workbench instances support for static external IP

mmv1/products/workbench/Instance.yaml

@@ -381,6 +381,27 @@ properties:
               values:
                 - VIRTIO_NET
                 - GVNIC
+            - !ruby/object:Api::Type::Array
+              name: accessConfigs
+              immutable: true
+              default_from_api: true
+              description: |
+                Optional. An array of configurations for this interface. Currently, only one access
+                config, ONE_TO_ONE_NAT, is supported. If no accessConfigs specified, the
+                instance will have an external internet access through an ephemeral
+                external IP address.
+              item_type: !ruby/object:Api::Type::NestedObject
+                properties:
+                  - !ruby/object:Api::Type::String
+                    name: externalIp
+                    immutable: true
+                    required: true
+                    description: |
+                      An external IP address associated with this instance. Specify an unused
+                      static external IP address available to the project or leave this field
+                      undefined to use an IP from a shared ephemeral IP address pool. If you
+                      specify a static external IP address, it must live in the same region as
+                      the zone of the instance.
           description: Optional. The network interfaces for the VM. Supports only one interface.
       - !ruby/object:Api::Type::Boolean
         name: disablePublicIp

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

@@ -10,6 +10,10 @@ resource "google_compute_subnetwork" "my_subnetwork" {
   ip_cidr_range = "10.0.1.0/24"
 }
 
+resource "google_compute_address" "static" {
+  name = "<%= ctx[:vars]['network_name'] %>"
+}
+
 resource "google_workbench_instance" "<%= ctx[:primary_resource_id] %>" {
   name = "<%= ctx[:vars]['instance_name'] %>"
   location = "us-central1-a"
@@ -51,6 +55,9 @@ resource "google_workbench_instance" "<%= ctx[:primary_resource_id] %>" {
       network = google_compute_network.my_network.id
       subnet = google_compute_subnetwork.my_subnetwork.id
       nic_type = "GVNIC"
+      access_configs {
+        external_ip = google_compute_address.static.address
+      }
     }
 
     metadata = {