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 641874967e Merge "Calculate build start and end time on executor server" 23 hours ago
doc docs: Fix spelling mistake 1 day ago
etc Move key_store_password to keystore section in zuul.conf 1 month ago
playbooks Use ssh-keyscan -4 in quick-start 4 weeks ago
releasenotes/notes Remove translation of check run action in github driver 1 week ago
tests Revert "Omnibus executor secret decrypt revert" 1 day ago
tools Really retry yarn installs 2 weeks ago
web Add waiting status to status page 3 weeks ago
zuul Merge "Calculate build start and end time on executor server" 23 hours ago
.coveragerc Revert "Revert "Switch to stestr"" 3 years ago
.dockerignore Add web/node_modules to dockerignore 2 years ago
.gitignore Use ZooKeeper TLS in tests 2 months ago
.gitreview OpenDev Migration Patch 2 years ago
.mailmap Fix pep8 E127 violations 9 years ago
.stestr.conf Revert "Revert "Switch to stestr"" 3 years ago
.zuul.yaml Use ZooKeeper TLS in tests 2 months ago
COPYING Update README and add GPL license 3 years ago
Dockerfile Noop change to Dockerfile to trigger image builds 3 months ago
LICENSE Initial commit. 9 years ago Optimize canMerge using graphql 1 year ago
README.rst Support nodes setting 'auto' python-path 2 years ago
TESTING.rst Docs: fix stestr run example 1 year ago
bindep.txt Use ZooKeeper TLS in tests 2 months ago
reno.yaml Add reno configuration settings 10 months ago
requirements.txt Include database requirements by default 3 months ago
setup.cfg Merge "Include database requirements by default" 2 months ago Partial sync with OpenStack requirements. 8 years ago
test-requirements.txt Optimize canMerge using graphql 1 year ago
tox.ini Retry yarn package installs 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/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.