modularize tf infrastructure

tofu/service-vm/main.tf

@@ -0,0 +1,62 @@
+terraform {
+  required_providers {
+    libvirt = {
+      source = "dmacvicar/libvirt"
+      version = "0.7.6"
+    }
+  }
+}
+
+resource "libvirt_volume" "rootfs" {
+  name           = "${var.domain_name}-rootfs.qcow2"
+  pool           = var.domain_pool
+  base_volume_id = var.domain_base_volume_id
+}
+
+resource "libvirt_volume" "data" {
+  name   = "${var.domain_name}-data.qcow2"
+  pool   = var.domain_pool
+  size   = var.domain_data_volume_size
+  format = "qcow2"
+
+  lifecycle {
+    prevent_destroy = true
+  }
+}
+
+resource "libvirt_ignition" "ign" {
+  name    = "${var.domain_name}-service.ign"
+  pool    = var.domain_pool
+  content = "${var.domain_ignition_path}"
+}
+
+resource "libvirt_domain" "service" {
+  name      = var.domain_name
+  autostart = true
+  memory    = var.domain_memory
+  vcpu      = var.domain_vcpu
+
+  coreos_ignition = libvirt_ignition.ign.id
+
+  disk {
+    volume_id = libvirt_volume.rootfs.id
+  }
+  disk {
+    volume_id = libvirt_volume.data.id
+  }
+  network_interface {
+    network_id     = var.domain_network.network_id
+    hostname       = var.domain_network.hostname
+    addresses      = var.domain_network.addresses
+    mac            = var.domain_network.mac_address
+    wait_for_lease = true
+  }
+  console {
+    type        = "pty"
+    target_port = "0"
+    target_type = "serial"
+  }
+  graphics {
+    type  = "spice"
+  }
+}

tofu/service-vm/variables.tf

@@ -0,0 +1,38 @@
+variable "domain_name" {
+  type = string
+}
+
+variable "domain_memory" {
+  type = string
+  default = "2048"
+}
+
+variable "domain_vcpu" {
+  type = number
+  default = 1
+}
+
+variable "domain_pool" {
+  type = string
+}
+
+variable "domain_base_volume_id" {
+  type = string
+}
+
+variable "domain_data_volume_size" {
+  type = number
+}
+
+variable "domain_ignition_path" {
+  type = string
+}
+
+variable "domain_network" {
+  type = object({
+    network_id = string
+    hostname = string
+    addresses = list(string)
+    mac_address = string
+  })
+}