solutions/client-setup/namespaces/client-name-networking.yaml

# Copyright 2021 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#########
# GCP SA
# AC-1 - Implementation of access control
# AC-3, AC-3(7), AC-16(2) - This service account possesses minimal privileges(permissions) and is restricted to performing only the necessary operations for resources within the designated namespace. The service account is associated with the current namespace and is assigned minimal permissions to create resources in this namespace only.
apiVersion: iam.cnrm.cloud.google.com/v1beta1
kind: IAMServiceAccount
metadata:
  name: client-name-networking-sa # kpt-set: ${client-name}-networking-sa
  namespace: client-name-config-control # kpt-set: ${client-name}-${management-namespace}
  annotations:
    cnrm.cloud.google.com/project-id: client-management-project-id # kpt-set: ${client-management-project-id}
    cnrm.cloud.google.com/ignore-clusterless: "true"
    config.kubernetes.io/depends-on: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/client-management-project-id # kpt-set: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/${client-management-project-id}
spec:
  # AC-3, AC-3(7), AC-16(2)
  displayName: client-name-networking-sa # kpt-set: ${client-name}-networking-sa
---
# Grant GCP role Network Admin to GCP SA
apiVersion: iam.cnrm.cloud.google.com/v1beta1
kind: IAMPolicyMember
metadata:
  name: client-name-networking-sa-networkadmin-permissions # kpt-set: ${client-name}-networking-sa-networkadmin-permissions
  namespace: hierarchy
  annotations:
    cnrm.cloud.google.com/ignore-clusterless: "true"
    config.kubernetes.io/depends-on: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/client-management-project-id # kpt-set: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/${client-management-project-id}
spec:
  resourceRef:
    apiVersion: resourcemanager.cnrm.cloud.google.com/v1beta1
    kind: Folder
    name: clients.client-name # kpt-set: clients.${client-name}
  # AC-1, AC-3, AC-3(7), AC-16(2)
  role: roles/compute.networkAdmin
  member: "serviceAccount:client-name-networking-sa@client-management-project-id.iam.gserviceaccount.com" # kpt-set: serviceAccount:${client-name}-networking-sa@${client-management-project-id}.iam.gserviceaccount.com
---
# Grant GCP role Security Admin to GCP SA
apiVersion: iam.cnrm.cloud.google.com/v1beta1
kind: IAMPolicyMember
metadata:
  name: client-name-networking-sa-security-permissions # kpt-set: ${client-name}-networking-sa-security-permissions
  namespace: hierarchy
  annotations:
    cnrm.cloud.google.com/ignore-clusterless: "true"
    config.kubernetes.io/depends-on: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/client-management-project-id # kpt-set: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/${client-management-project-id}
spec:
  resourceRef:
    apiVersion: resourcemanager.cnrm.cloud.google.com/v1beta1
    kind: Folder
    name: clients.client-name # kpt-set: clients.${client-name}
  # AC-1, AC-3, AC-3(7), AC-16(2)
  role: roles/compute.securityAdmin
  member: "serviceAccount:client-name-networking-sa@client-management-project-id.iam.gserviceaccount.com" # kpt-set: serviceAccount:${client-name}-networking-sa@${client-management-project-id}.iam.gserviceaccount.com
---
# Grant GCP role DNS Admin to GCP SA
apiVersion: iam.cnrm.cloud.google.com/v1beta1
kind: IAMPolicyMember
metadata:
  name: client-name-networking-sa-dns-permissions # kpt-set: ${client-name}-networking-sa-dns-permissions
  namespace: hierarchy
  annotations:
    cnrm.cloud.google.com/ignore-clusterless: "true"
    config.kubernetes.io/depends-on: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/client-management-project-id # kpt-set: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/${client-management-project-id}
spec:
  resourceRef:
    apiVersion: resourcemanager.cnrm.cloud.google.com/v1beta1
    kind: Folder
    name: clients.client-name # kpt-set: clients.${client-name}
  # AC-1, AC-3, AC-3(7), AC-16(2)
  role: roles/dns.admin
