grafana_frontend_o11y_app.allowed_origins causes perpetual diff due to ordering

[eserte]

Terraform Version

v1.11.4

Terraform Grafana Provider Version

v4.28.1

Grafana Version

Grafana Cloud

Affected Resource(s)

grafana_frontend_o11y_app (resource)

Terraform Configuration Files

resource "grafana_frontend_o11y_app" "example" {
  name     = "example-app"
  stack_id = 1234

  allowed_origins = [
    "https://app.example.com",
    "https://internal.example.com",
    "http://localhost:4200",
  ]
}

Expected Behavior

On a repeated terraform plan/apply after a previous terraform apply there should be no diffs.

Actual Behavior

Terraform shows a diff only due to reordering:

~ allowed_origins = [
-  "http://localhost:4200",
   "https://app.example.com",
   "https://internal.example.com",
+  "http://localhost:4200",
]

So the order returned after apply appears to be lexically sorted (e.g. "http://..." before "https://...")

Possible workaround: Sorting the list in configuration avoids the diff:

allowed_origins = sort([
  "https://app.example.com",
  "https://internal.example.com",
  "http://localhost:4200",
])

Steps to Reproduce

No response

Important Factoids

No response

References

No response