Self.ip_address does not seem to work in a module

Terraform
1

I have a module I created to create an Ubuntu server on Esxi. Within the resource, I have a connection and a remote-exec provisioner. When I had these in the root module for testing, all worked well. Creating the same resource in a module, it fails with a message that the connection host cannot be empty.

Below is a small snippet of my code for the resourse.

resource "esxi_guest" "Default" {
  guest_name = var.guest_name

  ...

  connection {
    type     = "ssh"
    user     = "mark"
    password = var.vm_password
    host     = self.ip_address
  }

  provisioner "remote-exec" {
    inline = [
      "sudo growpart /dev/sda 1",
      "sudo resize2fs /dev/sda1"
    ]
  }
}

If self does not work, how can I obtain the assigned IP address?

2

Hi @MarkLFT,

Using self should not be affected by the resource’s location within a module. Can you show a more complete example of how you are using this resource in your configuration?

3

Many thanks for your reply. The problem seems to be related to setting the MAC address in the provider.

Without setting the MAC address, I receive an IP address from the DHCP server, but each time I create this VM, I receive a new/different IP address.

Hence the reason for trying to set a fixed MAC, so I would receive the same IP address each time.

But this doesn’t work either. So I think I just need to use a static IP address, and use cloud-init to set a fixed IP address each time.