google_compute_network_endpoint_group datasource is returning error if the NEG doesn't exist

[than-pet]

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Terraform Version

Terraform v1.7.5
on darwin_arm64

• provider registry.terraform.io/hashicorp/google v5.0.0

Affected Resource(s)

datasource google_compute_network_endpoint_group

Terraform Configuration

data "google_compute_network_endpoint_group" "this" {
  name = "not-existing-neg"
  zone = "europe-west2-a"
}

output "network_endpoint_group" {
  value = data.google_compute_network_endpoint_group.this
}

Debug Output

Planning failed. Terraform encountered an error while generating this plan.

╷
│ Error: projects/my-project/zones/europe-west2-a/networkEndpointGroups/not-existing-neg not found
│
│ with data.google_compute_network_endpoint_group.this,
│ on test.tf line 20, in data "google_compute_network_endpoint_group" "this":
│ 20: data "google_compute_network_endpoint_group" "this" {
│

Expected Behavior

Return an object with null values if the NEG doesn't exist

Changes to Outputs:
  + network_endpoint_group = {
      + default_port          = null
      + description           = null
      + id                    = null
      + name                  = null
      + network               = null
      + network_endpoint_type = null
      + project               = null
      + self_link             = null
      + size                  = null
      + subnetwork            = null
      + zone                  = null
    }

That was the behavior before v5.0.0 (tested with v4.84.0)

Actual Behavior

Plan fails if the NEG is not found in the google project after v5.0.0+

Steps to reproduce

1. use a NEG name that doesn't exist
2. terraform apply

Important Factoids

No response

References

No response

b/337926216

[ggtisc]

Confirmed scenario.

It is possible to create the resource with the shared terraform configuration, but only with version 4.84.0, for now it is not available for the current version. This could be an enhancement for the future.

[BBBmau]

This change is intentional, see the upgrade guide here.