We do have the ability to run our test suite (
https://github.com/coreos/mantle) on AWS. We currently don't have it wired into our build pipeline (but that's on my list of things to get running soon), once it is set up in the pipeline it will be ran anytime we build EC2 images. The test results themselves will be stored inside of the pipeline, but we can probably look into putting them somewhere more accessible if there's a relevant need.
We default to using m4.large instances, but it's configurable via CLI flag.