google_compute_global_forwarding_rule create fails, if targeting PSC and using labels

[wiktorn]

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Terraform Version & Provider Version(s)

$ terraform version
Terraform v1.10.2
on linux_amd64

• provider registry.terraform.io/hashicorp/google v6.14.0
• provider registry.terraform.io/hashicorp/google-beta v6.14.0

Affected Resource(s)

google_compute_global_forwarding_rule

Terraform Configuration

resource "google_compute_global_address" "default" {
  project       = var.project_id
  name          = "global-psconnect-ip"
  address_type  = "INTERNAL"
  purpose       = "PRIVATE_SERVICE_CONNECT"
  network       = var.vpc.self_link
  address       = "100.100.100.106"
}

resource "google_compute_global_forwarding_rule" "default" {
  project       = var.project_id
  name          = "globalrule"
  target        = "all-apis"
  network       = var.vpc.self_link
  ip_address    = google_compute_global_address.default.id
  load_balancing_scheme = ""
  labels = {
    foo = "bar"
  }
}

Debug Output

https://gist.github.com/wiktorn/9a006c00387c2a831b15440910cd1d4f

Expected Behavior

No response

Actual Behavior

google_compute_global_forwarding_rule.default: Creating...
╷
│ Error: Error creating GlobalForwardingRule: googleapi: Error 400: Invalid value for field 'resource.labels': ''. Invalid field set in Private Service Connect Forwarding Rule. This field should not be set., invalid
│ 
│   with google_compute_global_forwarding_rule.default,
│   on main.tf line 10, in resource "google_compute_global_forwarding_rule" "default":
│   10: resource "google_compute_global_forwarding_rule" "default" {
│ 
╵

Steps to reproduce

1. terraform apply

Important Factoids

No response

References

Similar issue was fixed for google_compute_forwarding_rule in #18984 (see also #17334).

For global forwarding rule, additional conditions needs to be added to accomodate for Global APIs - all-apis and vpc-sc targets