cloud-foundation-fabric/examples/data-solutions/gcs-to-bq-with-least-privileges/main.tf

# Copyright 2022 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
#
#     https://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.

locals {
  iam = {
    # GCS roles
    "roles/storage.objectAdmin" = [
      module.service-account-df.iam_email,
      module.service-account-landing.iam_email
    ],
    "roles/storage.objectViewer" = [
      module.service-account-orch.iam_email,
    ],
    # BigQuery roles
    "roles/bigquery.admin" = concat([
      module.service-account-orch.iam_email,
      ], var.data_eng_principals
    )
    "roles/bigquery.dataEditor" = [
      module.service-account-df.iam_email,
      module.service-account-bq.iam_email
    ]
    "roles/bigquery.dataViewer" = [
      module.service-account-bq.iam_email,
      module.service-account-orch.iam_email
    ]
    "roles/bigquery.jobUser" = [
      module.service-account-df.iam_email,
      module.service-account-bq.iam_email
    ]
    "roles/bigquery.user" = [
      module.service-account-bq.iam_email,
      module.service-account-df.iam_email
    ]
    # common roles
    "roles/logging.logWriter" = [
      module.service-account-bq.iam_email,
      module.service-account-landing.iam_email,
      module.service-account-orch.iam_email,
    ]
    "roles/monitoring.metricWriter" = [
      module.service-account-bq.iam_email,
      module.service-account-landing.iam_email,
      module.service-account-orch.iam_email,
    ]
    "roles/iam.serviceAccountUser" = [
      module.service-account-orch.iam_email,
    ]
    "roles/iam.serviceAccountTokenCreator" = concat(
      var.data_eng_principals
    )
    # Dataflow roles
    "roles/dataflow.admin" = concat(
      [module.service-account-orch.iam_email],
      var.data_eng_principals
    )
    "roles/dataflow.worker" = [
      module.service-account-df.iam_email,
    ]
    "roles/dataflow.developer" = var.data_eng_principals
    "roles/compute.viewer"     = var.data_eng_principals
    # network roles
    "roles/compute.networkUser" = [
      module.service-account-df.iam_email,
      "serviceAccount:${module.project.service_accounts.robots.dataflow}"
    ]
  }
}

module "project" {
  source          = "../../../modules/project"
  name            = var.project_id
  parent          = try(var.project_create.parent, null)
  billing_account = try(var.project_create.billing_account_id, null)
  project_create  = var.project_create != null
  prefix          = var.project_create == null ? null : var.prefix
  services = [
    "bigquery.googleapis.com",
    "bigquerystorage.googleapis.com",
    "bigqueryreservation.googleapis.com",
    "cloudkms.googleapis.com",
    "compute.googleapis.com",
    "dataflow.googleapis.com",
    "servicenetworking.googleapis.com",
    "storage.googleapis.com",
    "storage-component.googleapis.com",
  ]

  # additive IAM bindings avoid disrupting bindings in existing project
  iam          = var.project_create != null ? local.iam : {}
  iam_additive = var.project_create == null ? local.iam : {}
  service_config = {
    disable_on_destroy = false, disable_dependent_services = false
  }
}