gistfile1.txt

provider "libvirt" {
    uri = "qemu:///system"
}

resource "libvirt_volume" "centos7" {
  name = "centos-stable"
  source = "http://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud.qcow2"
}

resource "libvirt_volume" "centos" {
  name = "centos${count.index}"
  base_volume_id = "${libvirt_volume.centos7.id}"
  count = 4
}

resource "libvirt_cloudinit" "centos" {
  name = "centos${count.index}.iso"
  local_hostname = "centos${count.index}"
  count = 4
  ssh_authorized_key = "SNIP"
}

resource "libvirt_domain" "centos" {
  name = "centos${count.index}"
  disk {
       volume_id = "${element(libvirt_volume.centos.*.id, count.index)}"
  }
  count = 4
  serialconsole = "yes"
  network_interface {
    network_name = "default"
  }
  cloudinit = "${element(libvirt_cloudinit.centos.*.id, count.index)}"
}