terraform template libvirt

Signed-off-by: Malte Poll <mp@edgeless.systems>

terraform/libvirt/modules/instance_group/main.tf

@@ -0,0 +1,72 @@
+terraform {
+  required_providers {
+    libvirt = {
+      source  = "dmacvicar/libvirt"
+      version = "0.6.14"
+    }
+  }
+}
+
+locals {
+  state_disk_size_byte = 1073741824 * var.state_disk_size
+}
+
+resource "libvirt_domain" "instance_group" {
+  name    = "${var.role}-${count.index}"
+  count   = var.amount
+  memory  = var.memory
+  vcpu    = var.vcpus
+  machine = "q35"
+  tpm {
+    backend_type    = "emulator"
+    backend_version = "2.0"
+  }
+  disk = [
+    {
+      volume_id = element(libvirt_volume.boot_volume.*.id, count.index)
+      scsi : true,
+      // fix for https://github.com/dmacvicar/terraform-provider-libvirt/issues/728
+      block_device : null,
+      file : null,
+      url : null,
+      wwn : null
+    },
+    {
+      volume_id = element(libvirt_volume.state_volume.*.id, count.index)
+      // fix for https://github.com/dmacvicar/terraform-provider-libvirt/issues/728
+      block_device : null,
+      file : null,
+      scsi : null,
+      url : null,
+      wwn : null
+    },
+  ]
+  network_interface {
+    network_id     = var.network_id
+    hostname       = "${var.role}-${count.index}"
+    addresses      = [cidrhost(var.cidr, var.ip_range_start + count.index)]
+    wait_for_lease = true
+  }
+  console {
+    type        = "pty"
+    target_port = "0"
+  }
+  xml {
+    xslt = file("modules/instance_group/domain.xsl")
+  }
+}
+
+resource "libvirt_volume" "boot_volume" {
+  name           = "constellation-${var.role}-${count.index}-boot"
+  count          = var.amount
+  pool           = var.pool
+  base_volume_id = var.boot_volume_id
+}
+
+resource "libvirt_volume" "state_volume" {
+  name   = "constellation-${var.role}-${count.index}-state"
+  count  = var.amount
+  pool   = var.pool
+  size   = local.state_disk_size_byte
+  format = "qcow2"
+}