Add Terraform

broker/setup_broker/terraform/README.md

@@ -0,0 +1,25 @@
+# Setup broker using Terraform
+
+## Organizational thoughts
+
+1. create .tf files: decide whether to do these per resource or per GCP service
+2. create Modules: one per component, plus one for the full broker
+
+## Links
+
+- [Terraform Modules](https://www.terraform.io/language/modules/develop)
+- [Terraform - Google Modules](https://github.com/terraform-google-modules)
+- [Terraform - Google reference](https://registry.terraform.io/providers/hashicorp/google/latest/docs/resources/pubsub_topic_iam#google_pubsub_topic_iam_member)
+- [Terraform - Cloud Functions reference](https://registry.terraform.io/providers/hashicorp/google/latest/docs/resources/cloudfunctions_function)
+
+## Create starter files
+
+Have gcloud crawl our project and create some starter files for us.
+
+```bash
+dir="broker/setup_broker/terraform/pitt-google-broker-prototype"
+
+gcloud beta resource-config bulk-export --project="${GOOGLE_CLOUD_PROJECT}" \
+    --resource-format=terraform \
+    --path="${dir}"
+```

broker/setup_broker/terraform/main.tf

@@ -0,0 +1,17 @@
+resource "google_pubsub_topic" "exgalac_trans" {
+  name    = "ztf-exgalac_trans-${var.suffix}"
+  project = var.project
+}
+
+resource "google_pubsub_topic_iam_member" "publisher" {
+  topic      = google_pubsub_topic.exgalac_trans.name
+  role       = "projects/sen-pittitops-komprise/roles/pubsub.topics.attachSubscription"
+  member     = "allUsers"
+  project    = google_pubsub_topic.exgalac_trans.project
+  depends_on = [google_pubsub_topic.exgalac_trans]
+}
+
+output "topic_name" {
+  value       = google_pubsub_topic.exgalac_trans.name
+  description = "Name of the created pub/sub topic"
+}

broker/setup_broker/terraform/providers.tf

@@ -0,0 +1,17 @@
+# ------------------------------------------------------------
+#   BACKEND BLOCK
+#   
+#   Bucket must exist before configuring the backend
+# ------------------------------------------------------------
+
+terraform {
+  backend "gcs" {
+    bucket = "gcs-tf-state-bucket"
+    prefix = "bucket/dir/prefix/"
+  }
+
+  required_providers {
+    google      = "~> 3.1"
+    google-beta = "~> 3.1"
+  }
+}

broker/setup_broker/terraform/variables.tf

@@ -0,0 +1,10 @@
+variable "suffix" {
+  description = "The pub/sub topic suffix"
+  type        = string
+  default     = "4242"
+}
+
+variable "project" {
+  description = "The project to deploy the pub/sub topic to"
+  type        = string
+}

broker/setup_broker/terraform/vars.tfvars

@@ -0,0 +1,2 @@
+suffix  = "11111"
+project = "sen-pittitops-komprise"