apiVersion: kyverno.io/v2beta1
kind: ClusterCleanupPolicy
metadata:
  name: cleanup-old-replicasets
spec:
  match:
    any:
      - resources:
          kinds:
            - ReplicaSet

  conditions:
    all:
      - key: "{{ target.spec.replicas || `0` }}"
        operator: Equals
        value: 0

      - key: "{{ time_diff('{{ target.metadata.creationTimestamp }}','{{ time_now_utc() }}') }}"
        operator: GreaterThan
        value: 168h

  schedule: "0 3 * * *"