5.2.4_psp-host-network-ports.yaml

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# Licensed under the Apache License, Version 2.0 (the "License");
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#      http://www.apache.org/licenses/LICENSE-2.0
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apiVersion: constraints.gatekeeper.sh/v1beta1
kind: K8sPSPHostNetworkingPorts
metadata:
  name: cis-k8s-v1.5.1-psp-host-network-ports
  labels:
    policycontroller.gke.io/bundleName: cis-k8s-v1.5.1
  annotations:
    # This constraint is not certified by CIS.
    policycontroller.gke.io/constraintData: |
      "{
        bundleName: 'cis-k8s-v1.5.1',
        bundleDisplayName: 'CIS Kubernetes Benchmark v1.5.1',
        bundleLink: 'https://cloud.google.com/anthos-config-management/docs/how-to/using-cis-k8s-benchmark',
        bundleVersion: '202301.0',
        bundleDescription: 'Use the CIS Kubernetes Benchmark 1.5.1 policy bundle with Anthos Policy Controller to evaluate the compliance of your cluster resources against the CIS Kubernetes Benchmark, which is a set of recommendations for configuring Kubernetes to support a robust security posture.',
        controlNumbers: '[5.2.4]',
        severity: 'UNASSIGNED',
        description: 'Restricts containers from running with the `hostNetwork` flag set to `true`.',
        remediation: 'Containers are restricted from running with `hostNetwork` set to `true`, please remove the `hostNetwork: true` from your containers.',
        minimumTemplateLibraryVersion: '1.11.1'
      }"
spec:
  enforcementAction: dryrun
  match:
    kinds:
    - apiGroups:
      - ""
      kinds:
      - Pod
    excludedNamespaces:
    - kube-system
  parameters:
    hostNetwork: false
    min: 1
    max: 65535