google-data-transfer-service.tf

# ------- artifacts --------
resource "google_storage_transfer_job" "artifacts-<your source google project id>-backup" {
  description = "artifacts-<your source google project id> backup job"
  project     = local.project

  transfer_spec {

    transfer_options {
      delete_objects_unique_in_sink = true
    }

    gcs_data_source {
      bucket_name = "artifacts-<your source google project id>"
    }

    gcs_data_sink {
      bucket_name = google_storage_bucket.artifacts-<your source google project id>-backup.name
    }
  }

  schedule {
    schedule_start_date {
      year  = 2020
      month = 9
      day   = 1
    }
    schedule_end_date {
      year  = 2100
      month = 12
      day   = 31
    }
    start_time_of_day {
      hours   = 21
      minutes = 30
      seconds = 0
      nanos   = 0
    }
  }

  depends_on = [google_storage_bucket.artifacts-<your source google project id>-backup]
}