Introduction Have you ever written terraform code and found that your code paths covered edge cases that were only in production? Or perhaps, written a reusable terraform module that you needed some way to test and prove worked as expected? When you write software, it’s very often expected to write tests to prove the software is works as intended and is relatively bug free. With Infrastructure as Code, testing is often an afterthought, if ever even considered, which can make testing such things difficult.

Introduction & Background Hi, I’m Mueez Khan. I’m currently an undergraduate Computer Science student at Rutgers University, and I was a remote summer intern at Rearc from June to September, 2022. In this article we’ll go over various projects and achievements during my internship at Rearc. About Rearc Rearc is a boutique cloud software & services firm with engineers that have years of experience shaping the cloud journey of large scale enterprises.

Terraform is no doubt a popular go-to for developers looking to manage their infrastructure as code. It’s powered by HCL, a declarative configuration language from HashiCorp, that in many cases offers a powerful way to deploy infrastructure where the author can just focus on the “what” (desired state) and let the tool figure out the “how” to reconcile changes needed in the live environment. Sometimes though, operations personnel require more precise control over how changes get applied in order to minimize impact to live systems.