With the parameter ``mariadb_datadir_volume`` it is possible
to use a directory as volume for the mariadb service. By default,
a volume named mariadb is used (the previous default).

Change-Id: Ic61fe981825c5fa6f50e53c9555b6a102f42f522

CentOS Storage SIG rpms have a recommended install
section that installs podman - let's stop doing that.

Ceph is also suffering from the enormous open files
ulimit that EL9 defaults to - let's set a default
in docker engine for now.

Change-Id: I41f39f520dfecec307ad3b86e1e0363570198e42

This is to allow us to customize for CI.

Change-Id: Ie45860fa2228c21ce45ac8118267fb8304129802

Change-Id: I1850523d5aeaee9d377c08107239eff66e29f049

Add venus and skyline projects content in README.rst
trivial fix

Change-Id: Ie06dc45d72d7dd9e283eb03538a6fba710cdf3db

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

For Masakari and HACluster to work properly, the hostnames used
in HACluster need to match with the hostnames used in Nova.

Change-Id: Iac917ef4471905caab591cd64eab379e150a8524

Change-Id: I186651e2ad05a76a606444ee673b73e171456312

Change-Id: I13ee17a96033da75cbb377bce483f027127d646d

Change-Id: I80fb1469ae4ff8d38198e495690496fcb5eadc18

cpu_model is deprecated

Change-Id: If30fb6aec745a48c42a2f281f726a869017ba9b9

Hardcoding the first etcd host creates a single point of failure.

Change-Id: I0f83030fcd84ddcdc4bf2226e76605c7cab84cbb

etcd-compatible tooz drivers do not support multiple endpoints via
backend_url. We can put a loadbalancer in front of etcd and configure
backend_url to use the VIP instead. The issue with hard coding the first
host is that we break coordination if we take this host offline. In the
case of cinder, we would not be able to perform any volume related
operations.

Co-Authored-By: Mark Goddard <mark@stackhpc.com>
Change-Id: Ib684501ba03c386dc5ac71e5cbea05c99f191665

Depends-On: https://review.opendev.org/c/openstack/ansible-collection-kolla/+/872590
Change-Id: Ia8283f28147fbbd2d24028d01e021f95598b86fb