fix

modules/forward/variables.tf

@@ -13,13 +13,13 @@ variable "domain" {
 variable "namespace" {
   type        = string
 }
-variable "ingress-class" {
+variable "ingress_class" {
   type        = string
 }
 variable "labels" {
   type        = map(string)
 }
-variable "dns-names" {
+variable "dns_names" {
   type        = list(string)
 }
 variable "access-token-validity" {