Update disallow-host-ports

Based on disallow-host-ports.

Hier gibt es wieder ein paar mehr Änderungen. Abgesehen davon dass failurePolicy: Fail gesetzt wurde (wie bei !103 und !104 (merged)) hat sich der Name auf host-ports-none geändert. Außerdem sind ephemeralContainers dazu gekommen und in der Spec wird =(hostPort) statt X(hostPort) benutzt.

helm template hat bei mir das ergeben:

apiVersion: kyverno.io/v1
kind: ClusterPolicy
metadata:
  name: disallow-host-ports
  annotations:
    policies.kyverno.io/title: Disallow hostPorts
    policies.kyverno.io/category: Pod Security Standards (Baseline)
    policies.kyverno.io/severity: medium
    policies.kyverno.io/subject: Pod
    kyverno.io/kyverno-version: 1.6.0
    kyverno.io/kubernetes-version: "1.22-1.23"
    policies.kyverno.io/description: >-
      Access to host ports allows potential snooping of network traffic and should not be
      allowed, or at minimum restricted to a known list. This policy ensures the `hostPort`
      field is unset or set to `0`.
  labels:
    app.kubernetes.io/component: kyverno
    app.kubernetes.io/instance: release-name
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/name: kyverno-policies
    app.kubernetes.io/part-of: kyverno-policies
    app.kubernetes.io/version: "3.2.6"
    helm.sh/chart: kyverno-policies-3.2.6
spec:
  validationFailureAction: Audit
  background: true
  failurePolicy: Fail
  rules:
    - name: host-ports-none
      match:
        any:
        - resources:
            kinds:
              - Pod
      validate:
        message: >-
          Use of host ports is disallowed. The fields spec.containers[*].ports[*].hostPort
          , spec.initContainers[*].ports[*].hostPort, and spec.ephemeralContainers[*].ports[*].hostPort
          must either be unset or set to `0`.
        pattern:
          spec:
            =(ephemeralContainers):
              - =(ports):
                  - =(hostPort): 0
            =(initContainers):
              - =(ports):
                  - =(hostPort): 0
            containers:
              - =(ports):
                  - =(hostPort): 0