In our example, if we navigate to the Tests tab of the TestReport build configuration, we will observe the list of tests that were executed in all the previous build configurations that belong to the same build chain.ДЄt first sight, snapshot dependency looks like a simple concept. The nice feature of the composite build configuration is that it also aggregates the test results from the dependencies.

The TestReport build configuration is also running, but it doesnвЂ™t occupy the build agent and will be marked as finished as soon as all the builds complete. Notice on the screenshot above that the two build configurations, Test1 and Test2, are running in parallel. As a result, there will be just one VCS trigger for the whole build chain. Now itвЂ™s possible to add a VCS trigger to that build configuration. The new configuration will be the last one in the build chain. In our example, we can create a composite build configuration that depends on Test1 and Test2 via a snapshot dependency. One very interesting property of this kind of build configuration is that it does not occupy a build agent during the execution. The purpose of the composite build configuration is to aggregate results from several other builds combined by snapshot dependencies, and present them in a single place. Should we add two triggers вЂ“ one to Test1 and the other to Test2? While it is certainly an option, there is a more idiomatic way to do that вЂ“ with the Composite type of build configuration. This leads us to the next question: how can we trigger such a build chain? Previously, we added the trigger to TodoImage as it was the last build configuration in the chain. The independent branches of the graph can be processed in parallel given that there are enough processing resources, i.e. Using the snapshot dependencies, we created a build chain which is actually a DAG вЂ“ Directed Acyclic Graph. Now the new aspect of snapshot dependencies is revealed. Since Test1 and Test2 do not depend on each other, TeamCity can execute these build configurations in parallel if there are build agents available. Both Test1 and Test2 have a snapshot dependency on TodoImage build configuration. We can create two build configurations, Test1 and Test2, which will execute the different groups of the tests. It would be nice to execute the groups of tests in parallel. Suppose there are a lot of tests and running those tests sequentially takes a lot of time. We created two build configurations: one builds the application and the other builds the Docker image. Previously, we started creating the build chain for the demo application. In this blog post, we describe how snapshot dependencies enable parallel builds. In the previous blog post, we learned about snapshot dependencies and how they can be applied to create build chains in TeamCity.

Teamcity branch filter