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azurerm_kubernetes_cluster - add advanced_network_policies property to network_profile.advanced_networking block #31506

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263 changes: 263 additions & 0 deletions internal/services/containers/kubernetes_cluster_network_resource_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -101,6 +101,64 @@ func TestAccKubernetesCluster_advancedNetworkingNetworkDataplane(t *testing.T) {
})
}

func TestAccKubernetesCluster_advancedNetworkingPolicies(t *testing.T) {
data := acceptance.BuildTestData(t, "azurerm_kubernetes_cluster", "test")
r := KubernetesClusterResource{}

data.ResourceTest(t, r, []acceptance.TestStep{
{
Config: r.advancedNetworkingWithPolicies(data, "FQDN"),
Check: acceptance.ComposeTestCheckFunc(
check.That(data.ResourceName).ExistsInAzure(r),
),
},
data.ImportStep(),
{
Config: r.advancedNetworkingWithPolicies(data, "L7"),
Check: acceptance.ComposeTestCheckFunc(
check.That(data.ResourceName).ExistsInAzure(r),
),
},
data.ImportStep(),
})
}

func TestAccKubernetesCluster_advancedNetworkingPoliciesFQDNRequiresSecurity(t *testing.T) {
data := acceptance.BuildTestData(t, "azurerm_kubernetes_cluster", "test")
r := KubernetesClusterResource{}

data.ResourceTest(t, r, []acceptance.TestStep{
{
Config: r.advancedNetworkingWithPoliciesSecurityDisabled(data, "FQDN"),
ExpectError: regexp.MustCompile("`network_profile.0.advanced_networking.0.advanced_network_policies` can only be set when `network_profile.0.advanced_networking.0.security_enabled` is set to `true`"),
},
})
}

func TestAccKubernetesCluster_advancedNetworkingPoliciesL7RequiresSecurity(t *testing.T) {
data := acceptance.BuildTestData(t, "azurerm_kubernetes_cluster", "test")
r := KubernetesClusterResource{}

data.ResourceTest(t, r, []acceptance.TestStep{
{
Config: r.advancedNetworkingWithPoliciesSecurityDisabled(data, "L7"),
ExpectError: regexp.MustCompile("`network_profile.0.advanced_networking.0.advanced_network_policies` can only be set when `network_profile.0.advanced_networking.0.security_enabled` is set to `true`"),
},
})
}

func TestAccKubernetesCluster_advancedNetworkingPoliciesConflictsWithIstio(t *testing.T) {
data := acceptance.BuildTestData(t, "azurerm_kubernetes_cluster", "test")
r := KubernetesClusterResource{}

data.ResourceTest(t, r, []acceptance.TestStep{
{
Config: r.advancedNetworkingWithPoliciesAndIstio(data, "L7"),
ExpectError: regexp.MustCompile("`network_profile.0.advanced_networking.0.advanced_network_policies` cannot be set when `service_mesh_profile.0.mode` is set to `Istio`"),
},
})
}

func TestAccKubernetesCluster_serviceMeshProfile(t *testing.T) {
data := acceptance.BuildTestData(t, "azurerm_kubernetes_cluster", "test")
r := KubernetesClusterResource{}
Expand Down Expand Up @@ -1549,6 +1607,211 @@ resource "azurerm_kubernetes_cluster" "test" {
`, data.RandomInteger, data.Locations.Primary, data.RandomInteger, data.RandomInteger, data.RandomInteger, data.RandomInteger, data.RandomInteger, networkPlugin)
}

func (KubernetesClusterResource) advancedNetworkingWithPolicies(data acceptance.TestData, advancedNetworkPolicies string) string {
return fmt.Sprintf(`
provider "azurerm" {
features {}
}

resource "azurerm_resource_group" "test" {
name = "acctestRG-aks-%[1]d"
location = "%[2]s"
}

resource "azurerm_virtual_network" "test" {
name = "acctestvirtnet%[1]d"
address_space = ["10.0.0.0/8"]
location = azurerm_resource_group.test.location
resource_group_name = azurerm_resource_group.test.name
}

