a simple Terraform Configuration file to launch a VM in OpenStack

terraform-openstack-vm.tf

variable "OS_AUTH_URL" {}
variable "OS_PASSWORD" {}
variable "OS_TENANT_NAME" {}
variable "OS_USERNAME" {}
variable "OS_KEYPAIR" {}
variable "OPENSTACK_PROVIDER_NET" {}
variable "vm_name" {}
variable "flavor_name" {}

# Configure the OpenStack Provider
provider "openstack" {
  tenant_name = "${var.OS_TENANT_NAME}"
  user_name   = "${var.OS_USERNAME}"
  password    = "${var.OS_PASSWORD}"
  auth_url    = "${var.OS_AUTH_URL}"
}

### Get image ID for latest version
data "openstack_images_image_v2" "Ubuntu1804" {
  name        = "Ubuntu1804-Latest"
  most_recent = true
}

### Deploy Ubuntu1804 with only provider network ###
resource "openstack_compute_instance_v2" "vm" {
  name        = "${var.vm_name}"
  flavor_name = "${var.flavor_name}"
  key_pair    = "${var.OS_KEYPAIR}"

  lifecycle {
    ignore_changes = "block_device"
  }

  block_device {
    uuid                  = "${data.openstack_images_image_v2.Ubuntu1804.id}"
    source_type           = "image"
    volume_size           = "${data.openstack_images_image_v2.Ubuntu1804.min_disk_gb}"
    boot_index            = 0
    destination_type      = "volume"
    delete_on_termination = true
  }

  network {
    name = "${var.OPENSTACK_PROVIDER_NET}"
  }
}

output "ip_address" {
  value = "${openstack_compute_instance_v2.openstack-Ubuntu1804.access_ip_v4}"
}