Jean-Philippe Evrard f1144a762c Use a venv with previous ansible version for upgrades
When doing the role upgrade, we run every playbook with current's
branch ansible. This is normal for the infrastructure bits (which
are running on current branch), but not for the installation of
the previous branch's role, which should use previous branch's
environment.

Depends-On: I7ebb045885dd645b820de2b7f75b46c755c015f6
Change-Id: Ied3168a4a2df385f8cba8f89b2efab208e639e55
Related-Bug: #1741471
2018-02-01 10:38:35 +00:00
..
2016-09-27 15:00:22 +00:00
2018-01-23 13:15:21 +00:00
2017-01-20 16:36:21 +00:00