This patchset implements the first rewrite of the charm using the
operator framework by simply calling into the hooks.
This change also includes functional validation about charm upgrades
from the previous stable to the locally built charm.
Fix tempest breakage for python < 3.8
Co-authored-by: Chris MacNaughton <chris.macnaughton@canonical.com>
Change-Id: I61308bb2900134ea163d9e92444066a3cb0de43d
func-test-pr: https://github.com/openstack-charmers/zaza-openstack-tests/pull/849
Luciano Lo Giudice