feat: Add Packer build automation scripts

- Added packer/variables.pkr.hcl with configurable variables
- Added build-template.sh with interactive build script
- Added .env.example for environment configuration
- Updated windows.pkr.hcl to use variables
- Supports environment variables and command line arguments

packer/windows.pkr.hcl

@@ -8,51 +8,52 @@ packer {
 }
 
 source "proxmox-iso" "windows-11" {
-  proxmox_url = "https://proxmox-host:8006/api2/json"
-  username    = "root@pam"
-  password    = "secret"
-  node        = "la-vmh-07"
+  proxmox_url = "${var.proxmox_url}"
+  username    = "${var.proxmox_username}"
+  password    = "${var.proxmox_password}"
+  node        = "${var.proxmox_node}"
 
-  vm_name      = "win11-ltsc-template"
+  vm_name      = "${var.vm_name}"
   template_description = "Built with Packer on ${timestamp()}"
-  iso_file     = "local:iso/CLIENT_LTSC_EVAL_x64FRE_en-us.iso"
+  iso_file     = "${var.iso_storage}:iso/${var.windows_iso}"
 
   qemu_agent   = true
-  cores        = 4
-  memory       = 8192
+  cores        = "${var.vm_cores}"
+  memory       = "${var.vm_memory}"
   machine      = "q35"
   bios         = "ovmf"
   efi_config {
-    efi_storage_pool = "local-lvm"
+    efi_storage_pool = "${var.disk_storage}"
     pre_enrolled_keys = true
   }
   tpm_config {
     version = "2.0"
-    tpm_storage_pool = "local-lvm"
+    tpm_storage_pool = "${var.disk_storage}"
   }
 
   scsi_controller = "virtio-scsi-pci"
   disks {
-    disk_size    = "60G"
-    storage_pool = "local-lvm"
+    disk_size    = "${var.vm_disk_size}"
+    storage_pool = "${var.disk_storage}"
     type         = "virtio"
     format       = "raw"
     cache_mode   = "writeback"
   }
+
   additional_iso_files {
-    device       = "sata1"
-    iso_file     = "local:iso/virtio-win.iso"
+    device   = "sata1"
+    iso_file = "${var.virtio_iso}"
   }
 
   communicator = "winrm"
   winrm_username = "Administrator"
-  winrm_password = "PackerPassword123!"
+  winrm_password = "${var.winrm_password}"
   winrm_insecure = true
   winrm_use_ssl  = true
 
   boot_command = [
-    "<wait><wait><wait>","<enter><wait>","<enter><wait>",
-    "<enter><wait>","<enter>"
+    "<wait><wait><wait>", "<enter><wait>", "<enter><wait>",
+    "<enter><wait>", "<enter>"
   ]
   boot_wait    = "10s"
 }