Hosted TeamCity for Open Source – A New Home

Back in 2008, with the release of TeamCity 3.1, James Kovacs, Brendan Tompkins and a few others contacted us in order to provide a hosted TeamCity instance for OSS projects in .NET. That ultimately became the TeamCity at CodeBetter site.

For quite a few number of years, the service was maintained and hosted by volunteers from CodeBetter and the last years by Anne Epstein, who has been doing a wonderful job of single-handedly managing new projects, etc.

JetBrains’ involvement in the project was merely limited to providing TeamCity licenses and monetary support for the server, until around 2014. Since then we’ve been slightly more involved in terms of TeamCity administration. However server maintenance and other aspects were out of our area of responsibility.

While doing this, we were also in parallel conversations of providing a more reliable and faster service (and servers) to OSS projects and somehow consolidating .NET projects with what we’ve been offering for projects on TeamCity at JetBrains

Unfortunately this past September, the hardware died  and did so badly. Luckily we managed to rescue most of the projects and data and continue with the migration process to our own servers. For a complete list of what was ported and what was not please see What was Saved below.

Hosting the OSS projects

If your project was one of those migrated from CodeBetter, then you should already have it available on the new server. If any issues arise, please ping us at

We are conservatively adding new projects, but at a slower rate than with CodeBetter in that we want to make sure we can cater to a correct level of service that is required. If you’re looking at hosting a new project, please reach out to us at

What was saved

  • Projects and their settings. Project and build configuration IDs used in URLs are also left as they were except for conflicting cases where the “cb_” prefix was added to the IDs.
  • Users with non-view roles. The majority of user accounts with special permissions from continue to work with the same credentials. Some of the users who had the same usernames on server, need to use their credentials to login. Users with no special permissions: please create new account if you do not already have one.
  • History of builds and changes
  • 15% of the build logs and artifacts
  • The same “JetBrains” agents are connected to the server

Some changes

  • The server address. shows a move notice page, sub-URLs are redirected to server
  • Internal build- and change-level URLs (numeric IDs are remapped to new values)
  • Majority of the build logs and build artifacts are not present. It should be possible to rerun an important history build to get the same revision artifacts.
  • Old “CodeBetter” agents are no longer connected to the server
  • Several plugins are no longer available: GitHub issues, TeamCity.Node, Bazaar, CMake, GitHub status (use “Commit status publisher” instead)
  • New “from” in Email and Jabber notifications sent out by the server


We really appreciate all the effort that Anne Epstein put into maintaining the CodeBetter. We also want to thank James, Brendan, and all those involved throughout these years in bringing TeamCity to the .NET Open Source world.

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TeamCity 10 GitHub-Related Improvements

Configuring TeamCity to use GitHub as the source code repository has always been easy, especially since the feature ‘create from URL‘ was first introduced. TeamCity 10 has brought a number of improvements related to integration with GitHub, which are worth a special mention.

Project-level GitHub Connection in TeamCity

We’ve been gradually improving the integration, and in TeamCity 10 you can now set up a connection to GitHub on the project level:


Once the connection is set up, you can create a project or a build configuration pointing to a GitHub repository:connectionprojectlist

Besides, with the connection configured, a small GitHub icon becomes active in several places where a repository URL can be specified: create project from URL, create Git VCS root, GitHub issue tracker, create create VCS root from URL:


On clicking the icon, TeamCity will list GitHub repositories available to the user.

Configuring a GitHub connection is useful for the organization administrator who can create a parent project and configure a connection to GitHub there once; thus, all the TeamCity users of the organization will see a list of GitHub repositories URLs in the TeamCity Web UI. It makes setting up a subproject, a Git VCS root, or a GitHub issue tracker extremely easy.

GitHub Issue Tracker Integration in TeamCity

Built-in integration with GitHub issue tracker was also introduced in TeamCity 10. It is configured on the dedicated page of the project settings. If a project level connection to GitHub is configured, you can simply select the repository URL from the list available on clicking the GitHub icon:


If no connection is configured, the URL can be specified manually.

The rest is easy – select the type of authentication and provide the required information, tell TeamCity which strings should be recognized as references to issues: for GitHub, the regex syntax is used, e.g. #(\d+). TeamCity will resolve the issue number mentioned in a VCS comment and will display a link to this issue in the Web UI (e.g. on the Changes page, Issues tab of the build results page).

