add enforce_in_transit field in google_pubsub_topic

.changelog/12716.txt

@@ -0,0 +1,3 @@
+```release-note: enhancement
+pubsub: added `enforce_in_transit` fields to `google_pubsub_topic` resource
+```

google-beta/services/pubsub/resource_pubsub_topic.go

@@ -309,6 +309,14 @@ and is not a valid configuration.`,
 								Type: schema.TypeString,
 							},
 						},
+						"enforce_in_transit": {
+							Type:     schema.TypeBool,
+							Optional: true,
+							Description: `If true, 'allowedPersistenceRegions' is also used to enforce in-transit
+guarantees for messages. That is, Pub/Sub will fail topics.publish
+operations on this topic and subscribe operations on any subscription
+attached to this topic in any region that is not in 'allowedPersistenceRegions'.`,
+						},
 					},
 				},
 			},
@@ -819,12 +827,18 @@ func flattenPubsubTopicMessageStoragePolicy(v interface{}, d *schema.ResourceDat
 	transformed := make(map[string]interface{})
 	transformed["allowed_persistence_regions"] =
 		flattenPubsubTopicMessageStoragePolicyAllowedPersistenceRegions(original["allowedPersistenceRegions"], d, config)
+	transformed["enforce_in_transit"] =
+		flattenPubsubTopicMessageStoragePolicyEnforceInTransit(original["enforceInTransit"], d, config)
 	return []interface{}{transformed}
 }
 func flattenPubsubTopicMessageStoragePolicyAllowedPersistenceRegions(v interface{}, d *schema.ResourceData, config *transport_tpg.Config) interface{} {
 	return v
 }
 
+func flattenPubsubTopicMessageStoragePolicyEnforceInTransit(v interface{}, d *schema.ResourceData, config *transport_tpg.Config) interface{} {
+	return v
+}
+
 func flattenPubsubTopicSchemaSettings(v interface{}, d *schema.ResourceData, config *transport_tpg.Config) interface{} {
 	if v == nil {
 		return nil
@@ -1087,13 +1101,24 @@ func expandPubsubTopicMessageStoragePolicy(v interface{}, d tpgresource.Terrafor
 		transformed["allowedPersistenceRegions"] = transformedAllowedPersistenceRegions
 	}
 
+	transformedEnforceInTransit, err := expandPubsubTopicMessageStoragePolicyEnforceInTransit(original["enforce_in_transit"], d, config)
+	if err != nil {
+		return nil, err
+	} else if val := reflect.ValueOf(transformedEnforceInTransit); val.IsValid() && !tpgresource.IsEmptyValue(val) {
+		transformed["enforceInTransit"] = transformedEnforceInTransit
+	}
+
 	return transformed, nil
 }
 
 func expandPubsubTopicMessageStoragePolicyAllowedPersistenceRegions(v interface{}, d tpgresource.TerraformResourceData, config *transport_tpg.Config) (interface{}, error) {
 	return v, nil
 }
 
+func expandPubsubTopicMessageStoragePolicyEnforceInTransit(v interface{}, d tpgresource.TerraformResourceData, config *transport_tpg.Config) (interface{}, error) {
+	return v, nil
+}
+
 func expandPubsubTopicSchemaSettings(v interface{}, d tpgresource.TerraformResourceData, config *transport_tpg.Config) (interface{}, error) {
 	l := v.([]interface{})
 	if len(l) == 0 || l[0] == nil {

google-beta/services/pubsub/resource_pubsub_topic_generated_test.go

@@ -104,6 +104,7 @@ resource "google_pubsub_topic" "example" {
     allowed_persistence_regions = [
       "europe-west3",
     ]
+    enforce_in_transit = true
   }
 }
 `, context)

google-beta/services/pubsub/resource_pubsub_topic_test.go

@@ -232,6 +232,7 @@ resource "google_pubsub_topic" "foo" {
     allowed_persistence_regions = [
       "%s",
     ]
+    enforce_in_transit = false
   }
 }
 `, topic, key, value, region)

website/docs/r/pubsub_topic.html.markdown

@@ -85,6 +85,7 @@ resource "google_pubsub_topic" "example" {
     allowed_persistence_regions = [
       "europe-west3",
     ]
+    enforce_in_transit = true
   }
 }
 ```
@@ -257,6 +258,13 @@ The following arguments are supported:
   allowed regions. An empty list means that no regions are allowed,
   and is not a valid configuration.
 
+* `enforce_in_transit` -
+  (Optional)
+  If true, `allowedPersistenceRegions` is also used to enforce in-transit
+  guarantees for messages. That is, Pub/Sub will fail topics.publish
+  operations on this topic and subscribe operations on any subscription
+  attached to this topic in any region that is not in `allowedPersistenceRegions`.
+
 <a name="nested_schema_settings"></a>The `schema_settings` block supports:
 
 * `schema` -