[ubuntu24] feat: restructured packer file and added comments

ubuntu24/packer.pkr.hcl

@@ -1,12 +1,15 @@
+# packer
 packer {
   required_plugins {
     proxmox = {
-      version = ">=1.1.7"
+      version = ">=1.1.8"
       source  = "github.com/hashicorp/proxmox"
     }
   }
 }
 
+
+# variables
 variable "proxmox_iso_pool" {
   type    = string
   default = ""
@@ -77,23 +80,35 @@ variable "version" {
   default = ""
 }
 
+
+# builder
 source "proxmox-iso" "template" {
+
+  # boot
   boot_command = ["c", "linux /casper/vmlinuz -- autoinstall ds='nocloud-net;s=http://{{ .HTTPIP }}:{{ .HTTPPort }}/'", "<enter><wait><wait>", "initrd /casper/initrd", "<enter><wait><wait>", "boot<enter>"]
   boot_wait    = "10s"
-  cores        = "2"
+
+  # specs
+  cores  = "2"
+  memory = "2048"
+
+  # storage
   disks {
     disk_size         = "20G"
     format            = "${var.proxmox_storage_format}"
     storage_pool      = "${var.proxmox_storage_pool}"
     type              = "virtio"
   }
-  http_directory           = "ubuntu24/http"
-  insecure_skip_tls_verify = true
-  iso_file                 = "${var.proxmox_iso_pool}/${var.ubuntu_image}"
-  memory                   = "2048"
+
+  # networking
   network_adapters {
     bridge = "vmbr0"
   }
+
+  # misc
+  http_directory           = "ubuntu24/http"
+  insecure_skip_tls_verify = true
+  iso_file                 = "${var.proxmox_iso_pool}/${var.ubuntu_image}"
   node                 = "${var.proxmox_node}"
   vm_id                = "999"
   tags                 = "mgmt"