How do I use an ignition file on the Fedora IOT image

I’ve looked through all the docs and I can only find instructions to use ignition files with the coreos installer. Is there a way to use my ignition file with Fedor IOT? The website seems to hint at it but also suggests Zezere. I really don’t want to run a server to configure my rpi cluster. I just want an image I can use for new RPis in my kubernetes cluster.