Comment 1 for bug 1490584

I think you have to use "disk-image-create" with the ironic-agent element [1]. That's because we need a image with a real init system in it for the service to work (i.e systemd).

Take a look at the Ironic documentation as well about how to build the IPA deploy ramdisk with DIB:http://docs.openstack.org/developer/ironic/deploy/install-guide.html#buildingdibbaseddeployramdisk

[1] https://github.com/openstack/diskimage-builder/blob/master/elements/ironic-agent/cleanup.d/99-ramdisk-create