Add purpose and role to subnetwork for L7 load balancing

products/compute/api.yaml

@@ -7136,6 +7136,35 @@ objects:
           updates of this resource.
         update_verb: :PATCH
         update_url:  projects/{{project}}/regions/{{region}}/subnetworks/{{name}}
+      - !ruby/object:Api::Type::Enum
+        name: 'purpose'
+        min_version: 'beta'
+        input: true
+        values:
+          - :INTERNAL_HTTPS_LOAD_BALANCER
+          - :PRIVATE_RFC_1918
+          - :PRIVATE
+        description: |
+          The purpose of the resource. This field can be either PRIVATE_RFC_1918
+          or INTERNAL_HTTPS_LOAD_BALANCER. A subnetwork with purpose set to
+          INTERNAL_HTTPS_LOAD_BALANCER is a user-created subnetwork that is
+          reserved for Internal HTTP(S) Load Balancing.
+
+          If set to INTERNAL_HTTPS_LOAD_BALANCER you must also set the role.
+      - !ruby/object:Api::Type::Enum
+        name: 'role'
+        min_version: 'beta'
+        update_verb: :PATCH
+        update_url: projects/{{project}}/regions/{{region}}/subnetworks/{{name}}
+        values:
+          - :ACTIVE
+          - :BACKUP
+        description: |
+          The role of subnetwork. Currenly, this field is only used
+          when purpose = INTERNAL_HTTPS_LOAD_BALANCER. The value can be set
+          to ACTIVE or BACKUP. An ACTIVE subnetwork is one that is currently
+          being used for Internal HTTP(S) Load Balancing. A BACKUP subnetwork
+          is one that is ready to be promoted to ACTIVE or is currently draining.
       - !ruby/object:Api::Type::Array
         name: 'secondaryIpRanges'
         description: |

products/compute/terraform.yaml

@@ -1381,6 +1381,13 @@ overrides: !ruby/object:Overrides::ResourceOverrides
         vars:
           subnetwork_name: "log-test-subnetwork"
           network_name: "log-test-network"
+      - !ruby/object:Provider::Terraform::Examples
+        name: "subnetwork_internal_l7lb"
+        primary_resource_id: "network-for-l7lb"
+        min_version: beta
+        vars:
+          subnetwork_name: "l7lb-test-subnetwork"
+          network_name: "l7lb-test-network"
   TargetHttpProxy: !ruby/object:Overrides::Terraform::ResourceOverride
     examples:
       - !ruby/object:Provider::Terraform::Examples

templates/terraform/examples/subnetwork_internal_l7lb.tf.erb

@@ -0,0 +1,20 @@
+provider "google-beta" {
+  region = "us-central1"
+  zone   = "us-central1-a"
+}
+
+resource "google_compute_subnetwork" "network-for-l7lb" {
+  provider      = "google-beta"
+  name          = "<%= ctx[:vars]['subnetwork_name'] %>"
+  ip_cidr_range = "10.0.0.0/22"
+  region        = "us-central1"
+  purpose       = "INTERNAL_HTTPS_LOAD_BALANCER"
+  role          = "ACTIVE"
+  network       = "${google_compute_network.custom-test.self_link}"
+}
+
+resource "google_compute_network" "custom-test" {
+  provider      = "google-beta"
+  name                    = "<%= ctx[:vars]['network_name'] %>"
+  auto_create_subnetworks = false
+}