You store source in Cloud Source Repositories and need managed CI that builds/tests on every commit with minimal ops. Which method should you use?

Cloud Build is Google Cloud's fully managed CI/CD platform, designed to integrate seamlessly with Cloud Source Repositories. By configuring a trigger on each commit, Cloud Build automatically executes your defined build steps (e.g., compile, test, deploy) without requiring you to manage any underlying infrastructure. This fulfills the requirement for managed CI with minimal operational overhead. Jenkins from the Marketplace or an open-source CI tool on a Compute Engine VM would require significant operational effort for setup, maintenance, and scaling, contradicting the "minimal ops" requirement. While a Pub/Sub trigger could initiate a build, Cloud Build offers a more direct and integrated solution for source-to-build workflows, making the App Engine service an unnecessary intermediary for this specific use case.