Debian build works; Manual LUKS passphrase entry still required

variables-common.pkr.hcl

@@ -9,3 +9,9 @@ variable "proxmox_skip_tls_verify" {
   default     = false
   description = "Whether to skip TLS verification for Proxmox API"
 }
+
+variable "source_proxmox_http_interface" {
+  type        = string
+  default     = "en18"
+  description = "The network interface to use for the Proxmox HTTP source"
+}