packer {
  required_plugins {
    virtualbox = {
      version = ">= 1.0.0"
      source  = "github.com/hashicorp/virtualbox"
    }
  }
}

variable "disk_size" {
  type    = string
  default = "20480" # 20 GB in MB
}

source "virtualbox-iso" "ubuntu" {
  iso_url            = "https://releases.ubuntu.com/22.04/ubuntu-22.04-live-server-amd64.iso"
  iso_checksum       = "SHA256:...fill_in_checksum..."
  ssh_username       = "vagrant"
  ssh_password       = "vagrant"
  ssh_wait_timeout   = "20m"
  disk_size          = var.disk_size
  guest_os_type      = "Ubuntu_64"
  vm_name            = "packer-ubuntu"
}

build {
  name    = "ubuntu20-vagrant"
  sources = ["source.virtualbox-iso.ubuntu"]

  provisioner "shell" {
    inline = [
      "sudo apt-get update",
      "sudo apt-get install -y vim git curl"
    ]
  }

  post-processor "vagrant" {
    output = "ubuntu20-vagrant.box"
  }
}