Add serviceDirectoryRegistrations message to resource google_compute_…

…global_forwarding_rule (GoogleCloudPlatform#9485)

* Add serviceDirectoryRegistrations in google_compute_global_forwarding_rule

* Add service_directory_registration message in example private_service_connect_google_apis.tf.erb

* Remove service field from service_directory_registration message as it is not currently applicable for globalForwardingRule

mmv1/products/compute/GlobalForwardingRule.yaml

@@ -484,6 +484,32 @@ properties:
     update_verb: :POST
     update_url: 'projects/{{project}}/global/forwardingRules/{{name}}/setTarget'
     diff_suppress_func: 'tpgresource.CompareSelfLinkRelativePaths'
+  - !ruby/object:Api::Type::Array
+    name: 'serviceDirectoryRegistrations'
+    description: |
+      Service Directory resources to register this forwarding rule with.
+
+      Currently, only supports a single Service Directory resource.
+    min_size: 0
+    max_size: 1
+    immutable: true
+    default_from_api: true
+    item_type: !ruby/object:Api::Type::NestedObject
+      properties:
+        - !ruby/object:Api::Type::String
+          name: 'namespace'
+          description: |
+            Service Directory namespace to register the forwarding rule under.
+          immutable: true
+          default_from_api: true
+        - !ruby/object:Api::Type::String
+          name: 'serviceDirectoryRegion'
+          description: |
+            [Optional] Service Directory region to register this global forwarding rule under.
+            Default to "us-central1". Only used for PSC for Google APIs. All PSC for
+            Google APIs Forwarding Rules on the same network should use the same Service
+            Directory region.
+          immutable: true
   - !ruby/object:Api::Type::Array
     name: sourceIpRanges
     description: If not empty, this Forwarding Rule will only forward the traffic when the source IP address matches one of the IP addresses or CIDR ranges set here. Note that a Forwarding Rule can only have up to 64 source IP ranges, and this field can only be used with a regional Forwarding Rule whose scheme is EXTERNAL. Each sourceIpRange entry should be either an IP address (for example, 1.2.3.4) or a CIDR range (for example, 1.2.3.0/24).

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

@@ -38,5 +38,9 @@ resource "google_compute_global_forwarding_rule" "default" {
   network       = google_compute_network.network.id
   ip_address    = google_compute_global_address.default.id
   load_balancing_scheme = ""
+  service_directory_registrations {
+    namespace                 = "sd-namespace"
+    service_directory_region  = "europe-west3"
+  }
 }
 # [END compute_forwarding_rule_private_access]