give grail a temp dir for downloads on intelssd

lxc/grail/main.tf

@@ -35,6 +35,12 @@ resource "proxmox_virtual_environment_container" "example_template" {
     path  = "/media"
   }
 
+  mount_point {
+    volume = var.datastore_id_download_tmp     # <- tertiary disk
+    size         = var.disk_size_gb_download_tmp     # in GB
+    path  = "/download_tmp"
+  }
+
   # ------------------------------------------------------------------
   # Mount points – uncomment and set if you need to mount a volume.
   # ------------------------------------------------------------------

lxc/grail/vars.tf

@@ -38,6 +38,16 @@ variable "disk_size_gb_media" {
   type    = string
   default = "10T"
 }
+
+variable "datastore_id_download_tmp" {
+  type    = string
+  default = "intelssd"
+}
+
+variable "disk_size_gb_download_tmp" {
+  type    = string
+  default = "500G"
+}
 # ---------------------------------------------------------------
 # Initialization specifics
 # ---------------------------------------------------------------