Add AzureEventGrid Infra

terraform/main.tf

@@ -213,6 +213,26 @@ module "azure_servicebus_namespace_alternative" {
   tags = local.tags
 }
 
+module "azure_servicebus_namespace_event_grid" {
+  source              = "./modules/azure/service-bus"
+  resource_group_name = var.azure_resource_group_name
+  unique_project_name = var.unique_project_name
+  service_bus_suffix  = "-event-grid"
+  service_bus_admin_identities = [
+    module.azuread_applications.identity_1
+  ]
+  tags = local.tags
+}
+
+module "azurerm_eventgrid_topic" {
+  source              = "./modules/azure/event-grid"
+  resource_group_name = var.azure_resource_group_name
+  unique_project_name = var.unique_project_name
+  service_bus_topic_id = module.azure_servicebus_namespace_event_grid.event_grid_receive_topic_id
+
+  tags = local.tags
+}
+
 module "azure_storage_account" {
   source              = "./modules/azure/storage-account"
   resource_group_name = var.azure_resource_group_name
@@ -378,6 +398,22 @@ module "github_secrets" {
       name  = "TF_AZURE_RABBIT_API_APPLICATION_ID"
       value = module.azure_rabbitmq_app_registration.application_id
     },
+    {
+      name  = "TF_AZURE_SERVICE_BUS_EVENTGRID_CONNECTION_STRING"
+      value = module.azure_servicebus_namespace_event_grid.connection_string
+    },
+    {
+      name  = "TF_AZURE_EVENT_GRID_ENDPOINT"
+      value = module.azurerm_eventgrid_topic.endpoint
+    },
+    {
+      name  = "TF_AZURE_EVENT_GRID_KEY"
+      value = module.azurerm_eventgrid_topic.key
+    },
+    {
+      name  = "TF_AZURE_SB_EVENT_GRID_RECEIVE_TOPIC"
+      value = module.azure_servicebus_namespace_event_grid.event_grid_receive_topic
+    },
   ]
 }
 

terraform/modules/azure/event-grid/main.tf

@@ -0,0 +1,37 @@
+provider "azurerm" {
+  features {}
+  skip_provider_registration = true
+}
+
+locals {
+  event_grid_name = "${var.unique_project_name}-e2e-event-grid"
+  event_grid_subscription_name = "${var.unique_project_name}-e2e-event-grid-subscription"
+}
+
+data "azurerm_resource_group" "rg" {
+  name = var.resource_group_name
+}
+
+resource "azurerm_eventgrid_topic" "eventgrid" {
+  name                = local.event_grid_name
+  location            = data.azurerm_resource_group.rg.location
+  resource_group_name = data.azurerm_resource_group.rg.name
+  input_schema = "CloudEventSchemaV1_0"
+
+  tags = var.tags
+}
+
+resource "azurerm_eventgrid_event_subscription" "eventsubscription" {
+  name  = local.event_grid_subscription_name
+  scope = azurerm_eventgrid_topic.eventgrid.id
+  event_delivery_schema = "CloudEventSchemaV1_0"
+
+  service_bus_topic_endpoint_id = var.service_bus_topic_id
+}
+
+resource "azurerm_role_assignment" "roles" {
+  count                = length(var.event_grid_admin_identities)
+  scope                = azurerm_eventgrid_topic.eventgrid.id
+  role_definition_name = "Azure Event Grid Owner"
+  principal_id         = var.event_grid_admin_identities[count.index].principal_id
+}

terraform/modules/azure/event-grid/outputs.tf

@@ -0,0 +1,7 @@
+output "endpoint" {
+  value = azurerm_eventgrid_topic.eventgrid.endpoint
+}
+
+output "key" {
+  value = azurerm_eventgrid_topic.eventgrid.primary_access_key
+}

terraform/modules/azure/event-grid/vars.tf

@@ -0,0 +1,25 @@
+variable "resource_group_name" {
+  type        = string
+  description = "Resource group name where event hub will be placed"
+}
+
+variable "unique_project_name" {
+  type        = string
+  description = "Value to make unique every resource name generated"
+}
+
+variable "service_bus_topic_id" {
+  type        = string
+  description = "Service bus topic to subscription events"
+}
+
+variable "tags" {
+  type        = map(any)
+  description = "Tags to apply on every resource"
+}
+
+variable "event_grid_admin_identities" {
+  type        = list(any)
+  description = "Azure Service Bus Data Owner identities"
+  default     = []
+}

terraform/modules/azure/service-bus/main.tf

@@ -6,6 +6,7 @@ provider "azurerm" {
 locals {
   service_bus_namespace_name     = "${var.unique_project_name}-e2e-servicebus-namespace${var.service_bus_suffix}"
   service_bus_authorization_rule = "${var.unique_project_name}-e2e-manage"
+  service_bus_topic_name = "${var.unique_project_name}-e2e-receive-event-grid-topic"
 }
 
 data "azurerm_resource_group" "rg" {
@@ -20,6 +21,11 @@ resource "azurerm_servicebus_namespace" "namespace" {
   tags                = var.tags
 }
 
+resource "azurerm_servicebus_topic" "topic" {
+  name         = local.service_bus_topic_name
+  namespace_id = azurerm_servicebus_namespace.namespace.id
+}
+
 resource "azurerm_servicebus_namespace_authorization_rule" "manage" {
   name         = local.service_bus_authorization_rule
   namespace_id = azurerm_servicebus_namespace.namespace.id

terraform/modules/azure/service-bus/outputs.tf

@@ -1,3 +1,11 @@
 output "connection_string" {
   value = azurerm_servicebus_namespace_authorization_rule.manage.primary_connection_string
+}
+
+output "event_grid_receive_topic_id" {
+  value = azurerm_servicebus_topic.topic.id
+}
+
+output "event_grid_receive_topic" {
+  value = azurerm_servicebus_topic.topic.name
 }