Infrastructure as Code (IaC) means defining and managing your infrastructure (servers, networks, databases) through code/configuration files rather than manual setup. Tools like CloudFormation, Terraform, and CDK make infrastructure repeatable, version-controlled, and automated.
The problem IaC solves
MANUALLY setting up infrastructure (clicking in the Console) is:
→ not REPEATABLE (hard to recreate identically; error-prone)
→ not VERSIONED (no history of what changed, by whom, why)
→ not DOCUMENTED (the setup lives only in someone's memory/clicks)
→ hard to review, share, or roll back
→ IaC defines infrastructure in CODE → solving all of this.
