terraform-libvirt/stack/computes.tf

# https://github.com/dmacvicar/terraform-provider-libvirt/blob/master/website/docs/r/domain.html.markdown

# Define KVM domain to create

resource "libvirt_domain" "controllers" {
  name      = format("db%s", count.index)
  memory    = "2048"
  vcpu      = 2
  running   = "true"
  autostart = "true"

  count      = var.number_controller
  qemu_agent = true

  boot_device {
    dev = ["hd", "network"]
  }

  network_interface {
    network_id = libvirt_network.private_network.id
    hostname = format("compute-%s", count.index)
  }

  disk {
    volume_id = libvirt_volume.root_debian[count.index].id
  }

  disk {
    volume_id = libvirt_volume.external_disk[count.index].id
  }

  cloudinit = libvirt_cloudinit_disk.commoninit[count.index].id

  console {
    type        = "pty"
    target_type = "serial"
    target_port = "0"
  }

  graphics {
    type        = "vnc"
    listen_type = "address"
    autoport    = "true"
  }
}

resource "libvirt_domain" "workers" {
  name      = format("db%s", var.number_controller + count.index)
  memory    = "1024"
  vcpu      = 1
  running   = "true"
  autostart = "true"

  count      = var.number_worker
  qemu_agent = true

  boot_device {
    dev = ["hd", "network"]
  }

  network_interface {
    network_id = libvirt_network.private_network.id
    hostname = format("compute-%s", var.number_controller + count.index)
  }

  disk {
    volume_id = libvirt_volume.root_debian[var.number_controller + count.index].id
  }

  disk {
    volume_id = libvirt_volume.external_disk[var.number_controller + count.index].id
  }

  cloudinit = libvirt_cloudinit_disk.commoninit[var.number_controller + count.index].id

  console {
    type        = "pty"
    target_type = "serial"
    target_port = "0"
  }

  graphics {
    type        = "vnc"
    listen_type = "address"
    autoport    = "true"
  }
}