These are the building blocks (e.g., puppetlabs-apache ). They handle the "how" but shouldn't contain business-specific data.

Puppet Best Practices: Design Patterns for Maintainable Code

Use Hiera to provide defaults and overrides based on facts like environment or OS.

These wrap component modules to define a specific technology stack (e.g., profile::webserver ). They handle local logic and Hiera lookups.

This is the "gold standard" for Puppet abstraction. It separates your technology-specific code from your business logic, making your codebase modular and readable.

These are the high-level descriptions of a machine's function (e.g., role::app_server ). A node should ideally have only one role . 2. Separation of Code and Data (Hiera)

Writing Puppet code is easy; maintaining it as your infrastructure grows from five nodes to five thousand is the real challenge. To avoid "spaghetti manifests" and technical debt, you need to move beyond simple scripting and embrace declarative design patterns. 1. The Roles and Profiles Pattern

Puppet Best Practices: Design Patterns For Main... May 2026

These are the building blocks (e.g., puppetlabs-apache ). They handle the "how" but shouldn't contain business-specific data.

Puppet Best Practices: Design Patterns for Maintainable Code Puppet Best Practices: Design Patterns for Main...

Use Hiera to provide defaults and overrides based on facts like environment or OS. These are the building blocks (e

These wrap component modules to define a specific technology stack (e.g., profile::webserver ). They handle local logic and Hiera lookups. These wrap component modules to define a specific

This is the "gold standard" for Puppet abstraction. It separates your technology-specific code from your business logic, making your codebase modular and readable.

These are the high-level descriptions of a machine's function (e.g., role::app_server ). A node should ideally have only one role . 2. Separation of Code and Data (Hiera)

Writing Puppet code is easy; maintaining it as your infrastructure grows from five nodes to five thousand is the real challenge. To avoid "spaghetti manifests" and technical debt, you need to move beyond simple scripting and embrace declarative design patterns. 1. The Roles and Profiles Pattern