Add example of a Workload Identity Pool configuration for GitHub Actions

mmv1/templates/terraform/examples/iam_workload_identity_pool_provider_github_actions.tf.tmpl

@@ -0,0 +1,26 @@
+resource "google_iam_workload_identity_pool" "pool" {
+  workload_identity_pool_id = "{{index $.Vars "workload_identity_pool_id"}}"
+}
+
+resource "google_iam_workload_identity_pool_provider" "{{$.PrimaryResourceId}}" {
+  workload_identity_pool_id          = google_iam_workload_identity_pool.pool.workload_identity_pool_id
+  workload_identity_pool_provider_id = "{{index $.Vars "workload_identity_pool_provider_id"}}"
+  display_name                       = "Name of provider"
+  description                        = "GitHub Actions identity pool provider for automated test"
+  disabled                           = true
+  attribute_condition = <<EOT
+    assertion.repository_owner_id == "123456789" &&
+    attribute.repository == "gh-org/gh-repo" &&
+    assertion.ref == "refs/heads/main" &&
+    assertion.ref_type == "branch"
+EOT
+  attribute_mapping = {
+    "google.subject"       = "assertion.sub"
+    "attribute.actor"      = "assertion.actor"
+    "attribute.aud"        = "assertion.aud"
+    "attribute.repository" = "assertion.repository"
+  }
+  oidc {
+    issuer_uri = "https://token.actions.githubusercontent.com"
+  }
+}