TeamCity Build Status in GitHub

Developers find it handy to view the status of their commits right in the repository. Earlier there were several external plugins allowing you to publish the TeamCity build status on GitHub, and in TeamCity 10 we delivered a bundled build feature, Commit Status Publisher, which automatically attaches the build status to your GitHub pull requests:


Besides, using the TeamCity REST API, you can publish the status icon of your TeamCity build in the README for your repository:


TeamCity Commit Hooks

All the above-mentioned improvements are bundled with TeamCity 10, but we should also mention the TeamCity Commit Hooks Plugin, not bundled with TeamCity yet. This plugin is compatible with TeamCity 10 or later. Its task is to install webhooks for GitHub repositories specified in TeamCity VCS roots.
Installed GitHub webhooks greatly decrease the time required for TeamCity to detect a change. As an additional benefit, webhooks reduce the load on both the TeamCity server and the GitHub server.


Take the advantage of the TeamCity-GitHub improved integration and let these features make your experience of Continuous Integration & Delivery with GitHub and TeamCity nice and smooth.

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TeamCity 2016 Plugin Contest Announcement

Greetings everyone!

We are pleased to announce TeamCity Plugin Contest 2016 lasting from October 6 to December 6! This is your chance not only to provide a missing integration or some cool feature for TeamCity, but also to get a guaranteed reward for participation and win much bigger prizes!

Create your own plugin and submit it to us by December 6, 2016! Our team of judges will evaluate all the submissions and grant the prizes. The results will be announced on December 15, 2016.

New to TeamCity plugin development and do not know where to start? Check out our Getting Started guide.

The countdown has started! We’ll keep you posted:  follow our blog and  check our Twitter account, the #TeamCityContest hashtag.

And one more thing: your plugin submissions will appear in our new experimental TeamCity plugin repository which has just been opened to the public.

We love getting your feedback – our forum and tracker are at your disposal!

Happy developing and building!

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Installing GitHub Webhooks from TeamCity

Greetings, everyone!

Since TeamCity 10.0 it has become possible to use commit hooks with a TeamCity server. Now, when a VCS change is detected via a commit hook, TeamCity automatically increases the VCS repository polling interval, reducing the load on both the TeamCity server and VCS repository. And obviously the presence of the hook greatly decreases the time needed to detect a change.

Unfortunately, installation and configuration of commit hooks is not an easy task and for on-premises VCS repositories it requires administration skills. At the same time, popular VCS hostings such as GitHub, support installation of commit hooks via their REST API, and installation of commit hooks for them can be a lot simpler, provided that we use such an API from TeamCity…

So today, we’d like to announce one more TeamCity plugin whose task is to install and maintain GitHub commit hooks (do not worry, we plan to add support for other VCS hosting services too).

The plugin supports both and GitHub Enterprise. The plugin does not install a webhook automatically for because a webhook requires a connection from to the TeamCity server, and in the majority of cases, when TeamCity is installed in the intranet, such a connection is blocked by a firewall. In case of GitHub Enterprise, the plugin will install a webhook automatically for any TeamCity project created from a URL or via GitHub integration.

The plugin works with the GitHub REST API and has to make API calls to GitHub on behalf of the current user, so it requires a GitHub connection configured in the project or its parent.

The plugin is quite simple, basically it does three things:

  • It shows a suggestion to install a GitHub webhook if it finds a GitHub repository in a project without such a webhook:webhook_suggestion
  • It provides a new action in the project actions menu for webhook installation enabling you to install or reinstall a webhook at any time: project_actions
  • It checks the status of all of the installed webhooks and raises a warning via the health report if some problem is detected:webhook_problem

The plugin is open source, distributed under the Apache 2.0 license. Most of the code is written in Kotlin. The source code is published on GitHub.

The plugin relies on the new TeamCity API and will only work with TeamCity 10.0 and later. Download the plugin, install it on your TeamCity server and try the plugin. We’ll appreciate your feedback!

Happy building!

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TeamCity 10.0.2 is out today

Greeting, everyone!

TeamCity 10.0.2, an update fixing over 200 issues, is available now.

Among the other improvements, build 42234 includes quite a few NuGet-related fixes and several enhancements in the Commit Status Publisher plugin; for the full list, see our release notes.

This bugfix release uses the same data format as the other 10.0.x builds, which means you are free to upgrade/downgrade within the latest major version, so just download TeamCity 10.0.2 and upgrade!

Happy upgrading and building!

