Add support for Network Tier configuration

mmv1/third_party/terraform/services/container/resource_container_cluster.go.tmpl

@@ -1874,6 +1874,24 @@ func ResourceContainerCluster() *schema.Resource {
 								},
 							},
 						},
+						"network_tier_config": {
+							Type: schema.TypeList,
+							MaxItems: 1,
+							Optional: true,
+							Computed: true,
+							Description: `Used to determine the default network tier for external IP addresses on cluster resources, such as node pools and load balancers.`,
+							Elem: &schema.Resource{
+								Schema: map[string]*schema.Schema{
+									"network_tier": {
+										Type:         schema.TypeString,
+										Optional:     true,
+										Default:	  "NETWORK_TIER_DEFAULT",
+										ValidateFunc: validation.StringInSlice([]string{"NETWORK_TIER_DEFAULT", "NETWORK_TIER_STANDARD", "NETWORK_TIER_PREMIUM"}, false),
+										Description:  `Network tier configuration.`,
+									},
+								},
+							},
+						},
 					},
 				},
 			},
@@ -4359,6 +4377,24 @@ func resourceContainerClusterUpdate(d *schema.ResourceData, meta interface{}) er
 		log.Printf("[INFO] GKE cluster %s's AutoIpamConfig has been updated", d.Id())
 	}
 
+	if d.HasChange("ip_allocation_policy.0.network_tier_config.0.network_tier") {
+		req := &container.UpdateClusterRequest{
+			Update: &container.ClusterUpdate{
+				DesiredNetworkTierConfig: &container.NetworkTierConfig{
+					NetworkTier: d.Get("ip_allocation_policy.0.network_tier_config.0.network_tier").(string),
+				},
+			},
+		}
+
+		updateF := updateFunc(req, "updating NetworkTierConfig")
+		// Call update serially.
+		if err := transport_tpg.LockedCall(lockKey, updateF); err != nil {
+			return err
+		}
+
+		log.Printf("[INFO] GKE cluster %s's NetworkTierConfig has been updated", d.Id())
+	}
+
 	if n, ok := d.GetOk("node_pool.#"); ok {
 		for i := 0; i < n.(int); i++ {
 			nodePoolInfo, err := extractNodePoolInformationFromCluster(d, config, clusterName)
@@ -5610,9 +5646,22 @@ func expandIPAllocationPolicy(configured interface{}, d *schema.ResourceData, ne
 		StackType:              stackType,
 		PodCidrOverprovisionConfig: expandPodCidrOverprovisionConfig(config["pod_cidr_overprovision_config"]),
 		AutoIpamConfig: expandAutoIpamConfig(config["auto_ipam_config"]),
+		NetworkTierConfig:       expandNetworkTierConfig(config["network_tier_config"]),
 	}, additionalIpRangesConfigs, nil
 }
 
+func expandNetworkTierConfig(configured interface{}) *container.NetworkTierConfig {
+	l := configured.([]interface{})
+	if len(l) == 0 || l[0] == nil {
+		return nil
+	}
+
+	config := l[0].(map[string]interface{})
+	return &container.NetworkTierConfig{
+		NetworkTier:    config["network_tier"].(string),
+	}
+}
+
 func expandAutoIpamConfig(configured interface{}) *container.AutoIpamConfig {
 	l, ok := configured.([]interface{})
 	if !ok || len(l) == 0 || l[0] == nil {
@@ -7268,6 +7317,18 @@ func flattenAdditionalIpRangesConfigs(c []*container.AdditionalIPRangesConfig) [
 	return outRanges
 }
 
+func flattenNetworkTierConfig(ntc *container.NetworkTierConfig) []map[string]interface{} {
+	if ntc == nil {
+		return nil
+	}
+
+	return []map[string]interface{}{
+		{
+			"network_tier": ntc.NetworkTier,
+		},
+	}
+}
+
 func flattenIPAllocationPolicy(c *container.Cluster, d *schema.ResourceData, config *transport_tpg.Config) ([]map[string]interface{}, error) {
 	// If IP aliasing isn't enabled, none of the values in this block can be set.
 	if c == nil || c.IpAllocationPolicy == nil || !c.IpAllocationPolicy.UseIpAliases {
@@ -7300,6 +7361,7 @@ func flattenIPAllocationPolicy(c *container.Cluster, d *schema.ResourceData, con
 			"additional_pod_ranges_config":  flattenAdditionalPodRangesConfig(c.IpAllocationPolicy),
 			"additional_ip_ranges_config":   flattenAdditionalIpRangesConfigs(p.AdditionalIpRangesConfigs),
 			"auto_ipam_config":              flattenAutoIpamConfig(p.AutoIpamConfig),
+			"network_tier_config":           flattenNetworkTierConfig(p.NetworkTierConfig),
 		},
 	}, nil
 }

mmv1/third_party/terraform/services/container/resource_container_cluster_meta.yaml.tmpl

@@ -165,6 +165,7 @@ fields:
   - api_field: 'ipAllocationPolicy.autoIpamConfig.enabled'
   - api_field: 'ipAllocationPolicy.clusterIpv4CidrBlock'
   - api_field: 'ipAllocationPolicy.clusterSecondaryRangeName'
+  - api_field: 'ipAllocationPolicy.networkTierConfig.networkTier'
   - field: 'ip_allocation_policy.pod_cidr_overprovision_config.disabled'
     api_field: 'ip_allocation_policy.pod_cidr_overprovision_config.disable'
   - api_field: 'ipAllocationPolicy.servicesIpv4CidrBlock'

mmv1/third_party/terraform/services/container/resource_container_cluster_test.go.tmpl

