The Spring Cloud GCP project is currently in Alpha stage and improvements are being added to the published artifact on a daily basis.
We plan on creating a Milestone release soon. Until then, the Spring Cloud GCP project is available through Pivotal's Maven snapshot repository.
The Spring Cloud GCP project offers the following features:
Bill of Materials (BOM) for dependency version management
Spring message sending abstraction for Google Cloud Pub/Sub,
Spring Resource abstraction for Google Cloud Storage objects
Spring Integration channel adapters for Google Cloud Pub/Sub
Spring Boot Starters
Core GCP functionality like GCP project ID and credentials
Spring Cloud Config through Google Runtime Config API
Google Cloud Pub/Sub
Google Cloud SQL
Google Cloud Storage
Spring Cloud Sleuth integration with Google Stackdriver Trace