This fixes issues reported by Mark:
- possible failure with 4-node cluster (however unlikely)
- failure to stop all nodes from progressing when conditions are
  not valid (due to: "any_errors_fatal: False")

Change-Id: Ib6995bf4c99202c9813859b3d9e2f420448f0445

ceph.conf is loaded by qemu, not libvirt.
Since qemu runs as the nova user, ceph.conf owned by root
causes a permission error. The logs in
/var/log/libvirt/qemu/instance-*.log reveal the error.

This change fixes the issue by changing the ownership of ceph.conf
in nova-libvirt to the nova user.

Closes-Bug: #1861513
Change-Id: I1881f51a6c8508f0f186a5623443343dc1df41d4
Signed-off-by: Ning Yao <yaoning@unitedstack.com>

Currently the WSGI configuration for binary images uses python2.7
site-packages in some places. This change uses distro_python_version to
select the correct python path.

Change-Id: Id5f3f0ede106498b9264942fa0399d7c7862c122
Partially-Implements: blueprint python-3

In dev mode currently the python source is mounted under python2.7
site-packages. This change fixes this to use the distro_python_version
variable to ensure dev mode works with Python 3 images.

Change-Id: Ieae3778a02f1b79023b4f1c20eff27b37f481077
Partially-Implements: blueprint python-3

Bullets under Cinder paragraph were not properly formatted.

Change-Id: I0626c93435c989447feb257cd24ddc3af2d05851

To make the configuration easier for the user, and to allow non-standard
ceph authentication ids - introduce ceph_*_user variables.

Change-Id: I24e01c43c826b62b6748d93a498f4b7d8ce9e309

Placement only needs its listen port to be free. During the Placement
split from Nova in commit 2fc6d4cf the wrong variable got moved into
precheck for Placement, this fixes it.

Change-Id: I71e3607c50110763259bfcd70ffb2f4c76e27f62
Closes-Bug: #1861189

Due to regex matching of images, we are currently building quite a few
unnecessary images in CI. Images that can unexpectedly match:

* barbican-keystone-listener
* ironic-neutron-agent
* prometheus-haproxy-exporter
* prometheus-memcached-exporter

This change improves the situation by anchoring matches to the start of
the name. A full solution would be to specify every image required for
each job. This would be quite verbose and require maintenance.

Change-Id: I7387ccd0cb394c54c79bfba8b1c09fce7ee2973e

Since Zuul was restarted after applying [1], we can keep relevant
files listings in the base jobs per scenario without blocking
periodic job runs.
This greatly simplifies the jobs and project definitions.

[1] https://review.opendev.org/678273

Change-Id: If2e4fff6a514e6174709c2fc9f76b103f81a54ae

This change introduces prune-images command.

Uses docker_prune module of Ansible that comes with version 2.8.

Depends-On: https://review.opendev.org/#/c/699333/

Implements: blueprint docker-image-pruning

Change-Id: Icbf374dd50e1cc1f1604bb4fa779b34279efd50c

Change-Id: Ib9c13b69b46cdc3e28be127ccd86df9b59bd60e9

Change-Id: I2cf87b67c4dd46fd5003bf8a330abff83477f9f9

* 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

Change-Id: I2ddc8ce114ebc9754f53866cefbff50e63ed7c7d

Change-Id: I03ee4020cfb277fd3d6c5f5c70a3a6eeee2cac9e

Change-Id: Idcdf6e3a4c5a751c848eb240b1896605843f8154

Change-Id: Ie5111b898da980d63e9d90003f823172e7a78bc2

Introduce user modifiable variables instead of fixed-names
of Ceph keyring files for external Ceph functionality.

Change-Id: I1a33b3f9d6eca5babf53b91187461e43aef865ce

204 for very long url which is hard to break safely
306 for "echo | docker" as echo should not fall

Change-Id: I14df39d611d39ad1f6184ab92d628cb010881fbb

Change-Id: I70f692f125739b5119c71a554a37b5c21d4164f6