resource "azurerm_subnet" "test" {
name = "acctestsubnet%[1]d"
resource_group_name = azurerm_resource_group.test.name
virtual_network_name = azurerm_virtual_network.test.name
address_prefixes = ["10.1.0.0/16"]
}

resource "azurerm_kubernetes_cluster" "test" {
name = "acctestaks%[1]d"
location = azurerm_resource_group.test.location
resource_group_name = azurerm_resource_group.test.name
dns_prefix = "acctestaks%[1]d"

linux_profile {
admin_username = "acctestuser%[1]d"

ssh_key {
key_data = "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCqaZoyiz1qbdOQ8xEf6uEu1cCwYowo5FHtsBhqLoDnnp7KUTEBN+L2NxRIfQ781rxV6Iq5jSav6b2Q8z5KiseOlvKA/RF2wqU0UPYqQviQhLmW6THTpmrv/YkUCuzxDpsH7DUDhZcwySLKVVe0Qm3+5N2Ta6UYH3lsDf9R9wTP2K/+vAnflKebuypNlmocIvakFWoZda18FOmsOoIVXQ8HWFNCuw9ZCunMSN62QGamCe3dL5cXlkgHYv7ekJE15IA9aOJcM7e90oeTqo+7HTcWfdu0qQqPWY5ujyMw/llas8tsXY85LFqRnr3gJ02bAscjc477+X+j/gkpFoN1QEmt terraform@demo.tld"
}
}

default_node_pool {
name = "default"
node_count = 2
vm_size = "Standard_DS2_v2"
vnet_subnet_id = azurerm_subnet.test.id
upgrade_settings {
max_surge = "10%%"
}
}

identity {
type = "SystemAssigned"
}

network_profile {
network_plugin = "azure"
network_data_plane = "cilium"

advanced_networking {
observability_enabled = true
security_enabled = true
advanced_network_policies = "%[3]s"
}
}
}
`, data.RandomInteger, data.Locations.Primary, advancedNetworkPolicies)
}

func (KubernetesClusterResource) advancedNetworkingWithPoliciesSecurityDisabled(data acceptance.TestData, advancedNetworkPolicies string) string {
return fmt.Sprintf(`
provider "azurerm" {
features {}
}

resource "azurerm_resource_group" "test" {
name = "acctestRG-aks-%[1]d"
location = "%[2]s"
}

resource "azurerm_virtual_network" "test" {
name = "acctestvirtnet%[1]d"
address_space = ["10.0.0.0/8"]
location = azurerm_resource_group.test.location
resource_group_name = azurerm_resource_group.test.name
}

resource "azurerm_subnet" "test" {
name = "acctestsubnet%[1]d"
resource_group_name = azurerm_resource_group.test.name
virtual_network_name = azurerm_virtual_network.test.name
address_prefixes = ["10.1.0.0/16"]
}

resource "azurerm_kubernetes_cluster" "test" {
name = "acctestaks%[1]d"
location = azurerm_resource_group.test.location
resource_group_name = azurerm_resource_group.test.name
dns_prefix = "acctestaks%[1]d"

linux_profile {
admin_username = "acctestuser%[1]d"

ssh_key {
key_data = "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCqaZoyiz1qbdOQ8xEf6uEu1cCwYowo5FHtsBhqLoDnnp7KUTEBN+L2NxRIfQ781rxV6Iq5jSav6b2Q8z5KiseOlvKA/RF2wqU0UPYqQviQhLmW6THTpmrv/YkUCuzxDpsH7DUDhZcwySLKVVe0Qm3+5N2Ta6UYH3lsDf9R9wTP2K/+vAnflKebuypNlmocIvakFWoZda18FOmsOoIVXQ8HWFNCuw9ZCunMSN62QGamCe3dL5cXlkgHYv7ekJE15IA9aOJcM7e90oeTqo+7HTcWfdu0qQqPWY5ujyMw/llas8tsXY85LFqRnr3gJ02bAscjc477+X+j/gkpFoN1QEmt terraform@demo.tld"
}
}

default_node_pool {
name = "default"
node_count = 2
vm_size = "Standard_DS2_v2"
vnet_subnet_id = azurerm_subnet.test.id
upgrade_settings {
max_surge = "10%%"
}
}

