prohibit-role-wildcard-access.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: K8sProhibitRoleWildcardAccess
metadata:
  name: policy-essentials-v2022-prohibit-role-wildcard-access
  labels:
    policycontroller.gke.io/bundleName: policy-essentials-v2022
  annotations:
    policycontroller.gke.io/constraintData: |
      "{
        bundleName: 'policy-essentials-v2022',
        bundleDisplayName: 'Policy Essentials v2022',
        bundleLink: 'https://github.com/GoogleCloudPlatform/acm-policy-controller-library/tree/master/bundles/policy-essentials-v2022',
        bundleVersion: '202301.0',
        bundleDescription: 'Use the Policy Essentials v2022 policy bundle with Anthos Policy Controller to apply Google recommended best practices to your cluster resources.',
        controlNumbers: '[]',
        severity: 'UNASSIGNED',
        description: 'Restricts the use of wildcards in `Roles` and `ClusterRoles`.',
        remediation: 'The use of the wildcard character  in `Roles` and `ClusterRoles` is restricted. Remove all wildcards from your `Roles` and `ClusterRoles`. See “RoleBinding and ClusterRoleBinding” for more information: https://kubernetes.io/docs/reference/access-authn-authz/rbac/#rolebinding-and-clusterrolebinding',
        minimumTemplateLibraryVersion: '1.12.0'
      }"
spec:
  enforcementAction: dryrun
  match:
    excludedNamespaces:
    - gke-connect
    - resource-group-system
  parameters:
    exemptions:
      clusterRoles:
      - name: config-management-operator
      - name: configsync.gke.io:ns-reconciler
      - name: cluster-admin
      - name: external-metrics-reader
      - name: gatekeeper-manager-role
      - name: ^istio-reader-clusterrole-asm-[0-9]{4}-[0-9]-istio-system$
        regexMatch: true
      - name: istio-reader-istio-system
      - name: ^istiod-clusterrole-asm-[0-9]{4}-[0-9]-istio-system$
        regexMatch: true
      - name: istiod-istio-system
      - name: istiod-gke-system
      - name: kubelet-api-admin
      - name: metering
      - name: resource-group-manager-role
      - name: servicemesh
      - name: anet-operator-cluster-role
      - name: cilium
      - name: cilium-operator
      - name: stackdriver-operator
      - name: system:controller:disruption-controller
      - name: system:controller:generic-garbage-collector
      - name: system:controller:horizontal-pod-autoscaler
      - name: system:controller:namespace-controller
      - name: system:controller:resourcequota-controller
      - name: system:gcp-controller-manager
      - name: system:gke-common-webhooks
      - name: system:gke-hpa-actor
      - name: system:gke-master-resourcequota
      - name: system:glbc-status
      - name: system:kube-controller-manager
      - name: system:kubestore-collector
      - name: system:kubelet-api-admin
      - name: system:managed-certificate-controller
      - name: lifecycle-controllers-deployer
      - name: metrics-server-operator
      - name: vmruntime-vmruntime-manager-role
      - name: capi-aggregated-manager-role
      - name: ^capi-manager-role-[0-9].[0-9]+.[0-9]+$
        regexMatch: true
      - name: istio-reader-clusterrole-managed
      - name: mdp-controller
      - name: system:cloud-controller-manager