Need to create multile vms in azure through terraform

Question

I\'m facing issues during creation of multiple VMs in Azure with Terraform. Each time it is failing because it is picking the same network-interface-id. So how can I change

Answer 1

If you're trying to link two resources as you loop through them then you need to use "splats" to retrieve the list of resources created in a loop and select the right one. This is explained briefly in the interpolation syntax docs and the resources docs.

In your case you probably want something like:

variable "count" {default = 2} 

resource "azurerm_network_interface" "terraform-CnetFace" {
  count = "${var.count}"
  ...
}

resource "azurerm_virtual_machine" "terraform-test" {
  count = "${var.count}"
  ...
  network_interface_ids = ["${element(azurerm_network_interface.terraform-CnetFace.*.id, count.index)}"]
  ...
}

This exposes the outputs for each of the looped network interfaces created and then loops through them grabbing the id from the output and passing it to the appropriate azurerm_virtual_machine.