Add Node group maintenance policy (#4097)

products/compute/api.yaml

@@ -7951,9 +7951,13 @@ objects:
           The total number of nodes in the node group.
         required: true
         send_empty_value: true
+      - !ruby/object:Api::Type::String
+        name: 'maintenancePolicy'
+        description: |
+          Specifies how to handle instances when a node in the group undergoes maintenance. Set to one of: DEFAULT, RESTART_IN_PLACE, or MIGRATE_WITHIN_NODE_GROUP. The default value is DEFAULT.
+        default_value: DEFAULT
       - !ruby/object:Api::Type::NestedObject
         name: 'autoscalingPolicy'
-        min_version: beta
         description: |
           If you use sole-tenant nodes for your workloads, you can use the node
           group autoscaler to automatically manage the sizes of your node groups.

products/compute/terraform.yaml

@@ -1284,7 +1284,6 @@ overrides: !ruby/object:Overrides::ResourceOverrides
           template_name: "soletenant-tmpl"
       - !ruby/object:Provider::Terraform::Examples
         name: "node_group_autoscaling_policy"
-        min_version: beta
         primary_resource_id: "nodes"
         vars:
           group_name: "soletenant-group"

templates/terraform/examples/node_group_autoscaling_policy.tf.erb

@@ -1,20 +1,18 @@
 resource "google_compute_node_template" "soletenant-tmpl" {
-  provider = google-beta
   name      = "<%= ctx[:vars]['template_name'] %>"
   region    = "us-central1"
   node_type = "n1-node-96-624"
 }
 
 resource "google_compute_node_group" "<%= ctx[:primary_resource_id] %>" {
-  provider = google-beta
   name        = "<%= ctx[:vars]['group_name'] %>"
   zone        = "us-central1-a"
   description = "example google_compute_node_group for Terraform Google Provider"
-
+  maintenance_policy = "RESTART_IN_PLACE"
   size          = 1
   node_template = google_compute_node_template.soletenant-tmpl.id
   autoscaling_policy {
-    mode = "ON"
+    mode      = "ONLY_SCALE_OUT"
     min_nodes = 1
     max_nodes = 10
   }