Make Backend Service Custom Metrics tests available in ga (#13274) (#939)

[upstream:38449e2c5533dd6bce0dbf9b0794b115cc57309f]

Signed-off-by: Modular Magician <magic-modules@google.com>

Author: modular-magician

backend_service_custom_metrics/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"
+}

backend_service_custom_metrics/main.tf

@@ -0,0 +1,50 @@
+resource "google_compute_network" "default" {
+  name                    = "network-${local.name_suffix}"
+}
+
+// Zonal NEG with GCE_VM_IP_PORT
+resource "google_compute_network_endpoint_group" "default" {
+  name                  = "network-endpoint-${local.name_suffix}"
+  network               = google_compute_network.default.id
+  default_port          = "90"
+  zone                  = "us-central1-a"
+  network_endpoint_type = "GCE_VM_IP_PORT"
+}
+
+resource "google_compute_backend_service" "default" {
+  name                  = "backend-service-${local.name_suffix}"
+  health_checks = [google_compute_health_check.default.id]
+
+  # WEIGHTED_ROUND_ROBIN and CUSTOM_METRICS require EXTERNAL_MANAGED.
+  load_balancing_scheme = "EXTERNAL_MANAGED"
+  locality_lb_policy    = "WEIGHTED_ROUND_ROBIN"
+  custom_metrics {
+    name    = "orca.application_utilization"
+    # At least one metric should be not dry_run.
+    dry_run = false
+  }
+  backend {
+    group = google_compute_network_endpoint_group.default.id
+    balancing_mode = "CUSTOM_METRICS"
+    custom_metrics {
+      name    = "orca.cpu_utilization"
+      max_utilization = 0.9
+      dry_run = true
+    }
+    custom_metrics {
+      name    = "orca.named_metrics.foo"
+      # At least one metric should be not dry_run.
+      dry_run = false
+    }
+  }
+}
+
+resource "google_compute_health_check" "default" {
+  name               = "health-check-${local.name_suffix}"
+  timeout_sec        = 1
+  check_interval_sec = 1
+
+  tcp_health_check {
+    port = "80"
+  }
+}

backend_service_custom_metrics/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!
+
+===

backend_service_custom_metrics/tutorial.md

@@ -0,0 +1,79 @@
+# Backend Service Custom Metrics - Terraform
+
+## Setup
+
+<walkthrough-author name="rileykarson@google.com" analyticsId="UA-125550242-1" tutorialName="backend_service_custom_metrics" 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
+```

region_backend_service_ilb_custom_metrics/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"
+}

region_backend_service_ilb_custom_metrics/main.tf

@@ -0,0 +1,46 @@
+resource "google_compute_network" "default" {
+  name                    = "network-${local.name_suffix}"
+}
+
+// Zonal NEG with GCE_VM_IP_PORT
+resource "google_compute_network_endpoint_group" "default" {
+  name                  = "network-endpoint-${local.name_suffix}"
+  network               = google_compute_network.default.id
+  default_port          = "90"
+  zone                  = "us-central1-a"
+  network_endpoint_type = "GCE_VM_IP_PORT"
+}
+
+resource "google_compute_region_backend_service" "default" {
+  region = "us-central1"
+  name = "region-service-${local.name_suffix}"
+  health_checks = [google_compute_health_check.health_check.id]
+  load_balancing_scheme = "INTERNAL_MANAGED"
+  locality_lb_policy    = "WEIGHTED_ROUND_ROBIN"
+  custom_metrics {
+    name    = "orca.application_utilization"
+    # At least one metric should be not dry_run.
+    dry_run = false
+  }
+  backend {
+    group = google_compute_network_endpoint_group.default.id
+    balancing_mode = "CUSTOM_METRICS"
+    custom_metrics {
+      name    = "orca.cpu_utilization"
+      max_utilization = 0.9
+      dry_run = true
+    }
+    custom_metrics {
+      name    = "orca.named_metrics.foo"
+      # At least one metric should be not dry_run.
+      dry_run = false
+    }
+  }
+}
+
+resource "google_compute_health_check" "health_check" {
+  name               = "rbs-health-check-${local.name_suffix}"
+  http_health_check {
+    port = 80
+  }
+}

region_backend_service_ilb_custom_metrics/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!
+
+===

region_backend_service_ilb_custom_metrics/tutorial.md

@@ -0,0 +1,79 @@
+# Region Backend Service Ilb Custom Metrics - Terraform
+
+## Setup
+
+<walkthrough-author name="rileykarson@google.com" analyticsId="UA-125550242-1" tutorialName="region_backend_service_ilb_custom_metrics" 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
+```