Remove unused node resource group config

Author: wenxuan0923

pkg/config/config.go

@@ -87,12 +87,11 @@ type BootstrapTokenConfig struct {
 
 // TargetClusterConfig holds configuration for the target AKS cluster the ARC machine will connect to.
 type TargetClusterConfig struct {
-	ResourceID        string `json:"resourceId"` // Full resource ID of the target AKS cluster
-	Location          string `json:"location"`   // Azure region of the cluster (e.g., "eastus", "westus2")
-	Name              string // will be populated from ResourceID
-	ResourceGroup     string // will be populated from ResourceID
-	SubscriptionID    string // will be populated from ResourceID
-	NodeResourceGroup string // reserved for explicit AKS node resource group data; not derived from ResourceID
+	ResourceID     string `json:"resourceId"` // Full resource ID of the target AKS cluster
+	Location       string `json:"location"`   // Azure region of the cluster (e.g., "eastus", "westus2")
+	Name           string // will be populated from ResourceID
+	ResourceGroup  string // will be populated from ResourceID
+	SubscriptionID string // will be populated from ResourceID
 }
 
 // ArcConfig holds Azure Arc machine configuration for registering the machine with Azure Arc.

pkg/config/config_test.go

@@ -1246,9 +1246,6 @@ func TestPopulateTargetClusterInfoFromConfig(t *testing.T) {
 			if config.Azure.SubscriptionID != expected.SubscriptionID {
 				t.Errorf("Expected Azure SubscriptionID %s, got %s", expected.SubscriptionID, config.Azure.SubscriptionID)
 			}
-			if config.Azure.TargetCluster.NodeResourceGroup != "" {
-				t.Errorf("Expected NodeResourceGroup to remain empty, got %s", config.Azure.TargetCluster.NodeResourceGroup)
-			}
 			if config.Azure.TargetCluster.Location != expected.Location {
 				t.Errorf("Expected Location %s, got %s", expected.Location, config.Azure.TargetCluster.Location)
 			}