parameterize memory

debian/main.tf

@@ -22,4 +22,5 @@ module "tf_debian_vm" {
   cloudinit_pool        = coalesce(var.cloudinit_pool, module.invariants.cloudinit_pool)
   bridge_name           = coalesce(var.bridge_name, module.invariants.bridge_name)
   ca_host               = coalesce(var.ca_host, module.invariants.ca_host)
+  memory                = coalesce(var.memory, 1024)
 }

debian/variables.tf

@@ -46,3 +46,8 @@ variable "ca_host" {
   type    = string
   default = null
 }
+
+variable "memory" {
+  type    = number
+  default = null
+}