packer {
  required_version = ">= 1.8.3"
  required_plugins {
    hcloud = {
      version = ">= 1.0.0"
      source  = "github.com/hashicorp/hcloud"
    }
  }
}

locals {
  data_source_content = templatefile("${abspath(path.root)}/data/init.ks.pkrtpl.hcl", {
    build_password_encrypted        = var.build_password_encrypted
    vm_guest_os_language            = var.vm_guest_os_language
    vm_guest_os_keyboard            = var.vm_guest_os_keyboard
    vm_guest_os_timezone            = var.vm_guest_os_timezone
    hcloud_mirror                   = var.hcloud_mirror
    files_hcloud_metadata           = file("${abspath(path.root)}/data/files/hcloud-metadata")
    files_hcloud_ssh_keys_service   = file("${abspath(path.root)}/data/files/hcloud-ssh-keys.service")
    files_hetznercloud_default_init = file("${abspath(path.root)}/data/files/90-hetznercloud.cfg")
    files_hetznercloud_ds_init      = file("${abspath(path.root)}/data/files/92-hetznercloud-ds.cfg")
    files_hetznercloud_init         = file("${abspath(path.root)}/data/files/93-hetznercloud.cfg")
  })
  build_id = "${uuidv4()}"
  build_labels = {
    "os"                   = "rockylinux"
    "os/release"           = "9"
    "packer.io/build.time" = "{{ timestamp }}"
    "packer.io/build.id"   = "${local.build_id}"
    "packer.io/version"    = "{{ packer_version }}"
  }
}
source "hcloud" "rocky-linux-9" {
  // Hetzner Cloud Settings
  image  = "rocky-9"
  rescue = "linux64"
  token  = "${var.hcloud_token}"

  // Virtual Machine Settings
  location    = "${var.hcloud_location}"
  server_type = "${var.hcloud_server_type}"
  server_name = "${var.hcloud_server_name}"

  // Communicator Settings and Credentials
  ssh_username            = "root"
  temporary_key_pair_type = "ed25519"

  snapshot_name   = "${var.hcloud_snapshot_name}-{{ timestamp }}"
  snapshot_labels = local.build_labels
}

build {
  sources = ["source.hcloud.rocky-linux-9"]

  provisioner "file" {
    destination = "/root/ks.cfg"
    content     = "${local.data_source_content}"
  }

  provisioner "file" {
    destination = "/root/prepare-kickstart.sh"
    content     = "${local.data_source_content}"
  }

  provisioner "shell" {
    scripts             = formatlist("${path.cwd}/%s", var.build_scripts)
    remote_folder       = "/root"
    start_retry_timeout = "15m"
    expect_disconnect   = true
    environment_vars = [
      "BUILD_MIRROR=${var.hcloud_mirror}",
    ]
  }
}