What Is Infrastructure as Code and Why It Matters

Infrastructure as code replaces clicking through a console with version-controlled definitions of your environment. That shift from manual to declarative is the foundation of modern operations.
The payoff is consistency and repeatability: the same definition produces the same environment every time, and changes become reviewable like any other code. It is how teams scale beyond what one person can remember.
- Infrastructure is defined in version-controlled files
- Environments become reproducible and auditable
- Changes go through review like application code
- Disaster recovery becomes a rerun, not a rebuild
Start small by defining one service as code, then expand as the pattern proves itself.