Add packer file

image.pkr.hcl

@@ -0,0 +1,41 @@
+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"
+  }
+}
+