Fourth part of patchset:
https://review.opendev.org/c/openstack/kolla-ansible/+/799229/
which was suggested to be split into smaller patches.
This commit refactors select methods from DockerWorker class
into ContainerWorker class. New class contains Docker independent
methods also used in Podman introduction and is inteded as a
parent class for specific worker classes.
Signed-off-by: Ivan Halomi <i.halomi@partner.samsung.com>
Co-authored-by: Martin Hiner <m.hiner@partner.samsung.com>
Change-Id: I2dd5920410dda053f2dfedc4e2666c56b1a7095a
9a14a306ca