Adds a support matrix page to documentation.

Change-Id: Ia783f7c42219617cde2accd3f1db013c9bda7679

Kolla Ansible was missing vitrage-persistor service
required by Vitrage for data storage.

Depends on fixing availability of Kolla image.

Change-Id: I8158ba66b8b624f6bcb89da9c990a30a68b7187b
Depends-On: Id5e143636f9a81e7294b775f3d8b9134bee58054
Closes-Bug: #1869319

It was missed in kolla-ceph removal in [1].

[1] 4e6fe7a6

Change-Id: Iacfce48f23dc5887c5f549a70250eee3e4e3f026

It is unnecessary to add octavia user into admin project.
Octavia project does not require this action. Like other projects,
octavia user in service project with admin role is enough.

[1] https://docs.openstack.org/octavia/latest/install/install-ubuntu.html
[2] https://docs.openstack.org/octavia/latest/contributor/guides/dev-quick-start.html#production-deployment-walkthrough
[3] https://github.com/openstack/octavia/blob/master/devstack/plugin.sh

Closes-Bug: #1873176
Change-Id: I35d35177aaabfc6f0abc533a1f756b363bd02308

Followup of last reviews from [1].

[1]: https://review.opendev.org/#/c/696841

Change-Id: I7085093b20e8848e09dc521ae9fbf120e909470d

Observed that a couple of jobs daily fail on post-timeout, when uploading
logs to Swift.

Change-Id: I4445ebafd3eaae2f83b31dd1fc7f3f07d9c5612f

Change-Id: I500cc8800c412bc0e95edb15babad5c1189e6ee4

Change-Id: I4673f436d8943e6fce7e579446c27ec8215b7346

We publish those images for a while.

Change-Id: Ifc157b43e87e4f77a1c70d98343bd0ef9cc0de79

The "balance" keyword is not valid in a frontend section. From the
HAProxy documentation[1]:

balance <algorithm> [ <arguments> ]
balance url_param <param> [check_post [<max_wait>]]
  Define the load balancing algorithm to be used in a backend.
  May be used in sections :   defaults | frontend | listen | backend
                                 yes   |    no    |   yes  |   yes

When running HAProxy using the "split" template style, where a
frontend/backend pair are used instead of one listen section, HAProxy
will emit warnings for the Horizon config due to this.

[1]: https://www.haproxy.org/download/1.5/doc/configuration.txt

Closes-Bug: #1872540
Change-Id: I91cee275d91a51944298618493f4ea0cd80282cc

This fixes Octavia in scenarios requiring providing
CA cert (self-signed, internally-signed).

Change-Id: I60b7ec85f4fd8bbacf5df0ab7ed9a00658c91871
Closes-Bug: #1872404

Change-Id: I22a995195a1d12bb759cba9777527c23475124f2

Deploy a small cloud. Add one host to the compute group in the
inventory, and scale out:

$ kolla-ansible deploy --limit <new compute host>

The command succeeds, but creating an instance fails with the following:

    Host 'compute0' is not mapped to any cell

This happens because we only discover computes on the first host in the
cell's nova conductor group. If that host is not in the specified limit,
the discovery will not happen.

This change fixes the issue by running compute discovery when any ironic
or virtualised compute hosts are in the play batch, and delegating it to
a conductor.

Change-Id: Ie984806240d147add825ffa8446ae6ff55ca4814
Closes-Bug: #1869371

When using the split config style, all backends would be empty, which
meant that HAProxy was unable to serve any traffic. This turned out to
be due to a bad default in the split config template.

Closes-Bug: #1872545
Change-Id: I952e526e735e1d31445963f04d41d66bbdbfdee4

Refactor service configuration to use the copy certificates task. This
reduces code duplication and simplifies implementing encrypting backend
HAProxy traffic for individual services.

Change-Id: I0474324b60a5f792ef5210ab336639edf7a8cd9e

In Ibecac60d1417269bbe25a280996ca9de6e6d018f, the services in the common
role were marked as being mapped to the 'all' group, since the
'service_mapped_to_host' filter expects every service definition to have
either a 'group' or 'host_in_groups' field. While this allows the filter
to pass the common services without error, it will not actually show
them as being mapped to any hosts. This is because the filter uses the
'group_names' variable, which contains all of the groups that a host
belongs to, except the default 'all' group.

This change fixes the issue by returning True from
service_mapped_to_host when the service's group is 'all'.

Change-Id: I39c8416f5d30a535c1743f9c43434b7d2a382196
Related-Bug: #1868596

etcd via tooz does not support group membership required by
Designate coordination.
The best k-a can do is not to configure etcd in Designate.

Change-Id: I2f64f928e730355142ac369d8868cf9f65ca357e
Closes-bug: #1872205
Related-bug: #1840070