Mastering Chef Provisioning

Chapter 4. Custom Resources

In this chapter, we're going to discuss the exciting changes released in Chef 12.5 that transform the old LWRPs and HWRPs into the much easier-to-create and use Custom Resources. We'll start with a look at the differences between the old and new, but by the end of the chapter, the reader will know how to build and use Custom Resources.

"To me, my recipes are priceless." – Colonel Sanders

Here is a list of the topics covered in this chapter:

• Out with the old (LWRPs), in with the new (Custom Resources)
• Creating an example use case
• Creating and using a Custom Resource
• Making a Custom Resource more reusable
• Subclassing a Custom Resource

Out with the old (LWRPs), in with the new (Custom Resources)

When Chef was created, the Chef ...