Kyverno verifyImages GCP KMS

kyverno-verify-images.yaml

apiVersion: kyverno.io/v1
kind: ClusterPolicy
metadata:
  name: check-image
spec:
  validationFailureAction: enforce
  background: false
  webhookTimeoutSeconds: 30
  failurePolicy: Fail
  rules:
    - name: check-image
      match:
        resources:
          kinds:
            - Pod
      verifyImages:
      - image: "gcr.io/shaped-shuttle-342907/alpine:*"
        key: "gcpkms://projects/shaped-shuttle-342907/locations/global/keyRings/test/cryptoKeys/cosign/versions/1"