Zuul

Spec sheet

Purpose

Zuul is a project gating system that tests proposed future states of code repositories and their changes before they merge.Read 11 Oct 2026 · zuul-ci.org

Deployment

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

API

Zuul provides a REST API, and its documentation describes the OpenAPI specification as a work in progress.Read 11 Oct 2026 · zuul-ci.org

Integrations

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

Security

Zuul's Operator documentation notes that its all-dependencies installation mode runs with cluster administrator privileges.Read 11 Oct 2026 · zuul-ci.org

Support

The project offers user and developer mailing lists, a Matrix chat room, and a documented process for reporting security vulnerabilities.Read 11 Oct 2026 · zuul-ci.org

Ansible jobs

Zuul uses Ansible to orchestrate jobs across multiple nodes, and it can also run shell scripts without requiring users to write Ansible.Read 11 Oct 2026 · zuul-ci.org

Build node providers

Zuul includes provider drivers for AWS, Azure, Kubernetes, OpenStack, and static nodes.Read 11 Oct 2026 · zuul-ci.org

Commercial support

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

Community support

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

Gating

Zuul tests proposed changes together with in-flight changes and their dependencies before they are merged.Read 11 Oct 2026 · zuul-ci.org

Jobs

Zuul uses Ansible to orchestrate tasks across multiple nodes, and can also run shell scripts without requiring users to write Ansible.Read 11 Oct 2026 · zuul-ci.org

Kubernetes

The Zuul Operator is a Kubernetes operator designed to simplify creating and maintaining Zuul systems in Kubernetes.Read 11 Oct 2026 · zuul-ci.org

License and stewardship

Zuul is collaboratively developed under the Apache 2 license and managed by the Open Infrastructure Foundation.Read 11 Oct 2026 · zuul-ci.org

Multi-project testing

Zuul can test changes across multiple branches and repositories, including in-flight changes and their dependencies.Read 11 Oct 2026 · zuul-ci.org

Multi-tenancy

A single Zuul installation can serve multiple projects or groups with configurable separation between them.Read 11 Oct 2026 · zuul-ci.org

Multi-tenant

A single Zuul installation can serve multiple projects or groups, with configurable separation between them.Read 11 Oct 2026 · zuul-ci.org

Open source

Zuul is free and open source software, collaboratively developed under the Apache 2 license and managed by the Open Infrastructure Foundation.Read 11 Oct 2026 · zuul-ci.org

Operational requirement

Zuul and Nodepool use ZooKeeper for internal communication and coordination, and the documentation recommends periodically exporting and backing up the keystore keys.Read 11 Oct 2026 · zuul-ci.org

Review integrations

Zuul includes source drivers for Gerrit, GitHub, GitLab, Pagure, and Git.Read 11 Oct 2026 · zuul-ci.org

Secrets

Zuul stores project encryption keys in ZooKeeper, and its documentation recommends backing them up securely because they protect job secrets and SSH access.Read 11 Oct 2026 · zuul-ci.org

Security reporting

The Zuul community directs suspected vulnerabilities in its components to a documented vulnerability reporting process.Read 11 Oct 2026 · zuul-ci.org

Web interface and API

The zuul-web service provides a web dashboard, REST API, and websocket log streaming service.Read 11 Oct 2026 · zuul-ci.org

Plans and prices

Every Zuul plan and price →

Where Specifiction places it

• Continuous Integration Software#29 of 588.0
• Game Build Automation Software#25 of 438.0
• Ci Cd Platforms#17 of 288.0