https://techcrunch.com/2018/07/26/github-and-google-reaffirm-partnership-with-cloud-build-ci-cd-tool-integration/

When Microsoft acquired GitHub for $7.5 billion smackeroos in June, it sent some shock waves through the developer community as it is a key code repository. Google certainly took notice, but the two companies continue to work closely together. Today at Google Next, they announced an expansion of their partnership around Google’s new CI/CD tool, Cloud Build, which was unveiled this week at the conference.

Politics aside, the purpose of the integration is to make life easier for developers by reducing the need to switch between tools. If GitHub recognizes a Docker file without a corresponding CI/CD tool, the developer will be prompted to grab one from the GitHub Marketplace with Google Cloud Build offered prominently as one of the suggested tools.