Adding new samples for PubSub with Cloud Run tutorials (#6126) (#11930)

* feat: add in samples for pubsub tutorials for cloud run

refactor: switching to erb

* Update mmv1/templates/terraform/examples/cloud_run_service_pubsub.tf.erb

Co-authored-by: Stephen Lewis (Burrows) <[email protected]>

* Update mmv1/templates/terraform/examples/cloud_run_service_pubsub.tf.erb

Co-authored-by: Stephen Lewis (Burrows) <[email protected]>

* Update mmv1/templates/terraform/examples/cloud_run_service_pubsub.tf.erb

Co-authored-by: Stephen Lewis (Burrows) <[email protected]>

* Update mmv1/templates/terraform/examples/cloud_run_service_pubsub.tf.erb

Co-authored-by: Stephen Lewis (Burrows) <[email protected]>

* refactor: remove extra cloud pubsub vars

* Update mmv1/templates/terraform/examples/cloud_run_service_pubsub.tf.erb

Co-authored-by: Stephen Lewis (Burrows) <[email protected]>

* Update mmv1/templates/terraform/examples/cloud_run_service_pubsub.tf.erb

Co-authored-by: Stephen Lewis (Burrows) <[email protected]>

Co-authored-by: Stephen Lewis (Burrows) <[email protected]>
Signed-off-by: Modular Magician <[email protected]>

Co-authored-by: Stephen Lewis (Burrows) <[email protected]>

Author: modular-magician

.changelog/6126.txt

@@ -0,0 +1,3 @@
+```release-note:enhancement
+google_cloud_run_service: added samples for pubsub tutorials
+```

website/docs/r/cloud_run_service.html.markdown

@@ -48,6 +48,61 @@ To get more information about Service, see:
 a Cloud Run Service on Anthos(GKE/VMWare) then you will need to create it using the kubernetes alpha provider.
 Have a look at the Cloud Run Anthos example below.
 
+## Example Usage - Cloud Run Service Pubsub
+
+
+```hcl
+resource "google_cloud_run_service" "default" {
+    name     = "cloud_run_service_name"
+    location = "us-central1"
+    template {
+      spec {
+            containers {
+                image = "gcr.io/cloudrun/hello"
+            }
+      }
+    }
+    traffic {
+      percent         = 100
+      latest_revision = true
+    }
+}
+
+resource "google_service_account" "sa" {
+  account_id   = "cloud-run-pubsub-invoker"
+  display_name = "Cloud Run Pub/Sub Invoker"
+}
+
+resource "google_cloud_run_service_iam_binding" "binding" {
+  location = google_cloud_run_service.default.location
+  service = google_cloud_run_service.default.name
+  role = "roles/run.invoker"
+  members = ["serviceAccount:${google_service_account.sa.email}"]
+}
+
+resource "google_project_iam_binding" "project" {
+  role    = "roles/iam.serviceAccountTokenCreator"
+  members = ["serviceAccount:${google_service_account.sa.email}"]
+}
+
+resource "google_pubsub_topic" "topic" {
+  name = "pubsub_topic"
+}
+
+resource "google_pubsub_subscription" "subscription" {
+  name  = "pubsub_subscription"
+  topic = google_pubsub_topic.topic.name
+  push_config {
+    push_endpoint = google_cloud_run_service.default.status[0].url
+    oidc_token {
+      service_account_email = google_service_account.sa.email
+    }
+    attributes = {
+      x-goog-version = "v1"
+    }
+  }
+}
+```
 ## Example Usage - Cloud Run Service Basic