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HTML
175 lines
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HTML
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<meta name="generator" content=
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"HTML Tidy for Linux/x86 (vers 1st November 2003), see www.w3.org" />
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<title>Zuul Confirmation Presentation for OpenStack Foundation Board of Directors</title>
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<div class="background"><object id="head-logo"
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data="graphics/zuul-logo.svg" type="image/svg+xml"
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title="Zuul logo"><a href="http://zuul-ci.org/"><img src="graphics/zuul-logo.svg" id="head-logo-fallback" alt="Zuul logo" /></a></object></div>
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<img src="graphics/zuul-logo.svg" alt="Zuul logo" />
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</div>
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<div class="slide cover title">
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<!-- hidden style graphics to ensure they are saved with other content -->
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<section id="cover">
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<h1>Zuul Confirmation Presentation for OpenStack Foundation Board of Directors</h1>
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<p>James Blair<br />
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Monty Taylor
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<br />
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<br />
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<br />
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<br />
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</section>
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<em>Hit the space bar or swipe left for next slide</em></p>
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</div>
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<div class="slide">
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<h1>Strategic Focus</h1>
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<h3>What is Zuul?</h3>
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<p>Zuul is a program that drives continuous integration, delivery, and deployment systems with a focus on project gating and interrelated projects.</p>
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<p>It is a distributed, massively-scalable, multi-tenant, multi-cloud service designed to be run on the open Internet safely and securely.</p>
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<h3>Mission Statement</h3>
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<p>To provide software and processes to automate continuous integration, delivery, and deployment of interrelated software projects in a secure manner using project gating.</p>
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</div>
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<div class="slide">
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<h1>Technology Overview - Use Cases</h1>
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<p>Zuul is focused on project gating, especially in scenarios involving multiple repositories with
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integrated deliverables. Zuul tests speculative future states that would result from landing a change
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rather than merely the change itself. In this it is unique in the industry.</p>
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<p>Zuul is a scalable multi-tenant service designed to allow consolidation of administration functions,
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common shared libraries of content and shared test resources while empowering distributed development
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teams to operate autonomously.</p>
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<p>Zuul content is directly sharable between Zuul installations.</p>
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<p>Zuul is flexible and avoids assumptions about how software is written or deployed. Baremetal, VMs,
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Containers, Network Switches and Kubernetes are all primary targets that can be mixed and
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matched. Zuul believes CI isn't just for net-new "cloud native" apps, but should be available to
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everyone.</p>
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</div>
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<div class="slide">
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<h1>Technology Overview - Architecture</h1>
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<p>Zuul is a distributed system consisting of several components.</p>
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<img src="https://zuul-ci.org/docs/zuul/_images/graphviz-f4b2b1dcc12d12c701fb43ec88ac2572ac12a44c.png">
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</div>
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</div>
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<div class="slide">
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<h1>Technology Overview - Implementation</h1>
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<p>Zuul is primarily written in Python v3. The web dashboard is in React/Javascript. The zuul-proxy
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service is in C++.</p>
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<p>Zuul depends on Ansible, Zookeeper, Gearman and an RDBMS. (MySQL and PostGreSQL tested)</p>
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<p>Zuul has code review drivers for Gerrit and GitHub and node provider drivers for OpenStack, AWS, Kubernetes and Static. Support for more are both underway and welcome.</p>
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<p>Zuul publishes tagged releases to PyPI as well as container images from master to Dockerhub.</p>
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</div>
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<div class="slide">
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<h1>Technology Overview - History</h1>
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<p>Zuul was originally written for the OpenStack project and has been running in production at scale
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since 2012.</p>
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<p>Zuul v3 was released Mar 28, 2018.</p>
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<p>Since then there have been 13 releases, with the latest, 3.7.1 released Mar 25, 2019.</p>
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<p>Zuul is released as needed.</p>
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<p>Zuul does not maintain branches of old code. Zuul is designed and expected to be run CD. The Zuul
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project considers this a feature.</p>
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</div>
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<div class="slide">
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<h1>Governance</h1>
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<p>Full governance doc can be found at <a href="https://zuul-ci.org/docs/zuul/governance.html">
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https://zuul-ci.org/docs/zuul/governance.html</a>.</p>
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<p>The Zuul project is self-governing.</p>
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<p>Decisions regarding the project are made by the Zuul Maintainers. They are team of people who are
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familiar with the project as a whole and act as stewards. They are expected to consider the needs
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of the entire community.</p>
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<p>Changes to code, documentation, website and other project resources (including these
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<a href="https://review.opendev.org/#/c/649356/">confirmation slides</a>) are done via code
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review. In general, approval of 2 maintainers is sought to approve changes, but depending on
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circumstances a greater or fewer number may be appropriate.</p>
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<p>Other decisions are discussed on the mailing list. Maintainers strive to achieve consensus on these
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topics.</p>
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</div>
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<div class="slide">
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<h1>Governance - Membership</h1>
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<p>Membership of the Maintainers is decided by consensus of the Maintainers.</p>
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<p>Existing maintainers are expected to encourage new members.</p>
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<p>There are no artifical limits on the number of Maintainers. A large group of Maintainers is
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important for the health of the project</p>
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<p>Maintainers are encouraged to become involved in all aspects of the project.</p>
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</div>
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<div class="slide">
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<h1>Governance - Project Lead</h1>
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<p>The Maintainers elect a Project Lead to articulate overall direction and promote consistency.</p>
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<p>The Project Lead does not have any additional rights but does have extra responsibilities.</p>
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<p>The Project Lead must pay particular attention to the overall design and direction, ensure everyone
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is familiar with that design, and facilitate achieving consensus.</p>
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<p>If the project is unable to reach consensus on an issue, the Project Lead may conduct a poll of
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Maintainers. In the case of a tie, the Project Lead's vote will be the tie-breaker.</p>
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<p>The Project Lead is elected to a one-year term via Condorcet from a set of self-nominated
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Maintainers. (The current PL was installed 2019-01-14 by unanimous vote of all 13 Maintainers via <a href="https://review.opendev.org/622439">code review</a>; no Condorcet poll was required as only one candidate was nominated.)</p>
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</div>
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<div class="slide">
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<h1>Technical best practices</h1>
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<h3>Documentation</h3>
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<p>Documentation is maintained in git with Sphinx and managed via code review.</p>
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<p>The Zuul website is also maintained in git and managed via code review.</p>
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<h3>Code review</h3>
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<p>Zuul uses the OpenDev Gerrit for all code management.</p>
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<h3>Testing</h3>
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<p>All changes are gated by OpenDev Zuul.</p>
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<h3>Bug handling</h3>
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<p>Bugs are tracked in OpenDev Storyboard.</p>
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<h3>Security considerations and vulnerability management</h3>
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<p>Zuul obeys recognized security and vulnerability management best practices.</p>
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</div>
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<div class="slide">
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<h1>Open Collaboration</h1>
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<h3>Contributions</h3>
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<p>Current Zuul Maintainers are employed by Red Hat, BMW, OSF, SUSE and GoodMoney.</p>
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<p>All Current Zuul Maintainers have an active role operating a Production Zuul.</p>
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<h3>Policies and practices provide a level playing-field where open collaboration can happen</h3>
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<p>Maintainers are expected to consider the entire community, not just their own individual needs.</p>
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<p>All Zuul decisions are made collaboratively in community interactions.</p>
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<p>Issues found in anyone's Production environment are treated as urgent by all.</p>
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</div>
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<div class="slide">
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<h1>Four Opens</h1>
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<p>Zuul follows the Four Opens.</p>
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<p>Additionally, the Zuul community is closely associated with the OpenDev community, which practices
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Open Operations. Zuul tags releases after verifying operation at scale in OpenDev.</p>
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<p>Zuul does not use any proprietary software as part of its development process</p>
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<h3>Code of conduct</h3>
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<p>The Zuul Community follows the <a href="https://www.openstack.org/legal/community-code-of-conduct/">OpenStack Foundation Code of Coduct</a>.</p>
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<p>Zuul also behaves as a good neighbor to other confirmed and pilot projects within the OpenStack Foundation.</p>
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<h3>License</h3>
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<p>Zuul is mostly Apache 2. There are some sections of GPLv3 where code is loaded into Ansible processes. The zuul-proxy subproject is GPLv3.</p>
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</div>
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<div class="slide">
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<h1>Active Engagement</h1>
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<p>Zuul has been an active participant at all OpenStack Summits and PTGs since before it was split out from the Infrastructure project.</p>
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<p>Zuul presentations are given at conferences around the world.</p>
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<p>Zuul is being used by OpenLab, the Ansible Community, TungstenFabric and many more.</p>
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<p>Since OpenDev runs Zuul, every OpenStack Foundation project using OpenDev is a collaborator.</p>
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</div>
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</body>
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