From 0fba681bca855404cd9293459ba15b02b27ab7b5 Mon Sep 17 00:00:00 2001
From: Modular Magician <magic-modules@google.com>
Date: Thu, 13 Mar 2025 02:09:30 +0000
Subject: [PATCH] Add bac to backend service (#13213)

[upstream:44c0fbbe310f66f882559003800b1dcf554b6a96]

Signed-off-by: Modular Magician <magic-modules@google.com>
---
 backend_service_tls_settings/backing_file.tf | 15 ++++
 backend_service_tls_settings/main.tf         | 30 ++++++++
 backend_service_tls_settings/motd            |  7 ++
 backend_service_tls_settings/tutorial.md     | 79 ++++++++++++++++++++
 4 files changed, 131 insertions(+)
 create mode 100644 backend_service_tls_settings/backing_file.tf
 create mode 100644 backend_service_tls_settings/main.tf
 create mode 100644 backend_service_tls_settings/motd
 create mode 100644 backend_service_tls_settings/tutorial.md

diff --git a/backend_service_tls_settings/backing_file.tf b/backend_service_tls_settings/backing_file.tf
new file mode 100644
index 00000000..c60b1199
--- /dev/null
+++ b/backend_service_tls_settings/backing_file.tf
@@ -0,0 +1,15 @@
+# This file has some scaffolding to make sure that names are unique and that
+# a region and zone are selected when you try to create your Terraform resources.
+
+locals {
+  name_suffix = "${random_pet.suffix.id}"
+}
+
+resource "random_pet" "suffix" {
+  length = 2
+}
+
+provider "google" {
+  region = "us-central1"
+  zone   = "us-central1-c"
+}
diff --git a/backend_service_tls_settings/main.tf b/backend_service_tls_settings/main.tf
new file mode 100644
index 00000000..244d5ec6
--- /dev/null
+++ b/backend_service_tls_settings/main.tf
@@ -0,0 +1,30 @@
+resource "google_compute_backend_service" "default" {
+  name          = "backend-service-${local.name_suffix}"
+  health_checks = [google_compute_health_check.default.id]
+  load_balancing_scheme = "EXTERNAL_MANAGED"
+  protocol = "HTTPS"
+  tls_settings {
+    sni = "example.com"
+    subjectAltNames = [
+      {
+        dns_name = "example.com"
+      },
+      {
+        uniform_resource_identifier = "https://example.com"
+      }
+    ]
+    authentication_config = [google_network_security_backend_authentication_config.default.id]
+  }
+}
+
+resource "google_compute_health_check" "default" {
+  name = "health-check-${local.name_suffix}"
+  http_health_check {
+    port = 80
+  }
+}
+
+resource "google_network_security_backend_authentication_config" "default" {
+  name             = "authentication-${local.name_suffix}"
+  well_known_roots = "PUBLIC_ROOTS"
+}
diff --git a/backend_service_tls_settings/motd b/backend_service_tls_settings/motd
new file mode 100644
index 00000000..45a906e8
--- /dev/null
+++ b/backend_service_tls_settings/motd
@@ -0,0 +1,7 @@
+===
+
+These examples use real resources that will be billed to the
+Google Cloud Platform project you use - so make sure that you
+run "terraform destroy" before quitting!
+
+===
diff --git a/backend_service_tls_settings/tutorial.md b/backend_service_tls_settings/tutorial.md
new file mode 100644
index 00000000..e40c3e78
--- /dev/null
+++ b/backend_service_tls_settings/tutorial.md
@@ -0,0 +1,79 @@
+# Backend Service Tls Settings - Terraform
+
+## Setup
+
+<walkthrough-author name="rileykarson@google.com" analyticsId="UA-125550242-1" tutorialName="backend_service_tls_settings" repositoryUrl="https://github.com/terraform-google-modules/docs-examples"></walkthrough-author>
+
+Welcome to Terraform in Google Cloud Shell! We need you to let us know what project you'd like to use with Terraform.
+
+<walkthrough-project-billing-setup></walkthrough-project-billing-setup>
+
+Terraform provisions real GCP resources, so anything you create in this session will be billed against this project.
+
+## Terraforming!
+
+Let's use {{project-id}} with Terraform! Click the Cloud Shell icon below to copy the command
+to your shell, and then run it from the shell by pressing Enter/Return. Terraform will pick up
+the project name from the environment variable.
+
+```bash
+export GOOGLE_CLOUD_PROJECT={{project-id}}
+```
+
+After that, let's get Terraform started. Run the following to pull in the providers.
+
+```bash
+terraform init
+```
+
+With the providers downloaded and a project set, you're ready to use Terraform. Go ahead!
+
+```bash
+terraform apply
+```
+
+Terraform will show you what it plans to do, and prompt you to accept. Type "yes" to accept the plan.
+
+```bash
+yes
+```
+
+
+## Post-Apply
+
+### Editing your config
+
+Now you've provisioned your resources in GCP! If you run a "plan", you should see no changes needed.
+
+```bash
+terraform plan
+```
+
+So let's make a change! Try editing a number, or appending a value to the name in the editor. Then,
+run a 'plan' again.
+
+```bash
+terraform plan
+```
+
+Afterwards you can run an apply, which implicitly does a plan and shows you the intended changes
+at the 'yes' prompt.
+
+```bash
+terraform apply
+```
+
+```bash
+yes
+```
+
+## Cleanup
+
+Run the following to remove the resources Terraform provisioned:
+
+```bash
+terraform destroy
+```
+```bash
+yes
+```