Puppet Essentials

Each participant will leave with a recognised certificate

• The course is presented as a mixture of lectures and hands-on exercises.
• Exercises are provided for both the Enterprise and Open Source versions of Puppet.
• Introduction to Configuration Management
• Why do we need Configuration Management?
• What are the components of Configuration Management?
• What are the benefits of Configuration Management?
• What is the Configuration Management life cycle?
• What are the common tools for Configuration Management?
• Puppet Overview
• Puppet Enterprise stack and features
• Model based approach
• Composable configurations
• Lifecycle of a puppet run
• Puppet component roles (master / agent)
• Master / agent architecture
• Puppet Components
• Describing and maintaining state
• Infrastructure as code
• Idempotency
• Resources
• Live management
• Facter, Hiera and Puppet forge
• Managing assets with Git
• Source Control
• Version Control
• Centralised and Distributed Version Control Systems
• GIT as a DVCS
• GIT Basics
• Choosing a DVCS
• The SSH Protocol
• Resources and Providers
• Puppet resources
• Resource declarations
• Resource Abstraction Layer
• Providers
• Modules and Classes
• Puppet Classes
• Puppet Modules
• Module Directory Structure
• Namespaces and Auto-loading
• Testing Classes
• Using Puppet Without a Master
• Puppet Usage Patterns
• Masterless Puppet - in short
• Benefits of going 'Masterless'
• What would you have to do?
• Problems with going 'Masterless'
• Deploying Your Code to the Puppet Master
• A Git to Puppet Workflow
• Git and Puppet Master
• Single or Multiple Repositories?
• Managing Multiple Masters
• Testing Puppet
• Syntax checking
• The Smoke test
• Simulating change with Puppet
• Virtualisation
• Module testing frameworks
• Unit testing modules
• Test Driven Development - TDD
• Using Puppet Forge
• Puppet Forge
• Using the Puppet Forge online
• The puppet module tool - PMT
• Search for modules
• Install a module from Puppet Forge
• Uninstall a module
• Publish a module to the Puppet Forge
• Classification
• What is Classification?
• Node Definitions: site.pp
• Regular Expressions in Node Definitions: site.pp
• Console Classification
• Console Classification - Node Definitions
• Console Classification - Node Groups
• Environments
• What are Environments?
• Environment Directory Structure
• Configure Puppet Master to use Directory Environments
• Global Settings for Configuring Environments
• Assign Nodes to their environments
• Preconfigured Node Groups
• Environment-based Workflow
• What is Live Management?
• Inspect node Resources
• Control Puppet
• ERB templates
• Use cases for ERB Templates
• Using templates
• Using Puppet variables
• Defining Puppet variables
• ERB Conditions
• Resources in depth
• Resource type origins
• Resource type categories
• Meta resource types
• Resource type documentation
• Metaparameters
• title and namevar
• Resource relationships
• Dependency management
• Implicit dependencies
• DSL - Domain Specific Language
• Using Puppet variables (facts)
• Defining local variables
• Using variables
• Variable scope
• Strings and arrays
• Conditional expressions: if, selectors, case, unless
• Statements and functions
• Parametrised types
• Parameterised Classes and Inheritance
• Defining a Parameterised Class
• Assigning Parameters in the PE Console
• Class Inheritance - base class declaration
• Class Inheritance - sub class declaration
• Class Inheritance - Best Practice
• Defined resource types
• Hiera
• What is Hiera?
• Why use Hiera?
• Configuring Hiera
• Yaml file locations
• Sample data files
• Automatic data bindings
• Explicit Hiera lookup
• Testing Hiera
• PuppetDB
• What is PuppetDB?
• What is stored in PuppetDB?
• How is PuppetDB accessed?
• Example queries
• Dashboards
• PuppetDBquery module
• Troubleshooting
• Troubleshooting Puppet classes and Modules
• Troubleshooting Puppet Installations
• Puppet Best Practices
• Using Modules
• Naming Conventions
• Style
• Classes Vs Defined Types
• Roles