  member: "serviceAccount:client-name-networking-sa@client-management-project-id.iam.gserviceaccount.com" # kpt-set: serviceAccount:${client-name}-networking-sa@${client-management-project-id}.iam.gserviceaccount.com
---
# Grant GCP role Tier2 DNS Record Admin to GCP SA on Core DNS Project
apiVersion: iam.cnrm.cloud.google.com/v1beta1
kind: IAMPolicyMember
metadata:
  name: client-name-networking-sa-tier2-dns-record-admin-core-dns-project-id-permissions # kpt-set: ${client-name}-networking-sa-tier2-dns-record-admin-${core-dns-project-id}-permissions
  namespace: projects
  annotations:
    cnrm.cloud.google.com/ignore-clusterless: "true"
    config.kubernetes.io/depends-on: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/client-management-project-id # kpt-set: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/${client-management-project-id}
spec:
  resourceRef:
    apiVersion: resourcemanager.cnrm.cloud.google.com/v1beta1
    kind: Project
    name: core-dns-project-id # kpt-set: ${core-dns-project-id}
  # AC-1, AC-3, AC-3(7), AC-16(2)
  role: organizations/org-id/roles/tier2.dnsrecord.admin # kpt-set: organizations/${org-id}/roles/tier2.dnsrecord.admin
  member: "serviceAccount:client-name-networking-sa@client-management-project-id.iam.gserviceaccount.com" # kpt-set: serviceAccount:${client-name}-networking-sa@${client-management-project-id}.iam.gserviceaccount.com
---
# Grant GCP role ACM Admin to GCP SA
apiVersion: iam.cnrm.cloud.google.com/v1beta1
kind: IAMPolicyMember
metadata:
  name: client-name-networking-sa-service-control-permissions # kpt-set: ${client-name}-networking-sa-service-control-permissions
  namespace: hierarchy
  annotations:
    cnrm.cloud.google.com/ignore-clusterless: "true"
    config.kubernetes.io/depends-on: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/client-management-project-id # kpt-set: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/${client-management-project-id}
spec:
  resourceRef:
    apiVersion: resourcemanager.cnrm.cloud.google.com/v1beta1
    kind: Folder
    name: clients.client-name # kpt-set: clients.${client-name}
  # AC-1, AC-3, AC-3(7), AC-16(2)
  role: roles/accesscontextmanager.policyAdmin
  member: "serviceAccount:client-name-networking-sa@client-management-project-id.iam.gserviceaccount.com" # kpt-set: serviceAccount:${client-name}-networking-sa@${client-management-project-id}.iam.gserviceaccount.com
---
# Grant GCP role Shared VPC Admin to GCP SA
# needs to be set at the org level because of org policy "constraints/compute.restrictXpnProjectLienRemoval"
apiVersion: iam.cnrm.cloud.google.com/v1beta1
kind: IAMPolicyMember
metadata:
  name: client-name-networking-sa-xpnadmin-permissions # kpt-set: ${client-name}-networking-sa-xpnadmin-permissions
  namespace: config-control
  annotations:
    cnrm.cloud.google.com/ignore-clusterless: "true"
    config.kubernetes.io/depends-on: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/client-management-project-id # kpt-set: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/${client-management-project-id}
spec:
  resourceRef:
    apiVersion: resourcemanager.cnrm.cloud.google.com/v1beta1
    kind: Organization
    external: "123456789012" # kpt-set: ${org-id}
  # AC-1, AC-3, AC-3(7), AC-16(2)
  role: roles/compute.xpnAdmin
  member: "serviceAccount:client-name-networking-sa@client-management-project-id.iam.gserviceaccount.com" # kpt-set: serviceAccount:${client-name}-networking-sa@${client-management-project-id}.iam.gserviceaccount.com
---
# Grant GCP role Service Directory Editor to GCP SA
apiVersion: iam.cnrm.cloud.google.com/v1beta1
kind: IAMPolicyMember
metadata:
  name: client-name-networking-sa-servicedirectoryeditor-permissions # kpt-set: ${client-name}-networking-sa-servicedirectoryeditor-permissions
  namespace: hierarchy
  annotations:
    cnrm.cloud.google.com/ignore-clusterless: "true"
    config.kubernetes.io/depends-on: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/client-management-project-id # kpt-set: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/${client-management-project-id}
spec:
  resourceRef:
