Glossary

IaC (Infrastructure as Code)

Defining cloud infrastructure (servers, networks, databases, IAM) in declarative configuration files instead of clicking through consoles.

Definition

Infrastructure as Code treats cloud resources as declarative configuration kept in version control — Terraform (cloud-agnostic), AWS CDK (typed, AWS-native), Pulumi (typed, cloud-agnostic) and CloudFormation (AWS-native) are the dominant tools. IaC enables reproducible environments, code review of infrastructure changes, drift detection and disaster recovery.

Why it matters

Without IaC, your production environment is a folklore artefact — nobody can re-create it confidently. With IaC, you can spin up a staging clone, recover from regional outages, and review infrastructure changes the way you review code changes.

See also

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