Cannot get public IP address of spot instance with Terraform

I’m spinning up a spot instance as you can see in below config and then trying to get the IP address from the spot. It seems to work fine with a regular ec2 instance (ie. that is not spot instance).

The error that I get is:

aws_route53_record.staging: Resource‘aws_spot_instance_request.app-ec2’ does not have attribute‘public_ip’ for variable ‘aws_spot_instance_request.app-ec2.public_ip’

Here is the config that I’m using:

resource "aws_spot_instance_request""app-ec2" {    ami = "ami-1c999999"    spot_price    = "0.008"    instance_type = "t2.small"    tags {        Name = "${var.app_name}"    }    key_name = "mykeypair"    associate_public_ip_address = true    vpc_security_group_ids = ["sg-99999999"]    subnet_id = "subnet-99999999"    iam_instance_profile = "myInstanceRole"    user_data = <<-EOF#!/bin/bashecho ECS_CLUSTER=APP-STAGING >> /etc/ecs/ecs.config    EOF}resource "aws_route53_record""staging" {   zone_id = "XXXXXXXX"   name = "staging.myapp.com"   type = "A"   ttl = "300"   records = ["${aws_spot_instance_request.app-ec2.public_ip}"]

The spot request is fulfilled on the AWS Console as per below:

Any help will be greatly appreciated!