Google Cloud Deploy is a fully managed continuous delivery service that simplifies deploying applications to platforms like Google Kubernetes Engine (GKE), Cloud Run, and Anthos. It allows users to define delivery pipelines and manage the progression of releases through various environments such as testing, staging, and production. The service offers one-step promotion and rollback of releases via the web console, command-line interface, or application programming interface. As a fully managed service, Cloud Deploy requires no infrastructure setup and automatically scales to optimize cost and performance. It integrates seamlessly with Google Cloud's Identity and Access Management (IAM), Cloud Logging, and Cloud Audit Logs, providing a unified platform for monitoring and controlling release candidates across an organization. Additionally, Cloud Deploy supports integration with popular DevOps tools, including continuous integration systems and ticketing platforms.