apiVersion: kyverno.io/v1
kind: ClusterPolicy
metadata:
  name: test-multiple-key
spec:
  validationFailureAction: enforce
  background: false
  rules:
  - name: test-multiple-key
    match:
      resources:
        kinds:
        - Pod
    validate:
      deny:
        conditions:
          any:
          - key: 
              - "{{request.object.metadata.labels.app}}"
            operator: NotIn
            value: 
            - "busybox"
            - "busybox1"