Add terraform module

Terraform is used to manage the VMs on the Proxmox host `busch`.

terraform/busch/main.tf

@@ -0,0 +1,46 @@
+terraform {
+  required_providers {
+    proxmox = {
+      source  = "telmate/proxmox"
+      version = "3.0.2-rc07"
+    }
+  }
+}
+
+provider "proxmox" {
+  pm_api_url          = var.proxmox_api_url
+  pm_api_token_id     = var.proxmox_token_id
+  pm_api_token_secret = var.proxmox_token_secret
+  pm_tls_insecure     = true
+}
+
+module "truenas" {
+  source = "./modules/proxmox-vm"
+
+  name          = "truenas"
+  target_node   = "busch"
+  vmid          = 100
+  memory        = 8192
+  cpu_cores     = 2
+  disk_storage  = "local"
+  disk_size     = "32G"
+  iso_path      = "local:iso/TrueNAS-SCALE-25.10.2.1.iso"
+  startup_order = 1
+
+  mapped_pcie_devices = ["HBA"]
+}
+
+module "nixos-docker" {
+  source = "./modules/proxmox-vm"
+
+  name          = "nixos-docker"
+  target_node   = "busch"
+  vmid          = 101
+  memory        = 4096
+  cpu_cores     = 2
+  disk_storage  = "truenas-lvm"
+  disk_size     = "64G"
+  iso_path      = "local:iso/latest-nixos-minimal-x86_64-linux.iso"
+  startup_order = 2
+  startup_delay = 240
+}