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13.6Key Takeaways
- Static analysis is free -- run tfsec, Checkov, and OPA on every commit. There is no excuse for skipping it.
- Plan assertions catch what static analysis cannot -- analyzing the actual plan output reveals resource replacements, destroy operations, and drift.
- Terratest is expensive but irreplaceable -- some things can only be verified by deploying real infrastructure. Reserve this for critical modules.
- Container scanning is a continuous process -- images accumulate new CVEs daily. Scan on build and periodically in your registry.
- Ephemeral environments transform confidence -- testing against a real copy of your infrastructure eliminates "works on my machine" for cloud resources.
- AI agents add a qualitative layer -- they can explain complex plans, suggest optimizations, and catch patterns that rule-based tools miss.