Explore a comprehensive conference talk on creating a pipeline to validate Open Policy Agent (OPA) policies in a DevOps context. Learn how to streamline the validation process for Rego policies using unit, mock, and integration testing techniques. Discover strategies for validating OPA policy changes against application manifests before applying them to production environments with OPA Gatekeeper. Witness a live demonstration showcasing the use of Rego unit tests, application Kubernetes manifests as input data for OPA test suites, and Terratest for end-to-end integration testing on ephemeral clusters. Gain insights into deploying validated policy changes using a GitOps strategy to live clusters. Enhance your understanding of OPA implementation and optimization in Kubernetes environments through this informative 18-minute presentation from KubeCon + CloudNativeCon Europe 2021.