identity {
type = "SystemAssigned"
}

network_profile {
network_plugin = "azure"
network_data_plane = "cilium"

advanced_networking {
observability_enabled = true
security_enabled = false
advanced_network_policies = "%[3]s"
}
}
}
`, data.RandomInteger, data.Locations.Primary, advancedNetworkPolicies)
}

func (KubernetesClusterResource) advancedNetworkingWithPoliciesAndIstio(data acceptance.TestData, advancedNetworkPolicies string) string {
return fmt.Sprintf(`
provider "azurerm" {
features {}
}

resource "azurerm_resource_group" "test" {
name = "acctestRG-aks-%[1]d"
location = "%[2]s"
}

resource "azurerm_virtual_network" "test" {
name = "acctestvirtnet%[1]d"
address_space = ["10.0.0.0/8"]
location = azurerm_resource_group.test.location
resource_group_name = azurerm_resource_group.test.name
}

resource "azurerm_subnet" "test" {
name = "acctestsubnet%[1]d"
resource_group_name = azurerm_resource_group.test.name
virtual_network_name = azurerm_virtual_network.test.name
address_prefixes = ["10.1.0.0/16"]
}

resource "azurerm_kubernetes_cluster" "test" {
name = "acctestaks%[1]d"
location = azurerm_resource_group.test.location
resource_group_name = azurerm_resource_group.test.name
dns_prefix = "acctestaks%[1]d"

linux_profile {
admin_username = "acctestuser%[1]d"

ssh_key {
key_data = "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCqaZoyiz1qbdOQ8xEf6uEu1cCwYowo5FHtsBhqLoDnnp7KUTEBN+L2NxRIfQ781rxV6Iq5jSav6b2Q8z5KiseOlvKA/RF2wqU0UPYqQviQhLmW6THTpmrv/YkUCuzxDpsH7DUDhZcwySLKVVe0Qm3+5N2Ta6UYH3lsDf9R9wTP2K/+vAnflKebuypNlmocIvakFWoZda18FOmsOoIVXQ8HWFNCuw9ZCunMSN62QGamCe3dL5cXlkgHYv7ekJE15IA9aOJcM7e90oeTqo+7HTcWfdu0qQqPWY5ujyMw/llas8tsXY85LFqRnr3gJ02bAscjc477+X+j/gkpFoN1QEmt terraform@demo.tld"
}
}

default_node_pool {
name = "default"
node_count = 2
vm_size = "Standard_DS2_v2"
vnet_subnet_id = azurerm_subnet.test.id
upgrade_settings {
max_surge = "10%%"
}
}

identity {
type = "SystemAssigned"
}

network_profile {
network_plugin = "azure"
network_data_plane = "cilium"

advanced_networking {
observability_enabled = true
security_enabled = true
advanced_network_policies = "%[3]s"
}
}

service_mesh_profile {
mode = "Istio"
}
}
`, data.RandomInteger, data.Locations.Primary, advancedNetworkPolicies)
}

func (KubernetesClusterResource) serviceMeshProfile(data acceptance.TestData, internalIngressEnabled bool, externalIngressEnabled bool) string {
return fmt.Sprintf(`
provider "azurerm" {
Expand Down
40 changes: 35 additions & 5 deletions internal/services/containers/kubernetes_cluster_resource.go
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Original file line number Diff line number Diff line change
Expand Up @@ -185,6 +185,15 @@ func resourceKubernetesCluster() *pluginsdk.Resource {
return fmt.Errorf("when `network_profile.0.advanced_networking` has `security_enabled` set to `true`, `network_profile.0.network_plugin` must be set to `%s`", managedclusters.NetworkPluginAzure)
}
}
advancedNetworkPolicies := d.Get("network_profile.0.advanced_networking.0.advanced_network_policies").(string)
if !securityEnabled && advancedNetworkPolicies != "" {
return fmt.Errorf("`network_profile.0.advanced_networking.0.advanced_network_policies` can only be set when `network_profile.0.advanced_networking.0.security_enabled` is set to `true`")
}
if advancedNetworkPolicies != "" {
if mode := d.Get("service_mesh_profile.0.mode").(string); mode == string(managedclusters.ServiceMeshModeIstio) {
return fmt.Errorf("`network_profile.0.advanced_networking.0.advanced_network_policies` cannot be set when `service_mesh_profile.0.mode` is set to `%s`", managedclusters.ServiceMeshModeIstio)
}
}
}
return nil
},
Expand Down Expand Up @@ -1366,6 +1375,15 @@ func resourceKubernetesCluster() *pluginsdk.Resource {
Default: false,
AtLeastOneOf: []string{"network_profile.0.advanced_networking.0.observability_enabled", "network_profile.0.advanced_networking.0.security_enabled"},
},
"advanced_network_policies": {
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@wuxu92 wuxu92 Apr 15, 2026

