google_vertex_ai_endpoint_iam_policy doesn't expect the argument "region"

[zinizhu]

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Terraform Version & Provider Version(s)

Terraform: v1.5.7

• provider registry.terraform.io/hashicorp/google v6.17.0
• provider registry.terraform.io/hashicorp/google-beta v6.17.0

Affected Resource(s)

google_vertex_ai_endpoint_iam_policy

Terraform Configuration

First we tried:

resource "google_vertex_ai_endpoint_iam_policy" "policy" {
  provider = google-beta
  project  = google_vertex_ai_endpoint.endpoint.project

  location    = google_vertex_ai_endpoint.endpoint.location
  endpoint    = google_vertex_ai_endpoint.endpoint.name
  policy_data = data.google_iam_policy.endpoint_caller.policy_data
}

And this gave us:

╷
│ Error: Cannot determine region: set in this resource, or set provider-level 'region' or 'zone'.
│ 
│   with module.vertex_endpoints["my-model"].google_vertex_ai_endpoint_iam_policy.policy,
│   on .terraform/modules/vertex_endpoints/vertexai/endpoint_psc/main.tf line 23, in resource "google_vertex_ai_endpoint_iam_policy" "policy":
│   23: resource "google_vertex_ai_endpoint_iam_policy" "policy" {
│ 
╵

Then, we tried

1. replace location with region
2. set both location and region with the same value

Both gave us:

│ Error: Unsupported argument
│ 
│   on xxxx/endpoint_psc/main.tf line 29, in resource "google_vertex_ai_endpoint_iam_policy" "policy":
│   29:   region      = google_vertex_ai_endpoint.endpoint.location
│ 
│ An argument named "region" is not expected here.
╵

Debug Output

No response

Expected Behavior

The resource accepts either location or region as the input.

Actual Behavior

TF keeps complaining no matter what region/location I specify.

Steps to reproduce

See above.

Important Factoids

No response

References

No response

b/392108635

[ggtisc]

Confirmed issue!

terraform registry specifies the region argument is possible to be set (link here), but even trying to declare it before creation shows the following message:

Unexpected attribute: An attribute named "region" is not expected here