The Gatekeeper, or a project gating system
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Zuul 8c1f4e9d6b Merge "Collect more information from quickstart failures" 2 days ago
doc Collect more information from quickstart failures 2 days ago
etc Web: plug the authorization engine 2 weeks ago
playbooks Collect more information from quickstart failures 2 days ago
releasenotes/notes Install yarn before building python artifacts 4 days ago
tests Add option to report build page 1 week ago
tools Make tenant and pipeline optional in zuul-changes 2 weeks ago
web web: logfile remember if initial scroll was performed 2 days ago
zuul executor: resolve build root real path 4 days ago
.coveragerc Revert "Revert "Switch to stestr"" 1 year ago
.dockerignore Add web/node_modules to dockerignore 6 months ago
.gitignore Fix ignored but tracked .keep file 8 months ago
.gitreview OpenDev Migration Patch 4 months ago
.mailmap Fix pep8 E127 violations 6 years ago
.stestr.conf Revert "Revert "Switch to stestr"" 1 year ago
.zuul.yaml Override the job name from which we promote 4 days ago
COPYING Update README and add GPL license 1 year ago
Dockerfile Cleanup executor specific requirements 4 months ago
LICENSE Initial commit. 7 years ago manifest: add zuul/ansible and ansible-config.conf 5 months ago
README.rst Update references for opendev 3 months ago
TESTING.rst tox: Integrate tox-docker 4 months ago
bindep.txt Install virtualenv from source 5 months ago
requirements.txt Cap GitPython <3.0.0 6 days ago
setup.cfg Cleanup executor specific requirements 4 months ago Partial sync with OpenStack requirements. 5 years ago
test-requirements.txt web: add OpenAPI documentation 2 months ago
tox.ini Merge "web: add OpenAPI documentation" 1 month ago



Zuul is a project gating system.

The latest documentation for Zuul v3 is published at:

If you are looking for the Edge routing service named Zuul that is related to Netflix, it can be found here:

If you are looking for the Javascript testing tool named Zuul, it can be found here:

Getting Help

There are two Zuul-related mailing lists:


A low-traffic announcement-only list to which every Zuul operator or power-user should subscribe.


General discussion about Zuul, including questions about how to use it, and future development.

You will also find Zuul developers in the #zuul channel on Freenode IRC.


To browse the latest code, see: To clone the latest code, use git clone

Bugs are handled at:!/project/zuul/zuul

Suspected security vulnerabilities are most appreciated if first reported privately following any of the supported mechanisms described at

Code reviews are handled by gerrit at

After creating a Gerrit account, use git review to submit patches. Example:

# Do your commits
$ git review
# Enter your username if prompted

Join #zuul on Freenode to discuss development or usage.


Zuul is free software. Most of Zuul is licensed under the Apache License, version 2.0. Some parts of Zuul are licensed under the General Public License, version 3.0. Please see the license headers at the tops of individual source files.

Python Version Support

Zuul v3 requires Python 3. It does not support Python 2.

As Ansible is used for the execution of jobs, it's important to note that while Ansible does support Python 3, not all of Ansible's modules do. Zuul currently sets ansible_python_interpreter to python2 so that remote content will be executed with Python 2.