Comment 4 for bug 1571563

My use case is full-disk encryption. MAAS 1.9 does not have support for it but it's a hard requirement for my deployment. I filed this as separate bug LP1570391

There is nothing missing from curtin, it already supports full-disk encryption there is just no way to get MAAS to do genearate preseed with full disk stanzas.

I managed to do what I need to do by writing custom preseed and applying small patch to maas (see linked branch).

In any case I think it's beneficial to allow users to override preseed generated by MAAS in case there are configurations not supported by MAAS but supported by curtin