feat: expose docker registry setting for project cleanup (#250)

Author: bharathkkb

modules/project_cleanup/README.md

@@ -31,6 +31,7 @@ The following services must be enabled on the project housing the cleanup functi
 | clean\_up\_org\_level\_cai\_feeds | Clean up organization level Cloud Asset Inventory Feeds. | `bool` | `false` | no |
 | clean\_up\_org\_level\_scc\_notifications | Clean up organization level Security Command Center notifications. | `bool` | `false` | no |
 | clean\_up\_org\_level\_tag\_keys | Clean up organization level Tag Keys. | `bool` | `false` | no |
+| function\_docker\_registry | Docker Registry to use for storing the function's Docker images. Allowed values are CONTAINER\_REGISTRY (default) and ARTIFACT\_REGISTRY. | `string` | `null` | no |
 | function\_timeout\_s | The amount of time in seconds allotted for the execution of the function. | `number` | `500` | no |
 | job\_schedule | Cleaner function run frequency, in cron syntax | `string` | `"*/5 * * * *"` | no |
 | list\_billing\_sinks\_page\_size | The maximum number of Billing Account Log Sinks to return in the call to `BillingAccountsSinksService.List` service. | `number` | `200` | no |

modules/project_cleanup/main.tf

@@ -59,6 +59,7 @@ module "scheduled_project_cleaner" {
   function_runtime               = "go121"
   function_service_account_email = google_service_account.project_cleaner_function.email
   function_timeout_s             = var.function_timeout_s
+  function_docker_registry       = var.function_docker_registry
 
   function_environment_variables = {
     TARGET_ORGANIZATION_ID            = var.organization_id

modules/project_cleanup/variables.tf

@@ -148,3 +148,9 @@ variable "target_folder_id" {
   description = "Folder ID to delete all projects under."
   default     = ""
 }
+
+variable "function_docker_registry" {
+  type        = string
+  default     = null
+  description = "Docker Registry to use for storing the function's Docker images. Allowed values are CONTAINER_REGISTRY (default) and ARTIFACT_REGISTRY."
+}