Add a TLS scenario in zuul to generate self signed certificates and
to configure TLS to be enabled in the open stack deployment.

Change-Id: If10a23dfa67212e843ef26486c9523074cc920e7
Partially-Implements: blueprint custom-cacerts

* Adding zuul centos-source/ubuntu-source ceph-ansible jobs
* Jobs will deploy all Ceph integrated OpenStack components, i.e.
  cinder, glance, nova
* Will utilize core openstack testing script

Depends-On: https://review.opendev.org/685032
Depends-On: https://review.opendev.org/698301

Implements: blueprint ceph-ansible
Change-Id: I233082b46785f74014177f579aeac887a25b2ae2

Some kolla-ansible jobs failed due to using external mirrors
instead of local ones.
This was due to not using the template override provided by kolla.
This patch fixes that.

Depends-On: https://review.opendev.org/668226


Change-Id: I27f714fdf05e521aa8ce25c5683a452ceb35eeb8
Signed-off-by: Radosław Piliszek <radoslaw.piliszek@gmail.com>

Typically, non-executable files should have 660 or 600 and executable
files and directories should have 770. All should be owned by the
'config_owner_user' and 'config_owner_group' variables.

This change adds a script to check the owner and permissions of config
files under /etc/kolla, and runs it at the end of CI jobs.

Change-Id: Icdbabf36e284b9030017a0dc07b9dc81a37758ab
Related-Bug: #1821579