    apiVersion: resourcemanager.cnrm.cloud.google.com/v1beta1
    kind: Folder
    name: clients.client-name # kpt-set: clients.${client-name}
  # AC-1, AC-3, AC-3(7), AC-16(2)
  role: roles/servicedirectory.editor
  member: "serviceAccount:client-name-networking-sa@client-management-project-id.iam.gserviceaccount.com" # kpt-set: serviceAccount:${client-name}-networking-sa@${client-management-project-id}.iam.gserviceaccount.com
---
# Grant GCP role Compute Organization Resource Admin to GCP networking SA for fw policies
apiVersion: iam.cnrm.cloud.google.com/v1beta1
kind: IAMPolicyMember
metadata:
  name: client-name-networking-sa-client-folder-org-resource-admin-permissions # kpt-set: ${client-name}-networking-sa-client-folder-org-resource-admin-permissions
  namespace: hierarchy
  annotations:
    cnrm.cloud.google.com/ignore-clusterless: "true"
    config.kubernetes.io/depends-on: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/client-management-project-id # kpt-set: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/${client-management-project-id}
spec:
  resourceRef:
    apiVersion: resourcemanager.cnrm.cloud.google.com/v1beta1
    kind: Folder
    name: clients.client-name # kpt-set: clients.${client-name}
  # AC-1, AC-3, AC-3(7), AC-16(2)
  role: roles/compute.orgSecurityResourceAdmin
  member: serviceAccount:client-name-networking-sa@client-management-project-id.iam.gserviceaccount.com # kpt-set: serviceAccount:${client-name}-networking-sa@${client-management-project-id}.iam.gserviceaccount.com
---
# Grant GCP role Cloud IDS Admin to GCP SA
apiVersion: iam.cnrm.cloud.google.com/v1beta1
kind: IAMPolicyMember
metadata:
  name: client-name-networking-sa-cloudids-admin-permissions # kpt-set: ${client-name}-networking-sa-cloudids-admin-permissions
  namespace: hierarchy
  annotations:
    cnrm.cloud.google.com/ignore-clusterless: "true"
    config.kubernetes.io/depends-on: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/client-management-project-id # kpt-set: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/${client-management-project-id}
spec:
  resourceRef:
    apiVersion: resourcemanager.cnrm.cloud.google.com/v1beta1
    kind: Folder
    name: clients.client-name # kpt-set: clients.${client-name}
  # AC-1, AC-3, AC-3(7), AC-16(2)
  role: roles/ids.admin
  member: "serviceAccount:client-name-networking-sa@client-management-project-id.iam.gserviceaccount.com" # kpt-set: serviceAccount:${client-name}-networking-sa@${client-management-project-id}.iam.gserviceaccount.com
---
# K8S SA
apiVersion: iam.cnrm.cloud.google.com/v1beta1
kind: IAMPartialPolicy
metadata:
  name: client-name-networking-sa-workload-identity-binding # kpt-set: ${client-name}-networking-sa-workload-identity-binding
  namespace: client-name-config-control # kpt-set: ${client-name}-${management-namespace}
  annotations:
    cnrm.cloud.google.com/ignore-clusterless: "true"
    config.kubernetes.io/depends-on: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/client-management-project-id # kpt-set: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/${client-management-project-id}
spec:
  resourceRef:
    name: client-name-networking-sa # kpt-set: ${client-name}-networking-sa
    apiVersion: iam.cnrm.cloud.google.com/v1beta1
    kind: IAMServiceAccount
  # AC-1, AC-3, AC-3(7), AC-16(2)
  bindings:
    - role: roles/iam.workloadIdentityUser
      members:
        - member: serviceAccount:management-project-id.svc.id.goog[cnrm-system/cnrm-controller-manager-client-name-networking] # kpt-set: serviceAccount:${management-project-id}.svc.id.goog[cnrm-system/cnrm-controller-manager-${client-name}-networking]
---
# K8S namespace
apiVersion: v1
kind: Namespace
metadata:
  name: client-name-networking # kpt-set: ${client-name}-networking
  annotations:
    cnrm.cloud.google.com/ignore-clusterless: "true"
---
# Link GCP SA to K8S namespace
apiVersion: core.cnrm.cloud.google.com/v1beta1
kind: ConfigConnectorContext
metadata:
  name: configconnectorcontext.core.cnrm.cloud.google.com
  namespace: client-name-networking # kpt-set: ${client-name}-networking