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Webinar recording: Building Scalable, Repeatable Infrastructure in the Cloud

The recording of our August 30 webinar, Building Scalable, Repeatable Infrastructure in the Cloud, is now available on the JetBrains YouTube channel.

In this webinar, Paul Stack helps you design the deployment of your applications into AWS. He demonstrates, using Terraform, that the practices of Infrastructure as Code allow the most scalable and repeatable infrastructure. His demo is be based on deploying TeamCity in AWS using a hosted PostgreSQL database.


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August 30 live webinar: Building Scalable, Repeatable Infrastructure in the Cloud

Join us Tuesday, August 30th, 16:00 – 17:00 CEST (10:00 – 11:00 EDT) for our free live webinar, Building Scalable, Repeatable Infrastructure in the Cloud with Paul Stack.

In this webinar, Paul Stack will help you design the deployment of your applications into AWS. He will demonstrate, using Terraform, that the practices of Infrastructure as Code will allow the most scalable and repeatable infrastructure. His demo will be based on deploying TeamCity in AWS using a hosted PostgreSQL database.

Space is limited, please register now. There will be an opportunity to ask questions during the webinar.

About the presenter:

paulSRightPaul Stack is a London based infrastructure coder and has spoken at various events throughout the world about his passion for continuous integration, continuous delivery and good operational procedures and why they should be part of what developers and system administrators do on a day to day basis. He believes that reliably delivering software is as important as its development.

Paul’s passions are the DevOps and Continuous Delivery movements and how they help the entire business and its customers.

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TeamCity Digest #8


After some time, during which we released the anniversary TeamCity 10.0 (and then 10.0.1), we are resuming our TeamCity Digest series with the latest TeamCity-related blog posts and articles we’ve stumbled upon during the last couple of months.

Kevin Venter of Xero shares their team experience on running JMeter performance tests in TeamCity: Run JMeter performance tests on TeamCity.

Khalid Abuhakmeh, director of software development at RIMdev, has written a post describing how to run Gulp on a TeamCity build agent consistently every time, without installing it globally: Running Gulp On TeamCity.

Stéphane Erbrech has documented and shared his experience of using TeamCity official Docker images to run a TeamCity server and a Postgres database instance via Docker with data containers: Migrating TeamCity to docker with data containers.

On a similar note, @egregors shares Docker-compose configurations to set up a TeamCity server and minimal agent with PostgreSQL:

Jason St-Cyr of Sitecore recorded a quick screencast of using TeamCity shared resources feature:

A new TeamCity REST API client – FluentTC – has been developed and published by Boris Modylevsky: Feel free to try it out and contribute.

Another interesting publication is a piece on integrating a UI testing solution Ranorex with TeamCity. The problem is that it requires access to an interactive desktop, which TeamCity, running under a Windows System account, doesn’t provide by default: Integrating Ranorex with TeamCity using PsExec.

A Salesforce engineer’s story on running automated regression tests on multiple TeamCity projects, each one pointing to a different environment using the environmental variables approach: How to handle Visual Studio configurations through TeamCity.

Howard van Rooijen of Endjin, our partner, provides a set of instructions on working with TeamCity backups: A Step by Step Guide to Automating TeamCity Backups.

And here is a script by Richie Lee that uses TeamCity and Octopus Deploy APIs to raise defects if a TeamCity build has failed: Using TeamCity To Raise Octopus Defects Updated.

See all TeamCity Digests.

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TeamCity 10.0.1 Update

We have prepared a 10.0.1 bugfix update based on the feedback we received from those who upgraded. The most critical issues found in 10.0 were documented in the Known Issues section of Upgrade Notes and we provided patches for those affected. All the critical issues related to upgrade are now fixed in this 10.0.1 update. There are a lot of other fixes as well.

All the bugfix 10.0.x releases use the same data format and require a license covering 10.0 release date (21 July 2016), so you can upgrade and downgrade the server within 10.0.x releases freely.

Time to download 10.0.1 build 41078 and upgrade.

Happy building!

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Webinar recording: What’s New in TeamCity 10.0

The recording of our July 28 webinar, What’s New in TeamCity 10.0, is now available on the JetBrains YouTube channel.

In this webinar Wes Higbee goes over new and exciting features of the latest TeamCity release, TeamCity 10.0. He demonstrates creating projects and build configurations using TeamCity DSL; setting up a second node for handling running builds data; advancements in integrations with VCS; flaky test detection, and other new features of TeamCity.

Below is the precise timeline of the webinar and select Q&A:

Continue reading

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