9 (16)
By: Alessandro Franceschi
Buy this Book

Overview of this book

This book is a clear, detailed and practical guide to learn about designing and deploying you puppet architecture, with informative examples to highlight and explain concepts in a focused manner. This book is designed for users who already have good experience with Puppet, and will surprise experienced users with innovative topics that explore how to design, implement, adapt, and deploy a Puppet architecture. The key to extending Puppet is the development of types and providers, for which you must be familiar with Ruby.
Table of Contents (14 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. Puppet Essentials
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1. Puppet Essentials
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The Puppet ecosystem
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Puppet components
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Installation and configuration
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Puppet in action
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Summary
2
2. Hiera
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2. Hiera
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Installing and configuring Hiera
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Working with the command line on a YAML backend
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Using Hiera in Puppet
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Additional Hiera backends
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Using Hiera as an ENC
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Summary
3
3. PuppetDB
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3. PuppetDB
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Installation and configuration
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Dashboards
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The PuppetDB API
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Querying PuppetDB for fun and profit
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The puppetdbquery module
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How Puppet code may change in the future
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Summary
4
4. Designing Puppet Architectures
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4. Designing Puppet Architectures
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The components of Puppet architecture
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The Foreman
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Roles and profiles
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The data and the code
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Sample architectures
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Summary
5
5. Using and Writing Reusable Modules
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5. Using and Writing Reusable Modules
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The evolution of modules' layouts
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The parameters dilemma
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Reusability patterns
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Summary
6
6. Higher Abstraction Modules
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6. Higher Abstraction Modules
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Understanding the need for higher abstractions
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The OpenStack example
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An approach to reusable stack modules
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Summary
7
7. Deploying and Migrating Puppet
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7. Deploying and Migrating Puppet
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Examining the potential scenarios and approaches
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Patterns for extending Puppet coverage
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Things change
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Summary
8
8. Code Workflow Management
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8. Code Workflow Management
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Writing the Puppet code
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Git workflows
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Code review
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Testing the Puppet code
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Deploying the Puppet code
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Propagating Puppet changes
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Puppet Continuous Integration tools
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Summary
9
9. Scaling Puppet Infrastructures
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9. Scaling Puppet Infrastructures
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Scaling Puppet
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Scaling stored configs
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Measuring performance
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Summary
10
10. Writing Puppet Plugins
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10. Writing Puppet Plugins
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Anatomy of a Puppet run, under the hood
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Custom report handlers
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Custom faces
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Summary
11
11. Beyond the System
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11. Beyond the System
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Puppet on a network equipment
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Puppet for cloud and virtualization
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Puppet on storage devices
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Summary
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12. Future Puppet
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12. Future Puppet
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Introducing the future parser
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Other new features
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Improved error system
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Data in modules
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Facter 2
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Trapperkeeper
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Summary
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Index
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Index

Chapter 7. Deploying and Migrating Puppet

We're probably already working with Puppet, or we are planning to use it in the near future. In any case, we have to face the daunting task of automating the configuration and reproducing the state of a variable number of different servers.

Using Puppet for a server infrastructure involves analysis, planning, and decisions.

In this chapter, we will review the different aspects to be considered in our journey towards infrastructure automation:

  • The possible scenarios we might face can involve new setups, migrations, and updates of the existing systems
  • How we can manage Puppet migrations with a step–by-step approach divided in reiterated phases such as information gathering, priorities definition, an evaluation on how to proceed, coding, testing, applying the changes, and verifying their reports
  • The cultural and procedural changes that configuration management involves
CONTINUE READING
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Tech Concepts
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Programming languages
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Extending Puppet
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