According to Openstack summit session [1],
stestr is maintained project to which all Openstack projects should migrate.
Let's switch to stestr as other projects have already moved to it.
[1] https://etherpad.openstack.org/p/YVR-python-pti
Change-Id: I255684ebe0c2d59c4141eeec12ac346bfcf477b2
Currently the code in this repo is half modular have series of scripts.
Migrate the code to be more modular. The main benefit to this is
testing is easier.
Testing is added in a followup patch
Change-Id: Ic1262436147ecdb818ee259e2e85fca8df09d722