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 * [Yevgeniy Brikman](https://blog.gruntwork.io/open-sourcing-terratest-a-swiss-army-knife-for-testing-infrastructure-code-5d883336fcd5) - (2018) Open sourcing Terratest: a swiss army knife for testing infrastructure code | Tools to test Terraform, Packer, Docker, AWS, and much more
 * [Yevgeniy Brikman](https://www.ybrikman.com/writing/2017/10/13/reusable-composable-battle-tested-terraform-modules/) - (2017) Reusable, composable, battle-tested Terraform modules
 * [Yevgeniy Brikman](https://www.infoq.com/presentations/automated-testing-terraform-docker-packer/) - (2019) Automated Testing for Terraform, Docker, Packer, Kubernetes, and More
+* [Cloud Custodian Docs](https://cloudcustodian.io/docs/deployment.html#compliance-as-code) - Compliance as Code | Custodian is a tool for managing cloud environments by ensuring compliance to security policies, tag policies, garbage collection of unused resources, and cost management from a single tool.
 
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