- https://www.crossplane.io/
- https://aws-controllers-k8s.github.io/community/
- https://aws.amazon.com/blogs/opensource/enhancing-internal-developer-platform-idp-with-crossplane-on-eks-at-sixt/
- https://github.com/awslabs/crossplane-on-eks
- https://www.openpolicyagent.org/
- https://open-policy-agent.github.io/gatekeeper/website/
- https://open-policy-agent.github.io/gatekeeper/website/docs/gator/
- https://kyverno.io/
- https://nirmata.com/2023/09/08/what-is-kubernetes-validating-admission-policy/
- https://nirmata.com/2023/10/09/using-kubernetes-cel-in-kyverno-policies/
- https://kubernetes.io/docs/reference/access-authn-authz/validating-admission-policy/
- https://www.conftest.dev/
- https://open-policy-agent.github.io/gatekeeper/website/docs/gator/
- https://github.com/yannh/kubeconform
- https://github.com/kubernetes/enhancements/tree/master/keps/sig-api-machinery/2876-crd-validation-expression-language
- https://kubernetes.io/blog/2022/09/23/crd-validation-rules-beta/
- https://kubernetes.io/docs/tasks/extend-kubernetes/custom-resources/custom-resource-definitions/#validation-rules
- https://github.com/kubernetes/enhancements/tree/master/keps/sig-api-machinery/3488-cel-admission-control
- https://aws.amazon.com/blogs/mt/using-opa-to-create-aws-config-rules/