Turning a live environment into infrastructure as code is not simply a matter of generating resource blocks. Existing systems contain years of decisions, exceptions, naming patterns, dependencies, and manual changes.
A successful migration must capture both the resources and the operating intent behind them.
Import first, reorganize carefully
The safest sequence is to establish an accurate state representation, confirm that the configuration produces a no-change plan, and only then begin extracting reusable modules. Trying to redesign the architecture at the same time as importing it makes every unexpected change harder to explain.
- Inventory resources and dependencies before writing modules.
- Import into a configuration that mirrors the live environment.
- Resolve every unexpected plan difference before refactoring.
- Separate environment-specific values from reusable behavior.
The goal is safe change
Infrastructure as code is valuable because it makes changes reviewable, repeatable, and recoverable. A technically elegant module that nobody trusts is less useful than a clear configuration that the team can safely operate.