This document summarizes a meetup about infrastructure as code. It discusses the differences between treating infrastructure as "pets" versus "cattle", where pets are cared for individually and cattle are treated as disposable. When infrastructure is coded declaratively using tools like Terraform, the infrastructure can be version controlled, updated continuously, and rolled back like code. The meetup demonstrated setting up infrastructure on Azure using Terraform to define resources like virtual machines in code. Advanced techniques like storing state remotely and using modules were also discussed.