variable "foo" {}

resource "aws_instancÿÿÿÿÿÿÿÿÿÿÿÿÿÿ       ÷ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿe" "foo" {*
  ami = var.foo

  lifecycle {
    ignore_changes = [ami]
  }
}