The change.id given to the status.json output for github PRs is a full "PR#,SHA" combo. This gives it uniqueness when we can have multiple commits and versions of commits per PR. When we display this in the status page though i think all we care about is the PR number, so trim it out and just display that. Change-Id: I73385a6b0743a6764fdfdd51cd1d8ee02b71c53c Signed-off-by: Jamie Lennox <email@example.com>
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Zuul is a project gating system developed for the OpenStack Project.
We are currently engaged in a significant development effort in preparation for the third major version of Zuul. We call this effort Zuul v3 and it is described in more detail below.
We are currently engaged in a significant development effort in preparation for the third major version of Zuul. We call this effort Zuul v3 and it is described in this file in the feature/zuulv3 branch of this repo.
To browse the latest code, see: https://git.openstack.org/cgit/openstack-infra/zuul/tree/ To clone the latest code, use git clone git://git.openstack.org/openstack-infra/zuul
Bugs are handled at: https://storyboard.openstack.org/#!/project/679
Code reviews are, as you might expect, handled by gerrit at https://review.openstack.org
Use git review to submit patches (after creating a Gerrit account that links to your launchpad account). Example:
# Do your commits $ git review # Enter your username if prompted
The Zuul v3 effort involves significant changes to Zuul, and its companion program, Nodepool. The intent is for Zuul to become more generally useful outside of the OpenStack community. This is the best way to get started with this effort:
Read the Zuul v3 spec: http://specs.openstack.org/openstack-infra/infra-specs/specs/zuulv3.html
We use specification documents like this to describe large efforts where we want to make sure that all the participants are in agreement about what will happen and generally how before starting development. These specs should contain enough information for people to evaluate the proposal generally, and sometimes include specific details that need to be agreed upon in advance. They are living documents which can change as work gets underway. However, every change or detail does not need to be reflected in the spec --most work is simply done with patches (and revised if necessary in code review).
Read the Nodepool build-workers spec: http://specs.openstack.org/openstack-infra/infra-specs/specs/nodepool-zookeeper-workers.html
Review any proposed updates to these specs: https://review.openstack.org/#/q/status:open+project:openstack-infra/infra-specs+topic:zuulv3
Some of the information in the specs may be effectively superceded by changes here, which are still undergoing review.
Read developer documentation on the internal data model and testing: http://docs.openstack.org/infra/zuul/feature/zuulv3/developer.html
The general philosophy for Zuul tests is to perform functional testing of either the individual component or the entire end-to-end system with external systems (such as Gerrit) replaced with fakes. Before adding additional unit tests with a narrower focus, consider whether they add value to this system or are merely duplicative of functional tests.
Review open changes: https://review.openstack.org/#/q/status:open+branch:feature/zuulv3
We find that the most valuable code reviews are ones that spot problems with the proposed change, or raise questions about how that might affect other systems or subsequent work. It is also a great way to stay involved as a team in work performed by others (for instance, by observing and asking questions about development while it is in progress). We try not to sweat the small things and don't worry too much about style suggestions or other nitpicky things (unless they are relevant -- for instance, a -1 vote on a change that introduces a yaml change out of character with existing conventions is useful because it makes the system more user-friendly; a -1 vote on a change which uses a sub-optimal line breaking strategy is probably not the best use of anyone's time).
Join #zuul on Freenode. Let others (especially jeblair who is trying to coordinate and prioritize work) know what you would like to work on.
Check storyboard for status of current work items: https://storyboard.openstack.org/#!/board/41
Work items tagged with
low-hanging-fruitare tasks that have been identified as not requiring an expansive knowledge of the system. They may still require either some knowledge or investigation into a specific area, but should be suitable for a developer who is becoming acquainted with the system. Those items can be found at: https://storyboard.openstack.org/#!/story/list?tags=low-hanging-fruit&tags=zuulv3
Once you are up to speed on those items, it will be helpful to know the following:
Zuul v3 includes some substantial changes to Zuul, and in order to implement them quickly and simultaneously, we temporarily disabled most of the test suite. That test suite still has relevance, but tests are likely to need updating individually, with reasons ranging from something simple such as a test-framework method changing its name, to more substantial issues, such as a feature being removed as part of the v3 work. Each test will need to be evaluated individually. Feel free to, at any time, claim a test name in this story and work on re-enabling it: https://storyboard.openstack.org/#!/story/2000773
Because of the importance of external systems, as well as the number of internal Zuul components, actually running Zuul in a development mode quickly becomes unweildy (imagine uploading changes to Gerrit repeatedly while altering Zuul source code). Instead, the best way to develop with Zuul is in fact to write a functional test. Construct a test to fully simulate the series of events you want to see, then run it in the foreground. For example:
.tox/py27/bin/python -m testtools.run tests.unit.test_scheduler.TestScheduler.test_jobs_executed
See TESTING.rst for more information.
There are many occasions, when working on sweeping changes to Zuul v3, we left notes for future work items in the code marked with "TODOv3". These represent potentially serious missing functionality or other issues which must be resolved before an initial v3 release (unlike a more conventional TODO note, these really can not be left indefinitely). These present an opportunity to identify work items not otherwise tracked. The names associated with TODO or TODOv3 items do not mean that only that person can address them -- they simply reflect who to ask to explain the item in more detail if it is too cryptic. In your own work, feel free to leave TODOv3 notes if a change would otherwise become too large or unweildy.
- Begin using Zuul v3 to run jobs for Zuul itself
- Implement a shim to translate Zuul v2 demand into Nodepool Zookeeper launcher requests
- Begin using Zookeeper based Nodepool launchers with Zuul v2.5 in OpenStack Infra
- Move OpenStack Infra to use Zuul v3
- Implement Github support
- Begin using Zuul v3 to run tests on Ansible repos
- Implement support in Nodepool for non-OpenStack clouds
- Add native container support to Zuul / Nodepool