Cannot get availability_zone in spot instance by terraform state

Question

I have

• resource "aws_spot_instance_request" "server" {} which starts just fine
• and need resource "aws_ebs_volume" "spill" {}. For EBS requires availability_zone, that I try to get from aws_spot_instance_request.server.availability_zone, but in .tfstate the "availability_zone" of server is null. That leads to:

Error: Reference to undeclared resource.

How can I get the availability_zone of spot instance?

Answer 1

From the looks of it, the availability zone attribute isn't exported from aws_spot_instance_request. You can see the list of available attributes here

I would perhaps look at using the aws_spot_fleet_request resource with a target capacity of 1. This way you can achieve the same effect and use a launch configuration to specify the availability zone, and then reference it in the attributes (as shown here)