Add terraform module

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

terraform/busch/modules/proxmox-vm/main.tf

@@ -0,0 +1,66 @@
+terraform {
+  required_providers {
+    proxmox = {
+      source  = "telmate/proxmox"
+      version = "3.0.2-rc07"
+    }
+  }
+}
+
+resource "proxmox_vm_qemu" "truenas" {
+  name               = var.name
+  description        = var.description
+  target_node        = var.target_node
+  vmid               = var.vmid
+  machine            = length(var.mapped_pcie_devices) == 0 ? "pc" : "q35"
+  memory             = var.memory
+  balloon            = 1024
+  scsihw             = "virtio-scsi-pci"
+  boot               = "order=scsi0;ide0"
+  start_at_node_boot = true
+
+  cpu {
+    cores   = var.cpu_cores
+    sockets = 1
+  }
+
+  disks {
+    scsi {
+      scsi0 {
+        disk {
+          storage = var.disk_storage
+          size    = var.disk_size
+        }
+      }
+    }
+    ide {
+      ide0 {
+        cdrom {
+          iso = var.iso_path
+        }
+      }
+    }
+  }
+
+  network {
+    id     = 0
+    bridge = "vmbr0"
+    model  = "virtio"
+  }
+
+  dynamic "pci" {
+    for_each = { for device in var.mapped_pcie_devices : index(var.mapped_pcie_devices, device) => device }
+
+    content {
+      id         = pci.key
+      mapping_id = pci.value
+      pcie       = true
+    }
+  }
+
+  startup_shutdown {
+    order         = var.startup_order
+    startup_delay = var.startup_delay
+  }
+
+}