Your team stores code in Cloud Source Repositories and deploys services on GKE. You want fast feedback on bugs before production and automated builds. What should you implement?

Cloud Build is the correct choice because it's Google Cloud's fully managed CI/CD platform, designed to integrate seamlessly with Cloud Source Repositories and GKE. It can automatically trigger builds based on Git tags, creating container images and pushing them to a registry, providing fast feedback on code changes. Spinnaker is primarily a continuous delivery platform, excellent for complex deployments across multiple cloud environments, but Cloud Build is more direct and efficient for the initial build and containerization process within Google Cloud. Building from forked repositories with Cloud Build is possible but less common for a primary CI/CD pipeline focused on the main codebase and Git tags.