apiVersion: kyverno.io/v1alpha1
kind: ClusterPolicy
metadata:
  name: validate-hostpid-hostipc
spec:
  rules:
  - name: validate-hostpid-hostipc
    match:
      resources:
        kinds:
        - Pod
    validate:
      message: "Disallow use of host's pid namespace and host's ipc namespace"
      pattern:
        spec:
          (hostPID): "!true"
          hostIPC: false