Autoscaler stabilization_period field support

mmv1/products/compute/Autoscaler.yaml

@@ -57,7 +57,7 @@
       instance_template_name: 'my-instance-template'
       target_pool_name: 'my-target-pool'
       igm_name: 'my-igm'
         # Add test_vars_overrides and oics_vars_overrides to fix the failing test,
         # which is caused by upgradting terraform-plugin-sdk to 2.24.0.
       provider_name: 'google-beta'
       provider_alias: ''
@@ -153,6 +153,16 @@
           and time the startup process.
         api_name: coolDownPeriodSec
         default_value: 60
+      - name: 'stabilizationPeriod'
+        type: Integer
+        description: |
+          The number of seconds that the autoscaler waits for load stabilization
+          before making scale-in decisions.
+
+          This might appear as a delay in scaling in but it is an important mechanism
+          for your application to not have fluctuating size due to short term load
+          fluctuations.
+        api_name: stabilizationPeriodSec
       - name: 'mode'
         type: String
         description: |

mmv1/products/compute/RegionAutoscaler.yaml

@@ -132,6 +132,16 @@ properties:
           and time the startup process.
         api_name: coolDownPeriodSec
         default_value: 60
+      - name: 'stabilizationPeriod'
+        type: Integer
+        description: |
+          The number of seconds that the autoscaler waits for load stabilization
+          before making scale-in decisions.
+
+          This might appear as a delay in scaling in but it is an important mechanism
+          for your application to not have fluctuating size due to short term load
+          fluctuations.
+        api_name: stabilizationPeriodSec
       - name: 'mode'
         type: String
         description: |

mmv1/templates/terraform/examples/autoscaler_basic.tf.tmpl

@@ -7,6 +7,7 @@ resource "google_compute_autoscaler" "foobar" {
     max_replicas    = 5
     min_replicas    = 1
     cooldown_period = 60
+    stabilization_period = 300
 
     cpu_utilization {
       target = 0.5

mmv1/templates/terraform/examples/autoscaler_single_instance.tf.tmpl

@@ -9,6 +9,7 @@ resource "google_compute_autoscaler" "{{$.PrimaryResourceId}}" {
     max_replicas    = 5
     min_replicas    = 1
     cooldown_period = 60
+    stabilization_period = 300
 
     metric {
       name                       = "pubsub.googleapis.com/subscription/num_undelivered_messages"
@@ -76,4 +77,4 @@ provider "google-beta" {
   region = "us-central1"
   zone   = "us-central1-a"
   {{index $.Vars "provider_alias"}}
-}
+}

mmv1/templates/terraform/examples/region_autoscaler_basic.tf.tmpl

@@ -7,6 +7,7 @@ resource "google_compute_region_autoscaler" "{{$.PrimaryResourceId}}" {
     max_replicas    = 5
     min_replicas    = 1
     cooldown_period = 60
+    stabilization_period = 300
 
     cpu_utilization {
       target = 0.5