A default stack in PCF Dev is cflinuxfs2 (based on Ubuntu 14.04). But I would like to use a custom stack (specifically cflinuxfs3 based on Ubuntu 18.04).
I have built it successfully (also created a corresponding BOSH release), but I am unable to register it to my PCF Dev environment. The problem seems to be that PCF Dev does not support BOSH Director.
I have also tried to use the CF Stack API, partially succeeded in registering a new stack (name and description), but was not able to upload the actual rootfs tarball.
Could anyone help me how to properly upload a custom stack to PCF Dev?