kyverno/test/Endpoint/policy-endpoints.yaml

apiVersion : kyverno.io/v1alpha1
kind : Policy
metadata :
  name : policy-endpoints
spec :
  rules:
    - name: pEP
      resource:
        kind : Endpoints
        selector:
          matchLabels:
            label : test
      mutate:
        patches:
          - path : "/subsets/0/ports/0/port"
            op : replace
            value: 9663
          - path : "/subsets/0"
            op: add
            value:
              addresses:
              - ip: "192.168.10.172"
              ports:
              - name: load-balancer-connection
                port: 80
                protocol: UDP
      validate:
        message: "This resource has wrong IP"
        pattern:
          subsets:
          - addresses:
            - ip: "192.168.10.171|192.168.10.172"