node_vm.tf

resource "azurerm_virtual_machine" "k8s-node" {
  count = "${var.node_vm_count}"

  name = "k8s-node-${count.index}"
  location = "${var.location}"
  resource_group_name = "${var.resource_group}"
  network_interface_ids = ["${element(azurerm_network_interface.k8s-node.*.id, count.index)}"]
  availability_set_id = "${azurerm_availability_set.k8s-node.id}"
  vm_size = "${var.node_vm_size}"
  delete_os_disk_on_termination = true
  delete_data_disks_on_termination = true

  storage_image_reference {
    publisher = "Canonical"
    offer = "UbuntuServer"
    sku = "16.04.0-LTS"
    version = "latest"
  }

  storage_os_disk {
    name = "k8s-nodedisk1"
    vhd_uri = "${element(azurerm_storage_account.k8s-node.*.primary_blob_endpoint, count.index)}${element(azurerm_storage_container.k8s-node.*.name, count.index)}/k8s-node-${count.index}disk1.vhd"
    caching = "ReadWrite"
    create_option = "FromImage"
  }

  os_profile {
    computer_name = "k8s-node-${count.index}"
    admin_username = "REDACTED"
    admin_password = "REDACTED"
  }

  os_profile_linux_config {
    disable_password_authentication = true
    ssh_keys {
      path = "REDACTED"
      key_data = "REDACTED"
    }
  }

  tags {
    environment = "${var.environment}"
    version = "${var.version}"
  }

  lifecycle {
    ignore_changes = ["storage_data_disk"]
  }
}