create snapshot image with packer

packer/talos_packer.pkr.hcl

@@ -0,0 +1,47 @@
+packer {
+  required_plugins {
+    hcloud = {
+      version = ">= 1.2"
+      source  = "github.com/hetznercloud/hcloud"
+    }
+  }
+}
+
+variable "talos_version" {
+  type    = string
+  default = "v1.8.3"
+}
+
+locals {
+  # link created with image factory: https://factory.talos.dev
+  # Cloud Server / 1.8.3 / Hetzner / <no extensions right now> / <no customizing>
+  image = "https://factory.talos.dev/image/376567988ad370138ad8b2698212367b8edcb69b5fd68c80be1f2ec7d603b4ba/v1.8.3/hcloud-amd64.raw.xz"
+}
+
+# smallest possible for building
+source "hcloud" "talos" {
+  rescue       = "linux64"
+  image        = "debian-11"
+  location     = "fsn1"
+  server_type  = "cx22"
+  ssh_username = "root"
+
+  snapshot_name = "talos system disk ${var.talos_version}"
+  snapshot_labels = {
+    type    = "infra",
+    os      = "talos",
+    version = "${var.talos_version}",
+  }
+}
+
+build {
+  sources = ["source.hcloud.talos"]
+
+  provisioner "shell" {
+    inline = [
+      "apt-get install -y wget xz-utils",
+      "wget -O /tmp/talos.raw.xz ${local.image}",
+      "xz -d -c /tmp/talos.raw.xz | dd of=/dev/sda && sync",
+    ]
+  }
+}