Chef Intermediate Topics

Summary

Chef Intermediate Topics is an instructor-led course that first introduces you to test-driven development (TDD) and then shows you how to extend your cookbooks with custom resources and Ohai plugins.

Description

Chef Intermediate Topics is an instructor-led course that first introduces you to test-driven development (TDD) and then shows you how to extend your cookbooks with custom resources and Ohai plugins.

Building cookbooks with tests will increase the speed at which you work by giving you consistent feedback throught the entire cookbook developoment process. Extending your cookbooks with custom resources will increase clarity within your recipes and provide resources that are portable to other cookbooks. Ohai plugins gather data from your nodes that will aid in more dynamic recipes and extensive reporting.

In this course, you will learn how to confidently refactor and extand a cookbook through explanation, demonstration, practice, and discussion. At the end of the course, you will have created a code repository that can be applied to solve the unique challenges you face managing your infrastructure.

Two day course agenda:

  • Introduction
  • Why write tests? Why is that hard?
  • Writing a test first
  • Refactoring cookbooks with tests
  • Faster feedback with unit testing
  • Testing resources in recipes
  • Refactoring to attributes
  • Refactoring to multiple platforms
  • Approaches to extending resources
  • Why use custom resources
  • Creating a custom resource
  • Refining a custom resource
  • Ohai
  • Ohai plugins
  • Creating an Ohai plugin
  • Tuning Ohai

 

To take this course, you should have completed Chef Fundamentals or Chef Essentials or have comparable work experience. You should have working knowledge of core Chef concepts and resources.

Workstation Requirements:

For in person classes, you will need to bring a WiFi enabled laptop to class and will need admin/root access on the machine. You will need the ability to remote into the virtual machines provided in class.

 


Duration

2 Days