This ensures the virtualenv tool is available on all testing nodes.
Depends-On: https://review.opendev.org/723309
Change-Id: Ic52a380dab9faa0f65d3c1ebe0bff6f69736e3cd
This finalises the ports of the legacy jobs to zuul native jobs.
The dib-setup-gate-mirrors role preconfigures the repo templates,
etc. for the openstack-ci-mirrors element.
The dib-functests role runs the tests as specified by dib_functests,
and can run under python2 or 3.
Change-Id: Ied67a31f0d31503d13eccad8662c29740c93f33e