What is Infrastructure as Code?

Infrastructure as Code (IaC) is the practice of managing and provisioning infrastructure (servers, networks, databases) through machine-readable definition files, rather than manual processes or interactive configuration tools. The benefits are huge: repeatability, version control, auditability, and speed.

Terraform by HashiCorp is one of the most popular IaC tools. It's cloud-agnostic, meaning you can use the same workflow to manage AWS, Azure, GCP, or even on-prem resources.

Core Concepts

1. Declarative Configuration