tutorials/private-targets-gke/terraform-config/cloudbuild.tf

/**
 * 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.
 */

resource "google_project_service" "servicenetworking" {
  service            = "servicenetworking.googleapis.com"
  disable_on_destroy = false
}

resource "google_compute_global_address" "worker_range" {
  name          = "cloudbuild-worker-pool-range"
  purpose       = "VPC_PEERING"
  address_type  = "INTERNAL"
  network       = google_compute_network.network_gcb.id
  prefix_length = var.private_pool_prefix
  address       = var.private_pool_address
}

resource "google_service_networking_connection" "worker_pool_connection" {
  network                 = google_compute_network.network_gcb.id
  service                 = "servicenetworking.googleapis.com"
  reserved_peering_ranges = [google_compute_global_address.worker_range.name]
  depends_on              = [google_project_service.servicenetworking]
}

resource "google_cloudbuild_worker_pool" "cloudbuild_private_pool" {

  provider = google-beta

  name     = "private-pool"
  location = var.region
  worker_config {
    disk_size_gb   = 100
    machine_type   = "e2-medium"
    no_external_ip = false
  }
  network_config {
    peered_network = google_compute_network.network_gcb.id
  }
  depends_on = [google_service_networking_connection.worker_pool_connection]
}

resource "null_resource" "configure_peering_gcb" {

  depends_on = [
    google_service_networking_connection.worker_pool_connection
  ]

  provisioner "local-exec" {
    interpreter = ["/bin/bash", "-c"]
    command     = "gcloud compute networks peerings update servicenetworking-googleapis-com --network=$NETWORK --export-custom-routes"
    environment = {
      NETWORK = google_compute_network.network_gcb.name
    }
  }
}