| Setup Tempest run folder. | |
| To support isolation between multiple runs, separate run folders are required. | |
| Set `tempest` as owner of Tempest's current run folder. | |
| There is an implicit assumption here of a one to one relationship between | |
| devstack versions and Tempest runs. | |
| **Role Variables** | |
| .. zuul:rolevar:: devstack_base_dir | |
| :default: /opt/stack | |
| The devstack base directory. |