terraform proxmox: Make balloon size configurable

terraform/busch/main.tf

@@ -21,6 +21,7 @@ module "truenas" {
   target_node   = "busch"
   vmid          = 100
   memory        = 8192
+  balloon       = 8192
   cpu_cores     = 2
   disk_storage  = "local"
   disk_size     = "32G"

terraform/busch/modules/proxmox-vm/main.tf

@@ -14,7 +14,7 @@ resource "proxmox_vm_qemu" "truenas" {
   vmid               = var.vmid
   machine            = length(var.mapped_pcie_devices) == 0 ? "pc" : "q35"
   memory             = var.memory
-  balloon            = 1024
+  balloon            = var.balloon
   scsihw             = "virtio-scsi-pci"
   boot               = "order=scsi0;ide0"
   start_at_node_boot = true

terraform/busch/modules/proxmox-vm/variables.tf

@@ -21,10 +21,16 @@ variable "target_node" {
 }
 
 variable "memory" {
-  description = "Memory to allocate for the VM"
+  description = "Memory to allocate for the VM in Megabytes"
   type        = string
 }
 
+variable "balloon" {
+  description = "The minimum amount of memory to allocate to the VM in Megabytes"
+  type        = number
+  default     = 1024
+}
+
 variable "cpu_cores" {
   description = "Number of CPU cores to allocate for the VM"
   type        = number