There is currently no coverage of upgrades in CI, which leaves us open
to regression in this infrequently tested but crucial area. This change
adds the required scripts and Zuul configuration.

A control plane is first deployed using the Kayobe stable/pike branch
and associated default configuration. The control plane is tested by
deploying then deleting a server instance. An upgrade to Queens is
performed, using the Kayobe master branch, or code in review if
applicable. The upgraded control plane is tested by deploying then
deleting a second server instance.

A workaround was required to restart the nova_compute service after the
upgrade, since the SIGHUP sent to it by Kolla Ansible during upgrade
appeared to be putting it into a degraded state.

A future improvement to this test could be to leave a server instance
running during the upgrade.

Change-Id: I0e595524e39d1131fe3ec6aaf2aeec3ff3d6a536
Story: 2003472
Task: 24732

Change-Id: Ib3a638fa1d92457e713ed52c84b8484f8c3dcf34

Change-Id: I35a54f48bc8234425dda639af37c4029536d9666

Change-Id: Ia9589ba33ce4ae83c1fece6fa100c5740432c4e5

Without this change twine check dist/* would fail as this was
producing a double new line. The rest of the PKG-INFO would then
be interpreted as the message body and become the long
description. See https://github.com/pypa/twine/issues/422 for
more details.

This fixes the test-release-openstack-python3 zuul job.

TrivialFix

Change-Id: If1330c4824e949aa427475dfcc26218fb398a66e

Adds support for a '--disable-discovery' argument to the 'kayobe
physical network configure' command. This can be used to configure the
physical network after discovery of bare metal compute nodes is
complete, to return the network to a normal state. The interface
configuration to be applied is configured via
'switch_interface_config_disable_discovery'.

Essentially, this is the mirror of the '--enable-discovery' argument.

Change-Id: I40426a8fd22e51e8ea3350013a614dfbcf2afccf
Story: 2004048
Task: 27054

Change-Id: I9082d3f0e8bd76f2bac511d79110f11fbe1e749d

This only affects the kayobe documentation, not the release notes.

A webhook is configured for the kayobe readthedocs project which has ID
50407.

See
http://lists.openstack.org/pipermail/openstack-dev/2018-August/132836.html
for further information.

Change-Id: Ibfccf30f51ab2f63743bf6e2b61bf9a3883cff23

Prior to the Queens release, release notes were added to the kayobe
sphinx documentation. During the Queens release cycle they were changed
to be generated via the reno tool.

This change moves the pre-Queens release notes to the reno source,
ensuring that all release notes are available in one place.

Change-Id: I9606cbe50aacc498a645bff163e3d2dafac198e3

Synchronises changes made to kayobe-config that were not synced back to kayobe.

Change-Id: Ib5946ef9423818ebc76cc89d1662cf0076e2f288

Kolla-ansible uses the variable 'ironic_dnsmasq_interface' to denote the
interface for the ironic inspector dnsmasq service. Previously kayobe
was incorrectly using the variable 'inspector_dnsmasq_interface', which
caused kolla-ansible to ignore it and use the API interface instead.
This patch fixes that.

Change-Id: I733a84759cd03b62659dbf2d7027b7be9e42e818
Story: 2004026
Task: 27017

Change-Id: Ife6b88f9bd5d1489ae28389c3266117f2592ea84
Story: 2003986

InfluxDB config file merging isn't supported in Kolla-Ansible because
it uses 'nested sections' which aren't supported by merge_configs. If
no override file is specified, Kayobe will write out an empty config
file which will then be used as the InfluxDB config file, breaking
InfluxDB. To prevent that happening this change removes the extra
config in Kayobe. It also fixes the directory to which the 'glob'
collected config is copied to, as Kolla-Ansible doesn't look for
Influxdb config files in the influxdb folder.

Change-Id: Iee4b7987934045f0355b4a87cebaebc1aa2bbe77
Story: 2003951
Task: 26868

The IPA ramdisk and kernel images may be built or downloaded via a URL.
If the latter option is used, any images previously downloaded to
$KOLLA_CONFIG_PATH/config/ironic/ironic-agent.* would previously not be
updated if the image contents change.

This change introduces variables for setting a URL to a file containing
checksums for the images. The algorithm used to compute the checksum is
also configurable (default sha256). This allows us to ensure we are
using the correct version of the image, while avoiding an expensive few
hundred megabyte image download just to check.

If a checksum is not specified, the image will be downloaded every time
to ensure that it is up to date.

Change-Id: I8120518ed98d61f3652f5205ce7ec9f798ab2aa1
Story: 2001660
Task: 6693

OpenStack policy prevents non-official projects from hosting their
release notes on docs.o.o.

Change-Id: I5be1fbf6e0b9f32dff88edc3990a3da4009d1658

Use templates instead of individual jobs.

Remoe usage of releasenotes templates since it publishes content to
docs.o.o and only official OpenStack projects can publish there, use
instead just the build jobs.

Change-Id: I3046569efd586707150fb4cc753fd55979470946

Change-Id: Id346b6742dda373a3174afbc05c3ffea440c2a42
Story: 2003920
Task: 26820

Currently we're saving the config generated by kayobe for kolla, but not
the config generated by kolla for the containers. This change fixes
that.

Change-Id: I5558a4fb8285a4e96f6918d133452d664b7bf0fa

Change-Id: I4e9030c7786e8c164e83d2d1d56ac3b362597f67

The libvirt_vm_vcpus and libvirt_vm_memory_mb variables are required by
the stackhpc.libvirt-vm role even when setting libvirt_vm_state to
absent. Without these variables, `kayobe seed vm deprovision` fails with
the following error:

    FAILED! => {"msg": "'libvirt_vm_vcpus' is undefined"}

Change-Id: If74f4229cf777328e3a02794067caae7aa731a80