google_dns_record_set don't update resource from single A record to WRR

[Demacr]

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Terraform Version

# tf version
Terraform v1.2.3
on darwin_amd64
+ provider registry.terraform.io/hashicorp/external v2.2.2
+ provider registry.terraform.io/hashicorp/google v4.25.0
+ provider registry.terraform.io/hashicorp/google-beta v4.25.0
+ provider registry.terraform.io/hashicorp/helm v2.6.0
+ provider registry.terraform.io/hashicorp/kubernetes v2.12.1
+ provider registry.terraform.io/hashicorp/null v3.1.1
+ provider registry.terraform.io/hashicorp/random v3.3.2

Your version of Terraform is out of date! The latest version
is 1.2.8. You can update by downloading from https://www.terraform.io/downloads.html

Affected Resource(s)

google_dns_record_set

Terraform Configuration Files

Before:

resource "google_dns_record_set" "domain" {
  for_each = var.domains

  name = "some.domain.tld"
  type = "A"
  ttl  = 300
  provider = google-beta.dns

  managed_zone = data.google_dns_managed_zone.zone.name

  rrdatas = ["1.2.3.4"]
}

After:

resource "google_dns_record_set" "domain" {
  for_each = var.domains

  name = "some.domain.tld"
  type = "A"
  ttl  = 300
  provider = google-beta.dns

  managed_zone = data.google_dns_managed_zone.zone.name

  routing_policy {
    wrr {
      rrdatas = ["1.2.3.4"]
      weight  = 1000
    }
    wrr {
      rrdatas = [google_compute_global_address.bg.address]
      weight  = 0
    }
  }
}

Debug Output

Panic Output

Expected Behavior

It should update or recreate object without rrdata and with routing_policy block

Actual Behavior

Before applying I had this resource with single rrdata, without routing_policy with IP = 1.2.3.4.

At plan it shows only adding routing_policy block:

  # module.project.google_dns_record_set.domain["domain"] has changed
  ~ resource "google_dns_record_set" "domain" {
        id           = "XXXX/A"
        name         = "domain.some.domain.tld."
        # (5 unchanged attributes hidden)

      + routing_policy {

          + wrr {
              + rrdatas = [
                  + "1.2.3.4",
                ]
              + weight  = 1000
            }
          + wrr {
              + rrdatas = [
                  + "5.6.7.8",
                ]
              + weight  = 0
            }
        }
    }

but doesn't delete rrdata, which causes error at applying:

Error: Error changing DNS RecordSet: googleapi: Error 400: The resource record set 'entity.change.additions[0]' is only permitted to have one record because it is of type 'A'., invalidRecordCount
│
│   with module.project.google_dns_record_set.domain["domain"],
│   on ../modules/project/main.tf line 544, in resource "google_dns_record_set" "domain":
│  544: resource "google_dns_record_set" "domain" {

Steps to Reproduce

1. terraform apply

Important Factoids

References

• #0000

[edwardmedia]

@Demacr you reported this issue happened when you tried to update the resource. Are you able to manually delete the resource and recreate it? The error is from api and it seems the config is blocked by api. Can you share the debug log as well?

googleapi: Error 400: The resource record set 'entity.change.additions[0]' is only permitted to have one record because it is of type 'A'., invalidRecordCount

[Demacr]

@edwardmedia thank you for response. Yes, updated it manually by web console. So I think I could did it through recreating. Okay, I'll send debug logs a little bit later.

[edwardmedia]

@Demacr are you able to get the debug log? Or is it still an issue?

[Demacr]

@edwardmedia I've checked again and I've seen that appears changing of rrdatas block:

      ~ rrdatas      = [
          - "1.2.3.4",
        ]
        # (4 unchanged attributes hidden)

      + routing_policy {

          + wrr {
              + rrdatas = [
                  + "1.2.3.4",
                ]
              + weight  = 1000
            }
          + wrr {
              + rrdatas = [
                  + "5.6.7.8",
                ]
              + weight  = 0
            }
        }

Seems to be you or someone else fixed this.

[Demacr]

Possibly it is fixed in #11872 or #12157, because I updated provider 4.25 -> 4.31

[edwardmedia]

Cool. Thanks for the update @Demacr Closing this then

[github-actions]

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