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as this in nest in the advanced_networking block and only one item is allowed, we may rename it to

Suggested change
"advanced_network_policies": {
"policy": {

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@nddq nddq Apr 21, 2026

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this is the official name for this feature in the API, so I don't think we can change it

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@wuxu92 wuxu92 Apr 21, 2026

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The field name in Terraform resource doesn't have to be the same as the API/official, we prefer to deliver a clear and easy to use schema

Type: pluginsdk.TypeString,
Optional: true,
ValidateFunc: validation.StringInSlice([]string{
string(managedclusters.AdvancedNetworkPoliciesFQDN),
string(managedclusters.AdvancedNetworkPoliciesLSeven),
// Note: Whilst the `None` value exists it's handled in the Create/Update and Read functions.
}, false),
},
},
},
},
Expand Down Expand Up @@ -3739,14 +3757,21 @@ func expandKubernetesClusterAdvancedNetworking(input []interface{}, d *pluginsdk
observabilityEnabled := config["observability_enabled"].(bool)
securityEnabled := config["security_enabled"].(bool)

advancedNetworkPolicies := managedclusters.AdvancedNetworkPoliciesNone
if v := config["advanced_network_policies"].(string); v != "" {
advancedNetworkPolicies = managedclusters.AdvancedNetworkPolicies(v)
}
security := &managedclusters.AdvancedNetworkingSecurity{
Enabled: pointer.To(securityEnabled),
AdvancedNetworkPolicies: pointer.To(advancedNetworkPolicies),
}

return &managedclusters.AdvancedNetworking{
Enabled: pointer.To(true),
Observability: &managedclusters.AdvancedNetworkingObservability{
Enabled: pointer.To(observabilityEnabled),
},
Security: &managedclusters.AdvancedNetworkingSecurity{
Enabled: pointer.To(securityEnabled),
},
Security: security,
}
}

Expand All @@ -3761,14 +3786,19 @@ func flattenKubernetesClusterAdvancedNetworking(advancedNetworking *managedclust
}

securityEnabled := false
advancedNetworkPolicies := ""
if advancedNetworking.Security != nil {
securityEnabled = pointer.From(advancedNetworking.Security.Enabled)
if v := advancedNetworking.Security.AdvancedNetworkPolicies; v != nil && *v != managedclusters.AdvancedNetworkPoliciesNone {
advancedNetworkPolicies = string(*v)
}
}

return []interface{}{
map[string]interface{}{
"observability_enabled": observabilityEnabled,
"security_enabled": securityEnabled,
"observability_enabled": observabilityEnabled,
"security_enabled": securityEnabled,
"advanced_network_policies": advancedNetworkPolicies,
},
}
}
Expand Down
2 changes: 2 additions & 0 deletions website/docs/r/kubernetes_cluster.html.markdown
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Original file line number Diff line number Diff line change
Expand Up @@ -736,6 +736,8 @@ An `advanced_networking` block supports the following:

* `security_enabled` - (Optional) Is security enabled? Defaults to `false`. This can only be enabled (set to `true`) when `network_plugin` is set to `azure` and `network_data_plane` is set to `cilium`.

* `advanced_network_policies` - (Optional) Specifies the advanced network policy for the cluster. Possible values are `FQDN` and `L7`. This can only be set when `security_enabled` is set to `true` and `network_data_plane` is set to `cilium`. This cannot be set when `service_mesh_profile` `mode` is set to `Istio`. Omitting this field disables advanced network policy enforcement (equivalent to `None`).

---

A `load_balancer_profile` block supports the following:
Expand Down
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