4. Public Modules
by Thomas Uphillis, Jaime Soriano Pastor, Alessandro Franceschi, Martin Alfke, Feli
Puppet: Mastering Infrastructure Automation
- Puppet: Mastering Infrastructure Automation
- Table of Contents
- Puppet: Mastering Infrastructure Automation
- Puppet: Mastering Infrastructure Automation
- Credits
- Preface
- 1. Module 1
- 1. Writing Your First Manifests
- 2. The Master and Its Agents
- 3. A Peek under the Hood – Facts, Types, and Providers
- 4. Modularizing Manifests with Classes and Defined Types
- 5. Extending Your Puppet Infrastructure with Modules
- An overview of Puppet's modules
- Maintaining environments
- Building a specific module
- Naming your module
- Making your module available to Puppet
- Implementing basic module functionality
- Creating utilities for derived manifests
- Enhancing the agent through plugins
- Enhancing Puppet's system knowledge through facts
- Refining the interface of your module through custom functions
- Making your module portable across platforms
- Finding helpful Forge modules
- Summary
- 6. Leveraging the Full Toolset of the Language
- 7. New Features from Puppet 4
- 8. Separating Data from Code Using Hiera
- 2. Module 2
- 1. Puppet Essentials
- The Puppet ecosystem
- Puppet components
- Installing and configuring Puppet
- Puppet in action
- Variables, facts, and scopes
- Meta parameters
- Managing order and dependencies
- Reserved names and allowed characters
- Conditionals
- Comparison operators
- Iteration and lambdas
- Exported resources
- Modules
- Restoring files from a filebucket
- Summary
- 2. Managing Puppet Data with Hiera
- 3. Introducing PuppetDB
- 4. Designing Puppet Architectures
- 5. Using and Writing Reusable Modules
- 6. Higher Abstraction Modules
- 7. Puppet Migration Patterns
- 8. Code Workflow Management
- 9. Scaling Puppet Infrastructures
- 10. Extending Puppet
- 11. Beyond the System
- 12. Future Puppet
- 1. Puppet Essentials
- 3. Module 3
- 1. Dealing with Load/Scale
- 2. Organizing Your Nodes and Data
- 3. Git and Environments
- 4. Public Modules
- 5. Custom Facts and Modules
- 6. Custom Types
- 7. Reporting and Orchestration
- 8. Exported Resources
- 9. Roles and Profiles
- 10. Troubleshooting
- A. Bibliography
- Index
The default types shipped with Puppet can be used to do almost everything you need to do to configure your nodes. When you need to perform more tasks than the defaults can provide, you can either write your own custom modules or turn to the Forge (http://forge.puppetlabs.com/) and use a public module. Puppet Forge is a public repository of shared modules. Several of these modules enhance the functionality of Puppet, provide a new type, or solve a specific problem. In this chapter, we will first cover how to keep your public modules organized for your enterprise then we will go over specific use cases for some popular modules.
Modules are just files and a directory structure. They can be packaged as a ZIP archive or shared via a Git repository. Indeed, most modules are hosted on GitHub in addition to Puppet Forge. You will find most public modules on the Forge, and the preferred method to keep your modules up to date is to retrieve them from the Forge.
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