Setting AWS on-demand instances using Terraform aws_spot_fleet_request resource using a launch_template?

Question

Terraform v0.12.x

I created a launch template using Terraforms aws_launch_template resource. I then use the created template to create an AWS spot fleet using the aws_spot_fleet_request resource. Straight-forward enough.

In the AWS console, I can also launch spot fleets using launch templates, and there I have the option to create on-demand instances, as seen in this screen shot

However, I don't see how to do the same using the aws_spot_fleet_request resouce. So though I successfully create the spot fleet, I don't see any on-demand instances created, they're all spot instances. What's the trick to add on-demand instances to my fleet?

Answer 1

aws_spot_fleet_request does not support spot fleets with spot and on-demand instances. Thus, aws_spot_fleet_request is for a spot fleet containing only spot instance.

However, there is already a PR made to add this functionality:

• r/spot_fleet_request - on demand arguments