Kubernetes configurations are complex to manage across developers and operators. External tools like Helm, Kustomize cannot ensure environment-specific configurations and admission controllers provide a way to do this. Now, various tools have evolved over time that helps solve this problem - OPA Gatekeeper, Kyverno, Kubewarden and jsPolicy. In this talk during ContainerDays 2021, Saiyam Pathak from Civo goes through the need for a policy engine and discusses how each of the tools help along with the differences between them and where these are headed to.