Fix tempest and available modules
tempest_modules and available_modules define stable interfaces, so
they should be implemented so that they can be kept backward
compatible after the move to tempest.lib.
To achieve that, define an internal _tempest_internal_modules, which
holds the list of service modules not migrated to tempest.lib yet.
Tempest service clients module will add incremenetally to
tempest_modules (and thus available_modules), without changing the
meaning of those two sets.
Once all clients are migrated, _tempest_internal_modules will be
dropped silently.
Align the docstring to refer to "set" rather than "list".
Partially-implements: bp client-manager-refactor
Change-Id: I921ad863bce4b4680bd8ebb2887e34cb643621da
3 files changed