Feature/support Add support for L4 Internal Loadbalancer with IPv6

mmv1/products/compute/ForwardingRule.yaml

@@ -203,6 +203,17 @@ examples:
       ip_name: 'website-ip'
       backend_name: 'service-backend'
       external_forwarding_rule_name: 'external-forwarding-rule'
+  - !ruby/object:Provider::Terraform::Examples
+    name: "forwarding_rule_internallb_ipv6"
+    primary_resource_id: "default"
+    vars:
+      forwarding_rule_name: "ilb-ipv6-forwarding-rule"
+      backend_name: "ilb-ipv6-backend"
+      network_name: "net-ipv6"
+      subnet_name: "subnet-internal-ipv6"
+    ignore_read_extra:
+      - "port_range"
+      - "target"
 custom_code: !ruby/object:Provider::Terraform::CustomCode
   post_create: templates/terraform/post_create/labels.erb
 parameters:
@@ -617,3 +628,15 @@ properties:
     send_empty_value: true
     immutable: true
     ignore_read: true
+  - !ruby/object:Api::Type::Enum
+    name: 'ipVersion'
+    description: |
+      The IP address version that will be used by this forwarding rule.
+      Valid options are IPV4 and IPV6.
+
+      If not set, the IPv4 address will be used by default.
+    values:
+      - :IPV4
+      - :IPV6
+    immutable: true
+    default_from_api: true

mmv1/templates/terraform/examples/forwarding_rule_internallb.tf.erb

@@ -8,6 +8,7 @@ resource "google_compute_forwarding_rule" "<%= ctx[:primary_resource_id] %>" {
   all_ports             = true
   network               = google_compute_network.default.name
   subnetwork            = google_compute_subnetwork.default.name
+  ip_version            = "IPV4"
 }
 
 resource "google_compute_region_backend_service" "backend" {

mmv1/templates/terraform/examples/forwarding_rule_internallb_ipv6.tf.erb

@@ -0,0 +1,43 @@
+// Forwarding rule for Internal Load Balancing
+resource "google_compute_forwarding_rule" "<%= ctx[:primary_resource_id] %>" {
+  name   = "<%= ctx[:vars]['forwarding_rule_name'] %>"
+  region = "us-central1"
+
+  load_balancing_scheme = "INTERNAL"
+  backend_service       = google_compute_region_backend_service.backend.id
+  all_ports             = true
+  network               = google_compute_network.default.name
+  subnetwork            = google_compute_subnetwork.default.name
+  ip_version            = "IPV6"
+}
+
+resource "google_compute_region_backend_service" "backend" {
+  name          = "<%= ctx[:vars]['backend_name'] %>"
+  region        = "us-central1"
+  health_checks = [google_compute_health_check.hc.id]
+}
+
+resource "google_compute_health_check" "hc" {
+  name               = "check-<%= ctx[:vars]['backend_name'] %>"
+  check_interval_sec = 1
+  timeout_sec        = 1
+
+  tcp_health_check {
+    port = "80"
+  }
+}
+
+resource "google_compute_network" "default" {
+  name                    = "<%= ctx[:vars]['network_name'] %>"
+  auto_create_subnetworks = false
+  enable_ula_internal_ipv6 = true
+}
+
+resource "google_compute_subnetwork" "default" {
+  name          = "<%= ctx[:vars]['subnet_name'] %>"
+  ip_cidr_range = "10.0.0.0/16"
+  region        = "us-central1"
+  stack_type       = "IPV4_IPV6"
+  ipv6_access_type = "INTERNAL"
+  network       = google_compute_network.default.id
+}