Refactor that prepares kolla_container_facts
module for introducing more actions that will be moved
from kolla_container module and kolla_container_volume_facts.

This change is based on a discussion about adding a new action
to kolla_container module that retrieves all names of the running
containers. It was agreed that kolla-ansible should follow Ansible's
direction of splitting modules between action modules and facts
modules. Because of this, kolla_container_facts needs to be able
to handle different requests for data about containers or volumes.

Change-Id: Ieaec8f64922e4e5a2199db2d6983518b124cb4aa
Signed-off-by: Ivan Halomi <ivan.halomi@tietoevry.com>

Incorrect condition in Podman part prevented the retrieval
of facts of all the containers when no names were provided.

Closes-Bug: #2058492
Change-Id: I6d7f7ca0523eb17c7d9a9b93d2037bf77f2c2a47
Signed-off-by: Martin Hiner <martin.hiner@tietoevry.com>

This change adds basic deployment based on Podman
container manager as an alternative to Docker.

Signed-off-by: Ivan Halomi <i.halomi@partner.samsung.com>
Signed-off-by: Martin Hiner <m.hiner@partner.samsung.com>
Signed-off-by: Petr Tuma <p.tuma@partner.samsung.com>
Change-Id: I2b52964906ba8b19b8b1098717b9423ab954fa3d
Depends-On: Ie4b4c1cf8fe6e7ce41eaa703b423dedcb41e3afc

See https://github.com/ansible/ansible/pull/76677

Change-Id: If822dcfc4c1abf7a22be35ffd90fd05ee46cb0d9

Second part of patchset:
https://review.opendev.org/c/openstack/kolla-ansible/+/799229/


in which was suggested to split patch into smaller ones.

This change adds container_engine variable to kolla_container_facts
module, this prepares module to be used with docker and podman as well
without further changes in roles.

Signed-off-by: Ivan Halomi <i.halomi@partner.samsung.com>
Co-authored-by: Martin Hiner <m.hiner@partner.samsung.com>
Change-Id: I9e8fa30646844ab4a288555f3aafdda345b3a118

Change-Id: Ie09bf108250a71d539002dd5ccfa63dd71bcfe90

Use latest release 1.1.0 and compatible changes w.r.t pep8

Change-Id: Ie5e5417a1d8481bb59d516a320bd7cc1dd89591e

The pypi package 'docker-py' [1] has been renamed to 'docker' [2].
It is better to move to the new 'docker' package because the old
package will be deprecated and all the new features will go into
the new package only.

Package 'docker' has been added to requirements [3]. The old
package 'docker-py' is still allowed to be in the global requirements
during the transition period but it should be removed after all or
most of the projects finsih the migration.

[1] https://pypi.python.org/pypi/docker-py
[2] https://pypi.python.org/pypi/docker
[3] https://review.openstack.org/#/c/423715/

Change-Id: Ibcd5a57a1fbf55dcc5a690e41f20917f95b63da0

docker-py 2.0.0 is released with renaming docker.Client to
docker.APIClient. and with a new python package name "docker" rather
than "docker-py".
This patch support docker and docker-py packages.

Change-Id: Ib4400a4d2ce803191ee6215c5b28f0052970332c
Closes-Bug: #1668346

Depends-On: I0773851b61d341117ab214382856a9036aca51bb
Change-Id: I060e21ada928577e833de2782be5ea570be32730
Partially-implements: blueprint condition-pre-check