Adde a few changes

terraform/modules/apps/wol_proxy/variables.tf

@@ -0,0 +1,32 @@
+variable "upstream" {
+  description = "Configuration for the upstream proxy"
+  type = object({
+    mac     = optional(string, "")
+    ip      = optional(string, "")
+    port    = optional(string, "")
+    scheme  = optional(string, "http")
+  })
+}
+
+# variable "fqdn" {
+#   description = "The fully qualified domain name for the app server"
+#   type        = string
+# }
+
+variable "tag" {
+  description = "The version of app to install"
+  type        = string
+  default     = "v0.4.0"
+}
+
+variable "namespace" {
+  description = "The namespace for the proxy"
+  type        = string
+  default     = "wol-proxy"
+}
+
+variable "proxy_port" {
+  description = "The port on which the proxy will listen"
+  type        = number
+  default     = 8080
+}