policies/kyverno/cluster-policies/1-dep-pod-labels.yaml

apiVersion: kyverno.io/v1
kind: ClusterPolicy
metadata:
  name: deployment-require-labels
  labels:
    app: kyverno
    owner: jimmy
  annotations:
    policies.kyverno.io/category: Compliance
    policies.kyverno.io/description: Rules to enforce labels on Deployment and Pod resources
spec:
  validationFailureAction: enforce
  rules:
  - name: deployment-labels
    match:
      resources:
        kinds:
        - Deployment
    validate:
      message: "labels app, owner, env are required"
      pattern:
        metadata:
          labels:
            app: "?*"
            owner: "?*"
            env: "?*"
  - name: pod-labels
    match:
      resources:
        kinds:
        - Pod
    validate:
      message: "labels app, owner, env are required"
      pattern:
        metadata:
          labels:
            app: "?*"
            owner: "?*"
            env: "?*"