The Gatekeeper, or a project gating system
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Zuul dc9347c122 Merge "Add release note for broken trusted config loading fix" 3 days ago
doc Merge "Add database info for components graph" 1 week ago
etc Fix indent error for layout.yaml-sample. 10 months ago
playbooks Fix zuul-stream functional test 2 weeks ago
releasenotes/notes Add release note for broken trusted config loading fix 4 days ago
tests Merge "Config errors should not affect config-projects" 3 days ago
tools encrypt: Fix SSL error when using file pubkey 1 week ago
web Merge "web: add ErrorBoundary" 6 days ago
zuul Merge "Fix dynamic loading of trusted layouts" 3 days ago
.coveragerc Revert "Revert "Switch to stestr"" 11 months ago
.dockerignore Add web/node_modules to dockerignore 2 months ago
.gitignore Fix ignored but tracked .keep file 4 months ago
.gitreview Updated .gitreview location 6 years ago
.mailmap Fix pep8 E127 violations 6 years ago
.stestr.conf Revert "Revert "Switch to stestr"" 11 months ago
.zuul.yaml Use the buildset registry in zuul-quick-start 2 weeks ago
COPYING Update README and add GPL license 1 year ago
Dockerfile Manage ansible installations within zuul 1 month ago
LICENSE Initial commit. 6 years ago manifest: add zuul/ansible and ansible-config.conf 1 month ago
README.rst Add instructions for reporting vulnerabilities 4 months ago
TESTING.rst Revert "Revert "web: rewrite interface in react"" 6 months ago
bindep.txt Install virtualenv from source 1 month ago
requirements.txt Install virtualenv from source 1 month ago
setup.cfg Manage ansible installations within zuul 1 month ago Partial sync with OpenStack requirements. 5 years ago
test-requirements.txt Cap mypy 4 months ago
tox.ini tox: Fix indentation 2 weeks 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/openstack-infra/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.