Clean up suggestions from code review

CHANGELOG.md

@@ -25,7 +25,6 @@ Extending the adopted spec, each change should have a link to its corresponding
 
 ## [1.1.0] - 2019-02-22
 ### ADDED
-- Added separate App Engine module. [#134]
 - Preconditions script checks billing account format. [#117]
 - Add project_services submodule. [#133]
 

README.md

@@ -10,9 +10,9 @@ access, Service Accounts, and API enablement to follow best practices.
 To include G Suite integration for creating groups and adding Service Accounts into groups, use the
 [gsuite_enabled module][gsuite-enabled-module].
 
-## Version
+## Upgrading
 
-Current version is 2.0. Upgrade guides:
+The current version is 2.X. The following guides are available to assist with upgrades:
 
 - [0.X -> 1.0](./docs/upgrading_to_project_factory_v1.0.md)
 - [1.X -> 2.0](./docs/upgrading_to_project_factory_v2.0.md)
@@ -370,4 +370,4 @@ versions][release-new-version].
 [terraform-provider-google-beta]: https://github.com/terraform-providers/terraform-provider-google-beta
 [terraform-provider-gsuite]: https://github.com/DeviaVir/terraform-provider-gsuite
 [glossary]: /docs/GLOSSARY.md
-[release-new-version]: https://www.terraform.io/docs/registry/modules/publish.html#releasing-new-versions
+[release-new-version]: https://www.terraform.io/docs/registry/modules/publish.html#releasing-new-versions

docs/upgrading_to_project_factory_v2.0.md

@@ -4,19 +4,14 @@ The v2.0 release of Project Factory is a backwards incompatible release. It only
 
 ## Migration Instructions
 
-### App Engine
+### App Engine Argument Changes
 
-These steps are only required if you are currently using the `app_engine` argument.
-
-#### App Engine Argument Changes
-
-The old version of project factory used a single field for configuring App Engine (`app_engine`):
+Version 1.X of Project Factory used the `app_engine` map variable to configure App Engine:
 
 ```hcl
 /// @file main.tf
-
 module "project-factory" {
-  ...
+  # ...
   app_engine {
     location_id = "${var.region}"
     auth_domain = "${var.domain}"
@@ -30,10 +25,13 @@ module "project-factory" {
 }
 ```
 
-The new version of project factory uses a new module named `app_engine`. It accepts
+Version 2.X of Project Factory uses a new module named `app_engine`:
 
 ```hcl
 /// @file main.tf
+module "project-factory" {
+  # ...
+}
 
 module "app-engine" {
   source  = "terraform-google-modules/project-factory/google//modules/app_engine"
@@ -51,12 +49,12 @@ module "app-engine" {
 }
 ```
 
-#### App Engine State Import
+### App Engine State Import
 
 The new implementation uses the `google_app_engine_application` resource which needs to be imported into the current state (make sure to replace `$YOUR_PROJECT_ID`):
 
 ```sh
-terraform import module.app-engine.google_app_engine_application.app $YOUR_PROJECT_ID
+terraform import module.app-engine.google_app_engine_application.main $YOUR_PROJECT_ID
 ```
 
 After importing, run `terraform` `plan` and `apply`.

modules/app_engine/main.tf

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-resource "google_app_engine_application" "app" {
+resource "google_app_engine_application" "main" {
   project          = "${var.project_id}"
   location_id      = "${var.location_id}"
   auth_domain      = "${var.auth_domain}"

modules/app_engine/outputs.tf

@@ -16,25 +16,25 @@
 
 output "name" {
   description = "Unique name of the app, usually apps/{PROJECT_ID}."
-  value       = "${google_app_engine_application.app.name}"
+  value       = "${google_app_engine_application.main.name}"
 }
 
 output "url_dispatch_rule" {
   description = "A list of dispatch rule blocks. Each block has a domain, path, and service field."
-  value       = "${google_app_engine_application.app.url_dispatch_rule}"
+  value       = "${google_app_engine_application.main.url_dispatch_rule}"
 }
 
 output "code_bucket" {
   description = "The GCS bucket code is being stored in for this app."
-  value       = "${google_app_engine_application.app.code_bucket}"
+  value       = "${google_app_engine_application.main.code_bucket}"
 }
 
 output "default_hostname" {
   description = "The default hostname for this app."
-  value       = "${google_app_engine_application.app.default_hostname}"
+  value       = "${google_app_engine_application.main.default_hostname}"
 }
 
 output "default_bucket" {
   description = "The GCS bucket content is being stored in for this app."
-  value       = "${google_app_engine_application.app.default_bucket}"
+  value       = "${google_app_engine_application.main.default_bucket}"
 }