azurerm_kubernetes_cluster: support for the backend_pool_type pro…

…perty (#27596)
hashicorp · Oct 29, 2024 · 6ac4caf · 6ac4caf
1 parent 10ba557
commit 6ac4caf
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Showing 3 changed files with 32 additions and 0 deletions.
diff --git a/internal/services/containers/kubernetes_cluster_network_resource_test.go b/internal/services/containers/kubernetes_cluster_network_resource_test.go
@@ -3020,6 +3020,7 @@ resource "azurerm_kubernetes_cluster" "test" {
     load_balancer_sku = "standard"
     load_balancer_profile {
       outbound_ip_address_ids = [azurerm_public_ip.test.id]
+      backend_pool_type       = "NodeIP"
     }
   }
 }

diff --git a/internal/services/containers/kubernetes_cluster_resource.go b/internal/services/containers/kubernetes_cluster_resource.go
@@ -1072,26 +1072,30 @@ func resourceKubernetesCluster() *pluginsdk.Resource {
 										Default:      0,
 										ValidateFunc: validation.IntBetween(0, 64000),
 									},
+
 									"idle_timeout_in_minutes": {
 										Type:         pluginsdk.TypeInt,
 										Optional:     true,
 										Default:      30,
 										ValidateFunc: validation.IntBetween(4, 100),
 									},
+
 									"managed_outbound_ip_count": {
 										Type:          pluginsdk.TypeInt,
 										Optional:      true,
 										Computed:      true,
 										ValidateFunc:  validation.IntBetween(1, 100),
 										ConflictsWith: []string{"network_profile.0.load_balancer_profile.0.outbound_ip_prefix_ids", "network_profile.0.load_balancer_profile.0.outbound_ip_address_ids"},
 									},
+
 									"managed_outbound_ipv6_count": {
 										Type:          pluginsdk.TypeInt,
 										Optional:      true,
 										Computed:      true,
 										ValidateFunc:  validation.IntBetween(1, 100),
 										ConflictsWith: []string{"network_profile.0.load_balancer_profile.0.outbound_ip_prefix_ids", "network_profile.0.load_balancer_profile.0.outbound_ip_address_ids"},
 									},
+
 									"outbound_ip_prefix_ids": {
 										Type:          pluginsdk.TypeSet,
 										Optional:      true,
@@ -1101,6 +1105,7 @@ func resourceKubernetesCluster() *pluginsdk.Resource {
 											ValidateFunc: azure.ValidateResourceID,
 										},
 									},
+
 									"outbound_ip_address_ids": {
 										Type:          pluginsdk.TypeSet,
 										Optional:      true,
@@ -1110,13 +1115,24 @@ func resourceKubernetesCluster() *pluginsdk.Resource {
 											ValidateFunc: azure.ValidateResourceID,
 										},
 									},
+
 									"effective_outbound_ips": {
 										Type:     pluginsdk.TypeSet,
 										Computed: true,
 										Elem: &pluginsdk.Schema{
 											Type: pluginsdk.TypeString,
 										},
 									},
+
+									"backend_pool_type": {
+										Type:     pluginsdk.TypeString,
+										Optional: true,
+										Default:  string(managedclusters.BackendPoolTypeNodeIPConfiguration),
+										ValidateFunc: validation.StringInSlice([]string{
+											string(managedclusters.BackendPoolTypeNodeIPConfiguration),
+											string(managedclusters.BackendPoolTypeNodeIP),
+										}, false),
+									},
 								},
 							},
 						},
@@ -2039,6 +2055,11 @@ func resourceKubernetesClusterUpdate(d *pluginsdk.ResourceData, meta interface{}
 				loadBalancerProfile.AllocatedOutboundPorts = utils.Int64(int64(allocatedOutboundPorts))
 			}
 
+			if key := "network_profile.0.load_balancer_profile.0.backend_pool_type"; d.HasChange(key) {
+				backendPoolType := d.Get(key).(string)
+				loadBalancerProfile.BackendPoolType = pointer.To(managedclusters.BackendPoolType(backendPoolType))
+			}
+
 			existing.Model.Properties.NetworkProfile.LoadBalancerProfile = &loadBalancerProfile
 		}
 
@@ -3230,6 +3251,10 @@ func expandLoadBalancerProfile(d []interface{}) *managedclusters.ManagedClusterL
 		profile.OutboundIPs = &managedclusters.ManagedClusterLoadBalancerProfileOutboundIPs{PublicIPs: outIps}
 	}
 
+	if backendPoolType, ok := config["backend_pool_type"].(string); ok {
+		profile.BackendPoolType = pointer.To(managedclusters.BackendPoolType(backendPoolType))
+	}
+
 	return profile
 }
 
@@ -3391,6 +3416,10 @@ func flattenKubernetesClusterNetworkProfile(profile *managedclusters.ContainerSe
 			}
 		}
 
+		if v := lbp.BackendPoolType; v != nil {
+			lb["backend_pool_type"] = v
+		}
+
 		lb["effective_outbound_ips"] = resourceReferencesToIds(profile.LoadBalancerProfile.EffectiveOutboundIPs)
 		lbProfiles = append(lbProfiles, lb)
 	}

diff --git a/website/docs/r/kubernetes_cluster.html.markdown b/website/docs/r/kubernetes_cluster.html.markdown
@@ -691,6 +691,8 @@ A `load_balancer_profile` block supports the following:
 
 ~> **Note:** The fields `managed_outbound_ip_count`, `outbound_ip_address_ids` and `outbound_ip_prefix_ids` are mutually exclusive. Note that when specifying `outbound_ip_address_ids` ([azurerm_public_ip](/docs/providers/azurerm/r/public_ip.html)) the SKU must be `standard`.
 
+* `backend_pool_type` - (Optional) The type of the managed inbound Load Balancer Backend Pool. Possible values are `NodeIP` and `NodeIPConfiguration`. Defaults to `NodeIPConfiguration`. See [the documentation](https://learn.microsoft.com/en-us/azure/aks/load-balancer-standard#change-the-inbound-pool-type) for more information.
+
 * `idle_timeout_in_minutes` - (Optional) Desired outbound flow idle timeout in minutes for the cluster load balancer. Must be between `4` and `100` inclusive. Defaults to `30`.
 
 * `managed_outbound_ip_count` - (Optional) Count of desired managed outbound IPs for the cluster load balancer. Must be between `1` and `100` inclusive.