Testing Infrastructure as Code Using OpenTofu and Localstack
summary
Demonstrates writing unit and end-to-end tests for OpenTofu modules and orchestration repos using OpenTofu with a local AWS mock like Localstack, showing concrete examples: an S3 bucket module (plan tests for argument checks, apply tests to populate attributes and catch error cases) and a CloudWatch-alarms stack that builds VPC→EC2→alarms, deploys then tears down during tests. Claims tests run repeatedly and in parallel, notes ~50 services in free tier and roughly 60% API coverage by mocks.
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chapters (11)
- 0:00Introduction
- 1:02IaC deployment challenges
- 4:11Testing IaC like apps
- 5:17Module vs orchestration repos
- 6:00Unit testing modules
- 7:24Demo: S3 bucket unit test
- 11:02LocalStack in IaC testing
- 14:32Testing modules with VPC/EC2
- 17:25End-to-end orchestration tests
- 20:58LocalStack setup alternatives
- 22:05Q&A
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