The Gatekeeper, or a project gating system
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
Zuul c73606af95 Merge "Fix gitlab squash merge" 2 hours ago
doc Merge "Add ssh_server option to Gerrit driver" 3 days ago
etc Remove "sql connection" backwards compatability for database 5 months ago
playbooks Cleanup actiongeneral usage 2 months ago
releasenotes/notes Merge "Add ssh_server option to Gerrit driver" 3 days ago
tests Merge "Fix gitlab squash merge" 2 hours ago
tools Add a script to find deprecated queue syntax 2 months ago
web Set logfile isFetching initial state to true 2 months ago
zuul Merge "Fix gitlab squash merge" 2 hours ago
.coveragerc Revert "Revert "Switch to stestr"" 4 years ago
.dockerignore Add web/node_modules to dockerignore 3 years ago
.gitignore Use ZooKeeper TLS in tests 1 year ago
.gitreview OpenDev Migration Patch 3 years ago
.mailmap Fix pep8 E127 violations 10 years ago
.stestr.conf Revert "Revert "Switch to stestr"" 4 years ago
.zuul.yaml Increase unit test timeout to 2 hours 1 month ago
COPYING Update README and add GPL license 4 years ago
Dockerfile Update nodejs runtime to version 16 4 months ago
LICENSE Initial commit. 10 years ago Optimize canMerge using graphql 2 years ago
README.rst Support nodes setting 'auto' python-path 3 years ago
TESTING.rst Docs: fix stestr run example 2 years ago
bindep.txt Drop ambient capabilities when running bwrap 8 months ago
reno.yaml Add reno configuration settings 2 years ago
requirements.txt Pin elasticsearch to <8.0.0 4 months ago
setup.cfg Clarify zuul admin CLI scope 1 month ago Partial sync with OpenStack requirements. 9 years ago
test-requirements.txt github: more complete mocking for app setup 9 months ago
tox.ini nodepool-zuul-functional: remove 5 months 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 requires Python 3. It does not support Python 2.

Since Zuul uses Ansible to drive CI jobs, Zuul can run tests anywhere Ansible can, including Python 2 environments.