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Mastering Puppet

Mastering Puppet

By : Thomas Uphill
3.9 (13)
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Mastering Puppet

Mastering Puppet

3.9 (13)
By: Thomas Uphill
Buy this Book

Overview of this book

Presented in an easy-to-follow, step-by-step tutorial format and packed with examples, this book will lead you through making the best out of Puppet in an enterprise environment. If you are a system administrator or developer who has used Puppet in production and are looking for ways to easily use Puppet in an enterprise environment, this book is for you. This book assumes an intermediate knowledge of Puppet and is intended for those writing modules or deploying Puppet in an enterprise environment.
Table of Contents (12 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. Dealing with Load/Scale
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1. Dealing with Load/Scale
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Divide and conquer
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Conquer by dividing
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Summary
2
2. Organizing Your Nodes and Data
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2. Organizing Your Nodes and Data
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Getting started
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Organizing the nodes with ENC
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Hiera
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Summary
3
3. Git and Environments
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3. Git and Environments
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Environments
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Git
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Git for everyone
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Summary
4
4. Public Modules
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4. Public Modules
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Getting modules
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Using GitHub for public modules
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Modules from the Forge
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Using librarian
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Using r10k
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Using modules
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Summary
5
5. Custom Facts and Modules
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5. Custom Facts and Modules
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Module manifest files
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Custom facts
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Summary
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6. Custom Types
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6. Custom Types
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Parameterized classes
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Defined types
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Types and providers
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Summary
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7. Reporting and Orchestration
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7. Reporting and Orchestration
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Turning on reporting
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Syslog
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Store
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IRC
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Foreman
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Puppet Dashboard
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Summary
8
8. Exported Resources
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8. Exported Resources
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Configuring puppetdb – using the forge module
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Manually installing puppetdb
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Exported resource concepts
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Simple example: a host entry
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Resource tags
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Putting it all together
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Summary
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9. Roles and Profiles
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9. Roles and Profiles
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Design pattern
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Creating an example CDN role
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Dealing with exceptions
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Summary
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10. Troubleshooting
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10. Troubleshooting
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Connectivity issues
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Catalog failures
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Debugging
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Summary
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Index
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Index

Summary

In this chapter, we have seen how to configure Puppet to work in different environments. We have seen how having hieradata in different environments can allow developers to work independently.

Leveraging the utility of Git and Git Hooks, we can have custom build environments for each developer built automatically when the code is checked into our Git repository. This will allow us to greatly increase our developers' productivity and allow a team full of system administrators to work simultaneously on the same code base.

Tip

When your system administrators work on the same code, they will inevitably run into situations where they have edited the same code as each other. This leads to conflicts. Merging conflicts is a big part of working in a large group. There are numerous resources available only to help resolve merging issues. The Git branching game at http://pcottle.github.io/learnGitBranching/ is a good place to start.

In the next chapter, we'll see how public modules from...

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