Any interest to create box with 2 hdd?

[rubisher]

Describe the Enhancement

Looking to create a custom vagrant box with 2 hdd.

Describe the Need

To be able to create an Ansible lab with VM like in our prod ;)

Current Alternative

The alternate stand in a cutom vboxmanage var like:

vboxmanage = [
    [
      "createmedium", "disk",
      "--format", "VDI",
      "--filename", "disk_02.vdi",
      "--size", "69632",
    ],
    [
      "storageattach", "{{.Name}}",
      "--storagectl", "SATA Controller",
      "--port", "1", "--type", "hdd",
      "--medium", "disk_02.vdi",
    ]
  ] 

but 'packer' is able to manage more efficiently (imho)?

Can We Help You Implement This

I just have to add a new var definition like:

$ diff -Nau ./packer_templates/pkr-variables.pkr.hcl.orig ./packer_templates/pkr-variables.pkr.hcl
--- ./packer_templates/pkr-variables.pkr.hcl.orig	2023-08-13 10:00:17.961302325 +0000
+++ ./packer_templates/pkr-variables.pkr.hcl	2023-08-13 09:52:40.861863424 +0000
@@ -146,6 +146,10 @@
   default     = null
   description = "OS type for virtualization optimization"
 }
+variable "vbox_disk_additional_size" {
+  type    = list(number)
+  default = null
+}
 variable "vbox_hard_drive_interface" {
   type    = string
   default = "sata"

to be able to add it to the 'source "virtualbox-iso" "vm" ' like:

$ diff -Nau ./packer_templates/pkr-sources.pkr.hcl.orig ./packer_templates/pkr-sources.pkr.hcl
--- ./packer_templates/pkr-sources.pkr.hcl.orig	2023-08-13 10:01:10.383063531 +0000
+++ ./packer_templates/pkr-sources.pkr.hcl	2023-08-13 21:40:09.252571972 +0000
@@ -221,6 +221,7 @@
   boot_wait        = local.boot_wait
   cpus             = var.cpus
   communicator     = local.communicator
+  disk_additional_size = var.vbox_disk_additional_size == null ? [] : var.vbox_disk_additional_size
   disk_size        = var.disk_size
   floppy_files     = local.floppy_files
   headless         = var.headless

and also add its requirement in a custome os_pkrvars/centos/rudy-centos-7-x86_64.pkrvars.hcl:
vbox_disk_additional_size = [ 69632 ]

After a quick run, it seems that the box contains well the 2 virtual disks I wanted:

$ tar -tlpvf ./packer_templates/../builds/centos-7.9-x86_64.virtualbox.box
-rw-r--r-- jlst/sysadmins  258 2023-08-13 10:09 Vagrantfile
-rw-r--r-- jlst/sysadmins 7722 2023-08-13 10:09 box.ovf
-rw-r--r-- jlst/sysadmins 469114880 2023-08-13 10:09 centos-7.9-amd64-disk001.vmdk
-rw-r--r-- jlst/sysadmins     76288 2023-08-13 10:09 centos-7.9-amd64-disk002.vmdk
-rw-r--r-- jlst/sysadmins        26 2023-08-13 10:09 metadata.json

PS: I think that we would need different var for each type of VM tool (not sure but qm would need a list(string)?)

Take care,
Rudy

[Stromweld]

Adding the feature doesn't hurt anything so I'm open to PR's to help implement. We won't be modifying the default OS templates and publishing them with multiple drives to the bento vagrant hub account though. Those boxes are meant to be simple install for temporary testing purposes.