notes

Basics

Definitions

1. Node - an individual server or device managed by Puppet.
2. Resources - single units of configuration in Puppet.
3. Provider - is the translation layer that sits between Puppet’s resource representation and the native system tools it uses to discover and modify the underlying system state.
4. Class - a collection of Puppet code that makes a sense as a logical group.
5. Manifest - a text file for holding Puppet code (usually .pp file).
6. Profile - a class that defines a specific set of configuration. Should be limited to a single unit of configuration: like nginx server, or database.
7. Role - a class that defines the business role of a node.
   • each node should have only one role
   • made up only from profiles

Docs

1. Get list of resources

    puppet describe --list
   

2. Get resource documentation

    puppet describe service
   

Development

1. View puppet resource

    puppet resource file /tmp/test
   

2. Validate file

    puppet parser validate file
   

3. Preview changes

    puppet agent -t --noop
   

4. Preview changes with file diff

    puppet agent -t --noop --show_diff