apiVersion : kyverno.io/v1
kind: ClusterPolicy
metadata:
  name: imagepullpolicy-always
spec:
  validationFailureAction: audit
  background: false
  rules:
  - name: imagepullpolicy-always
    match:
      resources:
        kinds:
        - Pod
    validate:
      message: "The imagePullPolicy must be set to `Always` for all containers when a tag other than `latest` is used."  
      pattern:
        spec:
          containers:
          - imagePullPolicy: Always