What is Infrastructure as Code? — UK Software Development Guide

4 min readJune 2025ClickMasters Technical TeamReviewed by James Whitmore, CTO
what is infrastructure as code

Direct Answer

Infrastructure as Code (IaC) is the practice of managing and provisioning computing infrastructure through machine-readable configuration files rather than manual processes. Instead of clicking through cloud consoles, infrastructure is defined in code (Terraform, AWS CloudFormation, Azure Bicep) and applied consistently across environments.

Infrastructure-as-code in the UK

IaC has specific UK compliance value. Cyber Essentials Secure Configuration control: IaC enforces consistent, audited configuration — no drift between environments due to manual changes. UK GDPR: IaC files in version control provide a documented history of infrastructure configuration changes, supporting ICO accountability requirements. FCA operational resilience: IaC enables rapid environment rebuild (reduced RTO) and documents the configuration of systems handling financial data. ClickMasters uses Terraform for all AWS and Azure projects — the IaC code is delivered to clients as part of the project handover.

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