@@ -6868,6 +6868,101 @@ func TestAccContainerCluster_withCpuCfsQuotaPool(t *testing.T) {
 	})
 }
 
+func TestAccContainerCluster_network_tier_config(t *testing.T) {
+	t.Parallel()
+
+	clusterName := fmt.Sprintf("tf-test-cluster-%s", acctest.RandString(t, 10))
+	networkName := acctest.BootstrapSharedTestNetwork(t, "gke-cluster")
+	subnetworkName := acctest.BootstrapSubnet(t, "gke-cluster", networkName)
+
+	acctest.VcrTest(t, resource.TestCase{
+		PreCheck:	  func() { acctest.AccTestPreCheck(t) },
+		ProtoV5ProviderFactories: acctest.ProtoV5ProviderFactories(t),
+		CheckDestroy: testAccCheckContainerClusterDestroyProducer(t),
+		Steps: []resource.TestStep{
+			{
+				Config: testAccContainerCluster_network_tier_config_none(clusterName, networkName, subnetworkName),
+				Check: resource.ComposeTestCheckFunc(
+					resource.TestCheckResourceAttr("google_container_cluster.primary", "ip_allocation_policy.0.network_tier_config.0.network_tier", "NETWORK_TIER_DEFAULT"),
+				),
+			},
+			{
+				ResourceName:      "google_container_cluster.primary",
+				ImportState:       true,
+				ImportStateVerify: true,
+				ImportStateVerifyIgnore: []string{"deletion_protection"},
+			},
+			{
+				Config: testAccContainerCluster_network_tier_config(clusterName, networkName, subnetworkName, "NETWORK_TIER_PREMIUM"),
+				Check: resource.ComposeTestCheckFunc(
+					resource.TestCheckResourceAttr("google_container_cluster.primary", "ip_allocation_policy.0.network_tier_config.0.network_tier", "NETWORK_TIER_PREMIUM"),
+				),
+			},
+			{
+				ResourceName:      "google_container_cluster.primary",
+				ImportState:       true,
+				ImportStateVerify: true,
+				ImportStateVerifyIgnore: []string{"deletion_protection"},
+			},
+			{
+				Config: testAccContainerCluster_network_tier_config(clusterName, networkName, subnetworkName, "NETWORK_TIER_STANDARD"),
+				Check: resource.ComposeTestCheckFunc(
+					resource.TestCheckResourceAttr("google_container_cluster.primary", "ip_allocation_policy.0.network_tier_config.0.network_tier", "NETWORK_TIER_STANDARD"),
+				),
+			},
+			{
+				ResourceName:      "google_container_cluster.primary",
+				ImportState:       true,
+				ImportStateVerify: true,
+				ImportStateVerifyIgnore: []string{"deletion_protection"},
+			},
+		},
+	})
+}
+
+func testAccContainerCluster_network_tier_config(clusterName, networkName, subnetworkName, networkTier string) string {
+	return fmt.Sprintf(`
+resource "google_container_cluster" "primary" {
+  name               = "%s"
+  location           = "us-central1-a"
+  initial_node_count = 2
+  dns_config {
+    cluster_dns      = "CLOUD_DNS"
+  }
+
+  network    = "%s"
+  subnetwork = "%s"
+
+  deletion_protection = false
+
+  ip_allocation_policy {
+    network_tier_config {
+      network_tier = "%s"
+    }
+  }
+}`, clusterName, networkName, subnetworkName, networkTier)
+}
+
+func testAccContainerCluster_network_tier_config_none(clusterName, networkName, subnetworkName string) string {
+	return fmt.Sprintf(`
+resource "google_container_cluster" "primary" {
+  name               = "%s"
+  location           = "us-central1-a"
+  initial_node_count = 2
+  dns_config {
+    cluster_dns      = "CLOUD_DNS"
+  }
+
+  network    = "%s"
+  subnetwork = "%s"
+
+  deletion_protection = false
+
+  ip_allocation_policy {
+  }
+}`, clusterName, networkName, subnetworkName)
+}
+
 func testAccContainerCluster_masterAuthorizedNetworksDisabled(t *testing.T, resource_name string) resource.TestCheckFunc {
 	return func(s *terraform.State) error {
 		rs, ok := s.RootModule().Resources[resource_name]

mmv1/third_party/terraform/website/docs/r/container_cluster.html.markdown

@@ -831,6 +831,8 @@ Structure is [documented below](#nested_additional_ip_ranges_config).
 
 * `auto_ipam_config` - (Optional) All the information related to Auto IPAM. Structure is [documented below](#nested_auto_ipam_config)
 
+* `network_tier_config` - (Optional) Contains network tier information. Structure is [documented below](#nested_network_tier_config)
+
 <a name="nested_auto_ipam_config"></a>The auto ipam config supports:
 
 * `enabled` - (Required) The flag that enables Auto IPAM on this cluster.
@@ -847,6 +849,14 @@ Structure is [documented below](#nested_additional_ip_ranges_config).
 
 * `pod_ipv4_range_names`- (Required) List of secondary ranges names within this subnetwork that can be used for pod IPs.
 
+<a name="nested_network_tier_config"></a>The `network_tier_config` block supports:
+
+* `network_tier` - (Optional) Network tier configuration.
+    Accepted values are:
+    * `NETWORK_TIER_DEFAULT`: Use project-level configuration.
+    * `NETWORK_TIER_PREMIUM`: Premium network tier.
+    * `NETWORK_TIER_STANDARD`: Standard network tier.
+
 
 <a name="nested_master_auth"></a>The `master_auth` block supports: