Hello dear community,
in the research of how to properly delete projects and their resources via the OpenStack API I was only able to find a hint in the official python sdk, the project_purge.py (docs). Here deletion is handled for "servers, images, volumes, snapshots, backups", but not for networks, subnetworks, floating_ip, ports, which are linked to projects and have dependencies to each other the more or less.
Following that, are stale resources garbage collected after time if they are not bound to a project, user , etc?