google_storage_transfer_job shows permanently diff when transfer_options set all false explicitly.

[yudoufu]

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Terraform Version

Terraform v1.1.9
on darwin_amd64
+ provider registry.terraform.io/hashicorp/google v4.20.0
+ provider registry.terraform.io/hashicorp/google-beta v4.20.0
+ provider registry.terraform.io/hashicorp/random v3.1.3

Affected Resource(s)

• google_storage_transfer_job

Terraform Configuration Files

resource "google_storage_transfer_job" "gcs_bucket_backup" {
  for_each = local.buckets

  project     = var.project
  description = "Daliy backup of ${each.value} GCS bucket"

  transfer_spec {
    gcs_data_source {
      bucket_name = each.value
    }

    gcs_data_sink {
      bucket_name = google_storage_bucket.backup[each.key].name
    }

    transfer_options {
      overwrite_objects_already_existing_in_sink = false
      delete_objects_unique_in_sink              = false
      delete_objects_from_source_after_transfer  = false
    }
  }

  schedule {
    schedule_start_date {
      year  = 2021
      month = 5
      day   = 27
    }

    start_time_of_day {
      hours   = 16
      minutes = 0
      seconds = 0
      nanos   = 0
    }
  }
}

Debug Output

After succeeded apply above resource, terraform plan shows a diff permanently.

  ~ resource "google_storage_transfer_job" "gcs_bucket_backup" {
        id                     = "knowledgework-dev/9563522446610641938"
        name                   = "transferJobs/9563522446610641938"
        # (5 unchanged attributes hidden)


      ~ transfer_spec {



          + transfer_options {
              + delete_objects_from_source_after_transfer  = false
              + delete_objects_unique_in_sink              = false
              + overwrite_objects_already_existing_in_sink = false
            }
            # (2 unchanged blocks hidden)
        }
        # (1 unchanged block hidden)
    }

Panic Output

None

Expected Behavior

terraform plan shouldn't show the diff of transfer_options after applied.

Actual Behavior

terraform plan always shows diff about transfer_options

Steps to Reproduce

1. terraform apply

Important Factoids

None

References

• The PR https://github.com/GoogleCloudPlatform/magic-modules/pull/5652/files#diff-a410bece247a85ea51f91b459977a74ab168e015c099eaf8df5ca67bad271874R985-R987 was changed the behavior of transfer_options.

[yudoufu]

I'll try to create the PR of this fix.

[github-actions]

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