Hi, I was planning on taking the COA exam, and as it's still tested on the Ussuri release I wanted to create a local install to get used to the differences with current releases. I have tried with PackStack but there seem to be some never fixed bug with Galera setup, and with PackStack I wasn't able to make it work on any "supported" OS [bionic|stretch|jessie|f30|f31|opensuse-15.2|opensuse-tumbleweed|rhel8] (either the Python version is too old, or packages install is not supported on EL8, or repositories have been taken down etc etc...) Are there any pre-configured VMs that can be used for training? Or does anyone know on which OS (outside of the ones before) could a Ussuri setup with Devstack run? Thank you in advance Francesco Di Nucci