{{- $name := "disallow-host-ports" }}
{{- if eq (include "kyverno.podSecurityDefault" (merge (dict "name" $name) .)) "true" }}
apiVersion: kyverno.io/v1
kind: ClusterPolicy
metadata:
  name: {{ $name }}
  annotations:
    policies.kyverno.io/category: Pod Security Standards (Default)
    {{- if .Values.podSecuritySeverity }}
    policies.kyverno.io/severity: {{ .Values.podSecuritySeverity | quote }}
    {{- end }}
    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.
spec:
  validationFailureAction: {{ .Values.validationFailureAction }}
  background: true
  rules:
  - name: host-ports
    match:
      resources:
        kinds:
        - Pod
    validate:
      message: >-
        Use of host ports is disallowed. The fields spec.containers[*].ports[*].hostPort
        and spec.initContainers[*].ports[*].hostPort must be empty.
      pattern:
        spec:
          =(initContainers):
          - =(ports):
              - X(hostPort): 0
          containers:
          - =(ports):
              - X(hostPort): 0
{{- end -}}