restrict-storageclass.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: K8sStorageClass
metadata:
  name: nist-sp-800-53-r5-restrict-storageclass
  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: '[SI-12,SC-28]',
        severity: 'UNSPECIFIED',
        description: 'Restricts `StorageClass` to a list of `StorageClass` which encrypt by default.',
        remediation: 'Ensure your `StorageClass` uses an allowed `StorageClass`. If your `StorageClass` is encrypted by default, add it to the `allowedStorageClasses` parameter. See "Storage Classes" for more information: https://kubernetes.io/docs/concepts/storage/storage-classes',
        minimumTemplateLibraryVersion: '1.15.1',
        constraintHash: 'b4e4f20ec51dc19d066a70b5060de3230196e49c88fa3150ca2f64c9d46e0f10'
      }"
spec:
  match:
    kinds:
      - apiGroups:
          - ""
        kinds:
          - PersistentVolumeClaim
      - apiGroups:
          - apps
        kinds:
          - StatefulSet
  enforcementAction: dryrun
  parameters:
    includeStorageClassesInMessage: true
    allowedStorageClasses:
      # Listed StorageClasses must encrypt by default
      - standard-rwo
      - premium-rwo
      - standard