Allow configuring project key format in project factory (#3154)

* Configurable project key in project-factory module

* Configurable project key in project-factory module

* add tests

modules/project-factory/factory-projects.tf

@@ -31,10 +31,15 @@ locals {
     for f in try(fileset(local._project_path, "**/*.yaml"), []) :
     trimsuffix(f, ".yaml") => yamldecode(file("${local._project_path}/${f}"))
   }
-  _projects_input = merge(
-    local._hierarchy_projects_full_path,
-    local._projects_full_path
-  )
+  _projects_input = {
+    for k, v in merge(
+      local._hierarchy_projects_full_path, local._projects_full_path
+      ) : (
+      var.factories_config.projects_config.key_ignores_path == true
+      ? basename(k)
+      : k
+    ) => v
+  }
   _project_budgets = flatten([
     for k, v in local._projects_input : [
       for b in try(v.billing_budgets, []) : {
@@ -48,9 +53,13 @@ locals {
     data_defaults  = var.data_defaults
   }
   projects = {
-    for k, v in local._projects_output : k => merge({
-      buckets          = try(v.buckets, {})
-      service_accounts = try(v.service_accounts, {})
+    for k, v in local._projects_output : (
+      var.factories_config.projects_config.key_ignores_path == true
+      ? basename(k)
+      : k
+      ) => merge({
+        buckets          = try(v.buckets, {})
+        service_accounts = try(v.service_accounts, {})
     }, v)
   }
   project_budgets = {

modules/project-factory/variables.tf

@@ -131,6 +131,8 @@ variable "data_overrides" {
 variable "factories_config" {
   description = "Path to folder with YAML resource description data files."
   type = object({
+    folders_data_path  = optional(string)
+    projects_data_path = optional(string)
     budgets = optional(object({
       billing_account   = string
       budgets_data_path = string
@@ -146,8 +148,9 @@ variable "factories_config" {
       vpc_host_projects     = optional(map(string), {})
       notification_channels = optional(map(string), {})
     }), {})
-    folders_data_path  = optional(string)
-    projects_data_path = optional(string)
+    projects_config = optional(object({
+      key_ignores_path = optional(bool, false)
+    }), {})
   })
   nullable = false
 }