Kubernetes is extensible and allows users to create Custom Resources (CR) and Custom Resource Definition (CRD) that will define the structure and meta-attributes of the future resource. But, you have…

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The blog provides a good understanding of the Common Expression Language CEL and its application in K8S ValidatingAdmissionPolicies. It shows the significance of CEL in validating Custom Resource Definitions (CRDs) and its integration into Kyverno policies for resource validation. The post covers the features introduced in Kubernetes ValidatingAdmissionPolicies and demonstrates the use of CEL expressions in Kyverno policies to validate resources.

Introducing Kubernetes Validation with — Common Expression Language — CEL

Kyverno: A Policy Engine for k8s Resource Validation:

Using CEL Expressions in Kyverno Policies: