Chef DevOps Cookbook Development & Resource Management 2

Question 1

Where are Chef custom resources defined within a cookbook?

Accepted Answer

In the `resources/` directory as `.rb` files

Answer

Custom resources are placed in the `resources/` directory, where each `.rb` file defines a reusable resource with properties and action blocks.

Question 2

In a Chef custom resource definition, what keyword is used to declare an action block?

Accepted Answer

action

Answer

The `action` keyword in a custom resource file declares a named action block containing the recipe DSL steps to execute when that action is called.

Question 3

What is the Chef 'wrapper cookbook' pattern?

Accepted Answer

A cookbook that depends on a community cookbook and overrides its attributes to customize behavior

Answer

The wrapper cookbook pattern creates a thin cookbook that sets attributes and calls recipes from a community cookbook, keeping customizations separate from upstream code.

Question 4

What does `include_recipe` do when called inside a Chef recipe?

Accepted Answer

It adds another recipe's resources to the current run context in order

Answer

`include_recipe 'cookbook::recipe'` inserts all of the named recipe's resources into the current resource collection at compile time, in the order called.

Question 5

What is a Chef 'data bag' used for?

Accepted Answer

A global JSON data store on the Chef Server for sharing configuration data across nodes

Answer

Data bags are indexed collections of JSON objects stored on the Chef Server, accessible from any recipe to share secrets, user lists, or global configuration data.

Chef DevOps Practice Test

Chef DevOps Practice Test

Chef DevOps Cookbook Development & Resource Management 2