host-network.yaml

# Copyright 2024 Google LLC
#
# This is “Software” that is licensed under the “General Software” section of
# the Service Specific Terms (https://cloud.google.com/terms/service-terms) for
# usage in accordance with the following “Scope of Use”: This file may only be
# used on an Anthos cluster, including any associated ci/cd use. “Anthos
# cluster” is defined as “A Cluster (of any kind) registered to a fleet project
# where the Anthos API is enabled”.
apiVersion: constraints.gatekeeper.sh/v1beta1
kind: K8sPSPHostNetworkingPorts
metadata:
  name: nist-sp-800-53-r5-host-network
  labels:
    policycontroller.gke.io/bundleName: nist-sp-800-53-r5
  annotations:
    policycontroller.gke.io/bundleVersion: "202403.0"
    policycontroller.gke.io/constraintData: |-
      "{
        bundleName: 'nist-sp-800-53-r5',
        bundleDisplayName: 'NIST SP 800-53 Rev. 5',
        bundleLink: 'https://cloud.google.com/anthos-config-management/docs/how-to/using-nist-sp-800-53-r5',
        bundleVersion: '202403.0',
        bundleDescription: 'Use the NIST SP 800-53 Rev. 5 policy bundle with Policy Controller to evaluate the compliance of your cluster resources against some aspects of the NIST SP 800-53 Rev. 5 controls.',
        controlNumbers: '[CM-3,CM-7]',
        severity: 'UNSPECIFIED',
        description: 'Restricts containers from running with the `hostNetwork` flag set to `true`.',
        remediation: 'Containers cannot run with `hostNetwork` set to `true`. Remove `hostNetwork: true` from your containers.',
        minimumTemplateLibraryVersion: '1.11.1',
        constraintHash: '0a5a8fab505744697e9c36858e534c6204888d96e7c81e8d04279f4e0f7287d7'
      }"
spec:
  enforcementAction: dryrun
  match:
    kinds:
    - apiGroups:
      - ""
      kinds:
      - Pod
    excludedNamespaces:
    - kube-system
  parameters:
    hostNetwork: false
    min: 1
    max: 65535