limitations of install-ubuntu-openstack
The Beta of the OpenStack Autopilot can deploy on up to 10 physical nodes before running into the limits of its built-in license.
You may contact Canonical sales to increase the number of managed devices, but this will only become possible after the public beta status for the product ends (we don't like to charge for "beta" functionality).
To be clear, the 10 free nodes will continue to be available even after the Beta period ends.