Getting Module Loading or Input variable error

Question

I've configured the following variable in module/variables.tf

variable "instance_name" {
    type = string
    default = "instance-1"
    description = "Name of the instance."
}

I refer to the variable in the same module module/main.tf as below

resource "google_compute_instance" "cloud_instance" {
    name = var.instance_name
}

However, when I run terraform init, I get the following error-

Error: Error parsing /module/main.tf: At 15:12: Unknown token: 15:12 IDENT var.instance_name

Any idea why this is happening?

What version of Terraform are you running? If it's pre 0.12 (just a beta right now) then that should be name = "${var.instance_name}" — ydaetskcoR

vivekyad4v vivekyad4v · Accepted Answer · 2019-04-30T06:04:57

You need to refer variable as below to ensure expansion works correctly -

resource "google_compute_instance" "cloud_instance" {
    name = "${var.instance_name}"
}