# 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
apiVersion: iam.cnrm.cloud.google.com/v1beta1
kind: IAMServiceAccount
metadata:
  name: hierarchy-sa
  namespace: config-control # kpt-set: ${management-namespace}
  annotations:
    cnrm.cloud.google.com/project-id: management-project-id # kpt-set: ${management-project-id}
    cnrm.cloud.google.com/ignore-clusterless: "true"
spec:
  displayName: hierarchy-sa
---
# Grant GCP role Folder Admin to GCP SA
apiVersion: iam.cnrm.cloud.google.com/v1beta1
kind: IAMPolicyMember
metadata:
  name: hierarchy-sa-folderadmin-permissions
  namespace: config-control # kpt-set: ${management-namespace}
  annotations:
    cnrm.cloud.google.com/project-id: management-project-id # kpt-set: ${management-project-id}
    cnrm.cloud.google.com/ignore-clusterless: "true"
spec:
  resourceRef:
    apiVersion: resourcemanager.cnrm.cloud.google.com/v1beta1
    kind: Folder
    external: "123456789012" # kpt-set: ${lz-folder-id}
  role: roles/resourcemanager.folderAdmin
  member: "serviceAccount:hierarchy-sa@management-project-id.iam.gserviceaccount.com" # kpt-set: serviceAccount:hierarchy-sa@${management-project-id}.iam.gserviceaccount.com
---
# K8S SA
apiVersion: iam.cnrm.cloud.google.com/v1beta1
kind: IAMPartialPolicy
metadata:
  name: hierarchy-sa-workload-identity-binding
  namespace: config-control # kpt-set: ${management-namespace}
  annotations:
    cnrm.cloud.google.com/project-id: management-project-id # kpt-set: ${management-project-id}
    cnrm.cloud.google.com/ignore-clusterless: "true"
spec:
  resourceRef:
    name: hierarchy-sa
    apiVersion: iam.cnrm.cloud.google.com/v1beta1
    kind: IAMServiceAccount
  bindings:
    - role: roles/iam.workloadIdentityUser
      members:
        - member: serviceAccount:management-project-id.svc.id.goog[cnrm-system/cnrm-controller-manager-hierarchy] # kpt-set: serviceAccount:${management-project-id}.svc.id.goog[cnrm-system/cnrm-controller-manager-hierarchy]
---
# K8S namespace
apiVersion: v1
kind: Namespace
metadata:
  name: hierarchy
  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: hierarchy
  annotations:
    cnrm.cloud.google.com/ignore-clusterless: "true"
spec:
  googleServiceAccount: hierarchy-sa@management-project-id.iam.gserviceaccount.com # kpt-set: hierarchy-sa@${management-project-id}.iam.gserviceaccount.com
---
# Grant viewer role on the hierarchy namespace to projects K8S SA
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: allow-hierarchy-resource-reference-from-projects
  namespace: hierarchy
  annotations:
    cnrm.cloud.google.com/ignore-clusterless: "true"
roleRef:
  name: cnrm-viewer
  kind: ClusterRole
  apiGroup: rbac.authorization.k8s.io
subjects:
  - name: cnrm-controller-manager-projects
    namespace: cnrm-system
    kind: ServiceAccount
---
# Grant viewer role on the hierarchy namespace to policies K8S SA
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: allow-hierarchy-resource-reference-from-policies
  namespace: hierarchy
  annotations:
    cnrm.cloud.google.com/ignore-clusterless: "true"
roleRef:
  name: cnrm-viewer
  kind: ClusterRole
  apiGroup: rbac.authorization.k8s.io
subjects:
  - name: cnrm-controller-manager-policies
    namespace: cnrm-system
    kind: ServiceAccount
---
# IAM Permissions to create folder sinks
# Grant viewer role on the hierarchy namespace to config-control K8S SA
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: allow-hierarchy-resource-reference-from-config-control
  namespace: hierarchy
  annotations:
    cnrm.cloud.google.com/ignore-clusterless: "true"
roleRef:
  name: cnrm-viewer
  kind: ClusterRole
  apiGroup: rbac.authorization.k8s.io
subjects:
  - name: cnrm-controller-manager-config-control
    namespace: cnrm-system
    kind: ServiceAccount
---
# Grant viewer role on the hierarchy namespace to logging K8S SA
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: allow-folders-resource-reference-to-logging
  namespace: hierarchy
  annotations:
    cnrm.cloud.google.com/ignore-clusterless: "true"
roleRef:
  name: cnrm-viewer
  kind: ClusterRole
  apiGroup: rbac.authorization.k8s.io
subjects:
  - name: cnrm-controller-manager-logging
    namespace: cnrm-system
    kind: ServiceAccount
