EHR Healthcare is transitioning from colocation facilities to Google Cloud to scale their environment, improve disaster recovery, and enhance continuous deployment capabilities. The company's customer-facing applications are web-based and containerized, running on Kubernetes clusters with data stored in relational and NoSQL databases. They require a minimum 99.9% availability for all systems, a secure and high-performance connection between on-premises systems and Google Cloud, and centralized visibility for system performance and usage. Given these requirements, how should you define the technical architecture for hybrid connectivity between EHR's on-premises systems and Google Cloud, following Google's recommended practices for production-level applications?