Fedora CoreOS will be provisioned with Ignition. However, existing Ignition configurations may require changes, as the OS configuration will be different from Container Linux. Existing cloud-init configurations are not supported and will need to be migrated into their Ignition equivalent.
Launch FAQ: How are Fedora CoreOS nodes provisioned? Can I re-use existing cloud-init configurations?
That’s cool, ignition is a nice project. Foreman already supports both Atomic and CoreOS: