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Help:Cloud Services Introduction

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Poster-format overview

WMCS project overview

What is Wikimedia Cloud Services (WMCS)?

Wikimedia Cloud Services (WMCS) provides tools, services, and support for technical collaborators who want to contribute to Wikimedia software projects. WMCS is a computing ecosystem built on OpenStack, GridEngine, and Kubernetes.

WMCS products and services are available for use by anyone connected with the Wikimedia movement without charge. Support and administration of the WMCS resources is provided by a Wikimedia Foundation Cloud Services team and Wikimedia movement volunteers. We maintain a Glossary of related terminology.

🎬 Video: Wikimedia Cloud Services introduction (2019)

📣 Slides: An introduction to Cloud Services presentation (2019)

WMCS history

From 2011 until early 2017, WMCS was known as "Wikimedia Labs." The term 'Labs' was used to refer to a number of different components, and clarification was required. In 2017, the project was reorganized. The former Wikimedia Foundation Labs team and the Tool Labs Support team joined together to create the Wikimedia Cloud Services team.

WMCS products and services

WMCS Products
Service Product Description Use Support Level
VPS Cloud VPS Provides collaboratively owned collections of virtual private servers where users develop and maintain software projects that help the Wikimedia movement. Use this to run full virtual instances. You are willing to administer instances on your own. We can provide quota to do so.  
PaaS Toolforge Provides a shared hosting/platform-as-a-service environment for running bots, webservices, scheduled jobs, and data analysis. Run a specific webservice, scheduled job, or perform analysis. You do not want to or are not able to manage a full virtual environment.
DaaS Data Services A collection of products including private-information-redacted copies of Wikimedia's production wiki databases and access to Wikimedia Dumps. Create replicas of the production databases and other data for analysis and experimentation.   The Quarry service provides database access via a web interface. Some DaaS resources may need to be requested for specific VPS projects.

Renaming of products and services

We are in the process of changing the language and branding of the products and services we offer. You may find some outdated titles and names in WMCS documentation. Edits are welcome!

Participating with WMCS

Sign up for services

To access and contribute to Cloud Services projects and tools, you will need the following accounts:

  • Wikimedia account - this account is the single user login or SUL account you use to contribute to Wikipedia and its sister projects.
  • Wikimedia developer account - this account is used log into this wiki, Toolforge, Cloud VPS, Gerrit and other protected Wikimedia Services.
  • Gerrit - our code review system; where our repositories (repos) live. Note that while GitHub contains many of our public repos, you can only make pull requests for Cloud Services projects via Gerrit. Other Wiki projects may use GitHub exclusively.
  • Phabricator - our project management system; for opening tickets, suggesting features, and talking about our plans for the next quarter.
  • IRC - live chat channels. We have several channels related to our cloud servers, but the main channel is #wikimedia-cloud connect. Deployment also frequently uses #wikimedia-serviceops connect.
  • The ability to access instances in the WMCS environment.

Review the terms and conditions

Second, make sure to review and agree to our terms and conditions. Account holders who plan to use WMCS resources and products must read and agree to the following:

Please pay close attention to the following terms for Toolforge and Cloud VPS:

Communication and support

Support and administration of the WMCS resources is provided by the Wikimedia Foundation Cloud Services team and Wikimedia movement volunteers. Please reach out with questions and join the conversation:


Discuss and receive general support
Receive mail announcements about critical changes
Subscribe to the cloud-announce@ mailing list (all messages are also mirrored to the cloud@ list)
Track work tasks and report bugs
Use the Phabricator workboard #Cloud-Services for bug reports and feature requests about the Cloud VPS infrastructure itself
Learn about major near-term plans
Read the News wiki page
Read news and stories about Wikimedia Cloud Services
Read the Cloud Services Blog (for the broader Wikimedia movement, see the Wikimedia Technical Blog)

Learn more