Zuul

What it does

Ansible jobs

Zuul uses Ansible to orchestrate jobs across multiple nodes, and it can also run shell scripts without requiring users to write Ansible.checked 11 Oct 2026

API

Zuul provides a REST API, and its documentation describes the OpenAPI specification as a work in progress.checked 11 Oct 2026

Build node providers

Zuul includes provider drivers for AWS, Azure, Kubernetes, OpenStack, and static nodes.checked 11 Oct 2026

Commercial support

The project site lists enterprise distribution, managed on-prem service, support, training, and development as options offered by Acme Gating.checked 11 Oct 2026

Community support

Users can ask usage questions on the zuul-discuss mailing list or in the project’s Matrix room.checked 11 Oct 2026

Deployment

Zuul is a self-hosted service, and its documentation describes running it on an operator’s infrastructure.checked 11 Oct 2026

Gating

Zuul tests proposed changes together with in-flight changes and their dependencies before they are merged.checked 11 Oct 2026

Integrations

Built-in source drivers include Gerrit, Git, GitHub, GitLab, and Pagure; provider drivers include AWS, Azure, Kubernetes, OpenStack, and static nodes.checked 11 Oct 2026

Jobs

Zuul uses Ansible to orchestrate tasks across multiple nodes, and can also run shell scripts without requiring users to write Ansible.checked 11 Oct 2026

Kubernetes

The Zuul Operator is a Kubernetes operator designed to simplify creating and maintaining Zuul systems in Kubernetes.checked 11 Oct 2026

License and stewardship

Zuul is collaboratively developed under the Apache 2 license and managed by the Open Infrastructure Foundation.checked 11 Oct 2026

Multi-project testing

Zuul can test changes across multiple branches and repositories, including in-flight changes and their dependencies.checked 11 Oct 2026

Multi-tenancy

A single Zuul installation can serve multiple projects or groups with configurable separation between them.checked 11 Oct 2026

Multi-tenant

A single Zuul installation can serve multiple projects or groups, with configurable separation between them.checked 11 Oct 2026

Open source

Zuul is free and open source software, collaboratively developed under the Apache 2 license and managed by the Open Infrastructure Foundation.checked 11 Oct 2026

Operational requirement

Zuul and Nodepool use ZooKeeper for internal communication and coordination, and the documentation recommends periodically exporting and backing up the keystore keys.checked 11 Oct 2026

Purpose

Zuul is a project gating system that tests proposed future states of code repositories and their changes before they merge.checked 11 Oct 2026

Review integrations

Zuul includes source drivers for Gerrit, GitHub, GitLab, Pagure, and Git.checked 11 Oct 2026

Secrets

Zuul stores project encryption keys in ZooKeeper, and its documentation recommends backing them up securely because they protect job secrets and SSH access.checked 11 Oct 2026

Security

Zuul runs playbooks in isolated bubblewrap namespaces and supports encrypted data secrets and dynamically generated OpenID Connect tokens for jobs.checked 11 Oct 2026

Security reporting

The Zuul community directs suspected vulnerabilities in its components to a documented vulnerability reporting process.checked 11 Oct 2026

Support

The project offers user and developer mailing lists, a Matrix chat room, and a documented process for reporting security vulnerabilities.checked 11 Oct 2026

Web interface and API

The zuul-web service provides a web dashboard, REST API, and websocket log streaming service.checked 11 Oct 2026