  annotations:
    cnrm.cloud.google.com/ignore-clusterless: "true"
    config.kubernetes.io/depends-on: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/client-management-project-id # kpt-set: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/${client-management-project-id}
spec:
  # AC-3, AC-3(7), AC-16(2)
  googleServiceAccount: client-name-networking-sa@client-management-project-id.iam.gserviceaccount.com # kpt-set: ${client-name}-networking-sa@${client-management-project-id}.iam.gserviceaccount.com
---
# Grant viewer role on the projects namespace to networking K8S SA
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: allow-resource-reference-from-networking
  namespace: client-name-projects # kpt-set: ${client-name}-projects
  annotations:
    cnrm.cloud.google.com/ignore-clusterless: "true"
    config.kubernetes.io/depends-on: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/client-management-project-id # kpt-set: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/${client-management-project-id}
roleRef:
  # AC-1, AC-3, AC-3(7), AC-16(2)
  name: cnrm-viewer
  kind: ClusterRole
  apiGroup: rbac.authorization.k8s.io
subjects:
  - name: cnrm-controller-manager-client-name-networking # kpt-set: cnrm-controller-manager-${client-name}-networking
    namespace: cnrm-system
    kind: ServiceAccount
---
# Grant viewer role on the networking namespace to client-name-networking K8S SA
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: allow-resource-reference-from-client-name-networking # kpt-set: allow-resource-reference-from-${client-name}-networking
  namespace: networking
  annotations:
    cnrm.cloud.google.com/ignore-clusterless: "true"
    config.kubernetes.io/depends-on: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/client-management-project-id # kpt-set: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/${client-management-project-id}
roleRef:
  # AC-1, AC-3, AC-3(7), AC-16(2)
  name: cnrm-viewer
  kind: ClusterRole
  apiGroup: rbac.authorization.k8s.io
subjects:
  - name: cnrm-controller-manager-client-name-networking # kpt-set: cnrm-controller-manager-${client-name}-networking
    namespace: cnrm-system
    kind: ServiceAccount
---
# Grant viewer role on the client-name-hierarchy namespace to client-name-networking K8S SA
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: allow-client-name-hierarchy-resource-reference-from-client-name-networking # kpt-set: allow-${client-name}-hierarchy-resource-reference-from-${client-name}-networking
  namespace: client-name-hierarchy # kpt-set: ${client-name}-hierarchy
  annotations:
    cnrm.cloud.google.com/ignore-clusterless: "true"
    config.kubernetes.io/depends-on: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/client-management-project-id # kpt-set: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/${client-management-project-id}
roleRef:
  # AC-1, AC-3, AC-3(7), AC-16(2)
  name: cnrm-viewer
  kind: ClusterRole
  apiGroup: rbac.authorization.k8s.io
subjects:
  - name: cnrm-controller-manager-client-name-networking # kpt-set: cnrm-controller-manager-${client-name}-networking
    namespace: cnrm-system
    kind: ServiceAccount
---
# Grant viewer role on the hierarchy namespace to client-name-networking K8S SA
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: allow-hierarchy-resource-reference-from-client-name-networking # kpt-set: allow-hierarchy-resource-reference-from-${client-name}-networking
  namespace: hierarchy
  annotations:
    cnrm.cloud.google.com/ignore-clusterless: "true"
    config.kubernetes.io/depends-on: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/client-management-project-id # kpt-set: resourcemanager.cnrm.cloud.google.com/namespaces/projects/Project/${client-management-project-id}
roleRef:
  # AC-1, AC-3, AC-3(7), AC-16(2)
  name: cnrm-viewer
  kind: ClusterRole
  apiGroup: rbac.authorization.k8s.io
subjects:
  - name: cnrm-controller-manager-client-name-networking # kpt-set: cnrm-controller-manager-${client-name}-networking
    namespace: cnrm-system
    kind: ServiceAccount