Add support for INTERNAL_SELF_MANAGED backend service and global forw…

…arding rule

products/compute/api.yaml

@@ -807,6 +807,8 @@ objects:
            The list of URLs to the HttpHealthCheck or HttpsHealthCheck resource
            for health checking this BackendService. Currently at most one health
            check can be specified, and a health check is required.
+
+           For internal load balancing, a URL to a HealthCheck resource must be specified instead.
       - !ruby/object:Api::Type::Integer
         name: 'id'
         description: 'The unique identifier for the resource.'
@@ -839,14 +841,15 @@ objects:
         description: |
           Indicates whether the backend service will be used with internal or
           external load balancing. A backend service created for one type of
-          load balancing cannot be used with the other. Must be `EXTERNAL` for
-          a global backend service. Defaults to `EXTERNAL`.
+          load balancing cannot be used with the other. Must be `EXTERNAL` or
+          `INTERNAL_SELF_MANAGED` for a global backend service. Defaults to `EXTERNAL`.
         default_value: :EXTERNAL
         # If you're modifying this value, it probably means Global ILB is now
         # an option. If that's the case, all of the documentation is based on
         # this resource supporting external load balancing only.
         values:
           - :EXTERNAL
+          - :INTERNAL_SELF_MANAGED
       - !ruby/object:Api::Type::String
         name: 'name'
         required: true
@@ -2317,6 +2320,7 @@ objects:
 
           NOTE: Currently global forwarding rules cannot be used for INTERNAL
           load balancing.
+        default_value: :EXTERNAL
         values:
           - :INTERNAL_SELF_MANAGED
           - :EXTERNAL

products/compute/terraform.yaml

@@ -532,6 +532,14 @@ overrides: !ruby/object:Overrides::ResourceOverrides
           forwarding_rule_name: "global-rule"
           http_proxy_name: "target-proxy"
           backend_service_name: "backend"
+      - !ruby/object:Provider::Terraform::Examples
+        name: "global_forwarding_rule_internal"
+        min_version: beta
+        primary_resource_id: "default"
+        vars:
+          forwarding_rule_name: "global-rule"
+          http_proxy_name: "target-proxy"
+          backend_service_name: "backend"
     properties:
       creationTimestamp: !ruby/object:Overrides::Terraform::PropertyOverride
         exclude: true
@@ -542,10 +550,8 @@ overrides: !ruby/object:Overrides::ResourceOverrides
       IPProtocol: !ruby/object:Overrides::Terraform::PropertyOverride
         diff_suppress_func: 'caseDiffSuppress'
         default_from_api: true
-      loadBalancingScheme: !ruby/object:Overrides::Terraform::PropertyOverride
-        exclude: true
       network: !ruby/object:Overrides::Terraform::PropertyOverride
-        exclude: true
+        default_from_api: true
       portRange: !ruby/object:Overrides::Terraform::PropertyOverride
         diff_suppress_func: 'portRangeDiffSuppress'
       target: !ruby/object:Overrides::Terraform::PropertyOverride

templates/terraform/examples/global_forwarding_rule_internal.tf.erb

@@ -0,0 +1,59 @@
+resource "google_compute_global_forwarding_rule" "default" {
+  provider              = "google-beta"
+  name                  = "<%= ctx[:vars]['forwarding_rule_name'] %>"
+  target                = "${google_compute_target_http_proxy.default.self_link}"
+  port_range            = "80"
+  load_balancing_scheme = "INTERNAL_SELF_MANAGED"
+  ip_address            = "0.0.0.0"
+}
+
+resource "google_compute_target_http_proxy" "default" {
+  provider    = "google-beta"
+  name        = "<%= ctx[:vars]['http_proxy_name'] %>"
+  description = "a description"
+  url_map     = "${google_compute_url_map.default.self_link}"
+}
+
+resource "google_compute_url_map" "default" {
+  provider         = "google-beta"
+  name            = "url-map-<%= ctx[:vars]['http_proxy_name'] %>"
+  description     = "a description"
+  default_service = "${google_compute_backend_service.default.self_link}"
+
+  host_rule {
+    hosts        = ["mysite.com"]
+    path_matcher = "allpaths"
+  }
+
+  path_matcher {
+    name            = "allpaths"
+    default_service = "${google_compute_backend_service.default.self_link}"
+
+    path_rule {
+      paths   = ["/*"]
+      service = "${google_compute_backend_service.default.self_link}"
+    }
+  }
+}
+
+resource "google_compute_backend_service" "default" {
+  provider              = "google-beta"
+  name                  = "<%= ctx[:vars]['backend_service_name'] %>"
+  port_name             = "http"
+  protocol              = "HTTP"
+  timeout_sec           = 10
+  load_balancing_scheme = "INTERNAL_SELF_MANAGED"
+
+  health_checks = ["${google_compute_health_check.default.self_link}"]
+}
+
+resource "google_compute_health_check" "default" {
+  provider           = "google-beta"
+  name               = "check-<%= ctx[:vars]['backend_service_name'] %>"
+  check_interval_sec = 1
+  timeout_sec        = 1
+
+  tcp_health_check {
+    port = "80"
+  }
+}