azurerm_kubernetes_cluster - maintenance_window_auto_upgrade is not refreshing

[clarkperkins]

Is there an existing issue for this?

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Terraform Version

1.7.1

AzureRM Provider Version

3.111.0

Affected Resource(s)/Data Source(s)

azurerm_kubernetes_cluster

Terraform Configuration Files

resource "azurerm_kubernetes_cluster" "cluster" {
  name = var.cluster_name

  resource_group_name = var.resource_group.name
  location            = var.resource_group.location

  sku_tier = "Standard"

  maintenance_window_auto_upgrade {
    frequency   = "Weekly"
    interval    = 1
    duration    = 4
    day_of_week = "Sunday"
    start_time  = "07:00"
    utc_offset  = "+00:00"
  }

  maintenance_window_node_os {
    frequency   = "Weekly"
    interval    = 1
    duration    = 4
    day_of_week = "Sunday"
    start_time  = "07:00"
    utc_offset  = "+00:00"
  }
}

Debug Output/Panic Output

From the terraform plan debug output:

2024-07-31T17:10:37.633-0500 [DEBUG] provider.terraform-provider-azurerm_v3.111.0_x5: AzureRM Response for https://management.azure.com/subscriptions/<sub>/resourceGroups/<rg>/providers/Microsoft.          ContainerService/managedClusters/<cluster>/maintenanceConfigurations/aksManagedAutoUpgradeSchedule?api-version=2023-09-02-preview:
HTTP/2.0 404 Not Found^M
Content-Length: 424^M
Cache-Control: no-cache^M
Content-Type: application/json^M
Date: Wed, 31 Jul 2024 22:10:36 GMT^M
Expires: -1^M
Pragma: no-cache^M
Strict-Transport-Security: max-age=31536000; includeSubDomains^M
X-Cache: CONFIG_NOCACHE^M
X-Content-Type-Options: nosniff^M
X-Ms-Correlation-Request-Id: <redacted>^M
X-Ms-Ratelimit-Remaining-Subscription-Global-Reads: 3747^M
X-Ms-Ratelimit-Remaining-Subscription-Reads: 247^M
X-Ms-Request-Id: <redacted>^M
X-Ms-Routing-Request-Id: EASTUS2:<redacted>^M
X-Msedge-Ref: Ref A: <redacted> Ref B: <redacted> Ref C: <redacted>^M
^M
{
  "code": "NotFound",
  "details": [
   {
    "code": "Unspecified",
    "message": "rpc error: code = NotFound desc = Maintenance configuration not found"
   }
  ],
  "message": "Could not find the maintenance configuration: aksManagedAutoUpgradeSchedule in subscription: <sub>, resourceGroup: <rg>, resourceName: <cluster>.",
  "subcode": "GetMaintenanceConfiguration_NotFound"
 }: timestamp=2024-07-31T17:10:37.632-0500

Expected Behaviour

A terraform apply should replace maintenance window configurations that were manually removed.

Actual Behaviour

Terraform is not replacing removed maintenance window configurations.

Steps to Reproduce

1. terraform apply
2. Manually remove the maintenance_window_auto_upgrade configuration in the azure portal
3. terraform plan shows no changes

Important Factoids

Azure eastus2

References

No response

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