08f78ace59
The list of pipelines (duplicated with the layout.yaml) was incomplete. No node size was described, and the need (or lack thereof) for backups wasn't covered. Change-Id: Ia20b610e7c51184239910d6b6e902390593fcaff
102 lines
3.0 KiB
ReStructuredText
102 lines
3.0 KiB
ReStructuredText
:title: Zuul
|
|
|
|
.. _zuul:
|
|
|
|
Zuul
|
|
####
|
|
|
|
Zuul is a pipeline-oriented project gating system. It facilitates
|
|
running tests and automated tasks in response to Gerrit events.
|
|
|
|
At a Glance
|
|
===========
|
|
|
|
:Hosts:
|
|
* http://status.openstack.org/zuul
|
|
* http://zuul.openstack.org
|
|
* http://zuul-dev.openstack.org
|
|
:Puppet:
|
|
* :file:`modules/zuul`
|
|
* :file:`modules/openstack_project/manifests/zuul_prod.pp`
|
|
* :file:`modules/openstack_project/manifests/zuul_dev.pp`
|
|
:Configuration:
|
|
* :file:`modules/openstack_project/files/zuul/layout.yaml`
|
|
:Projects:
|
|
* http://launchpad.net/zuul
|
|
* https://git.openstack.org/cgit/openstack-infra/zuul
|
|
:Bugs:
|
|
* http://bugs.launchpad.net/zuul
|
|
:Resources:
|
|
* `Zuul Reference Manual <http://ci.openstack.org/zuul>`_
|
|
|
|
Overview
|
|
========
|
|
|
|
The OpenStack project uses a number of pipelines in Zuul:
|
|
|
|
**check**
|
|
Newly uploaded patchsets enter this pipeline to receive an initial
|
|
+/-1 Verified vote from Jenkins.
|
|
|
|
**gate**
|
|
Changes that have been approved by core developers are enqueued in
|
|
order in this pipeline, and if they pass tests in Jenkins, will be
|
|
merged.
|
|
|
|
**post**
|
|
This pipeline runs jobs that operate after each change is merged.
|
|
|
|
**pre-release**
|
|
This pipeline runs jobs on projects in response to pre-release tags.
|
|
|
|
**release**
|
|
When a commit is tagged as a release, this pipeline runs jobs that
|
|
publish archives and documentation.
|
|
|
|
**silent**
|
|
This pipeline is used for silently testing new jobs.
|
|
|
|
**experimental**
|
|
This pipeline is used for on-demand testing of new jobs.
|
|
|
|
**periodic**
|
|
This pipeline has jobs triggered on a timer for e.g. testing for
|
|
environmental changes daily.
|
|
|
|
Zuul watches events in Gerrit (using the Gerrit "stream-events"
|
|
command) and matches those events to the pipelines above. If a match
|
|
is found, it adds the change to the pipeline and starts running
|
|
related jobs.
|
|
|
|
The **gate** pipeline uses speculative execution to improve
|
|
throughput. Changes are tested in parallel under the assumption that
|
|
changes ahead in the queue will merge. If they do not, Zuul will
|
|
abort and restart tests without the affected changes. This means that
|
|
many changes may be tested in parallel while continuing to assure that
|
|
each commit is correctly tested.
|
|
|
|
Zuul's current status may be viewed at
|
|
`<http://status.openstack.org/zuul/>`_.
|
|
|
|
Zuul's configuration is stored in
|
|
:file:`modules/openstack_project/files/zuul/layout.yaml`. Anyone may
|
|
propose a change to the configuration by editing that file and
|
|
submitting the change to Gerrit for review.
|
|
|
|
For the full syntax of Zuul's configuration file format, see the `Zuul
|
|
reference manual`_.
|
|
|
|
Sysadmin
|
|
========
|
|
|
|
Zuul and gear are lightweight - it should be possible to run both on a
|
|
1G instance for small deployments. OpenStack's deployment requires at
|
|
least a 2G instance at the time of writing.
|
|
|
|
Zuul is stateless, so the server does not need backing up. However
|
|
zuul talks through git and ssh so you will need to manually check ssh
|
|
host keys as the zuul user. e.g.::
|
|
|
|
sudo su - zuul
|
|
ssh -p 29418 review.openstack.org
|