Hybrid Cloud Architecture

Help me design a hybrid cloud architecture:

On-Premises Infrastructure: [DESCRIBE CURRENT DATA CENTER SETUP]
Cloud Provider: [AWS/GCP/AZURE]
Hybrid Drivers: [DATA SOVEREIGNTY/LATENCY/GRADUAL MIGRATION/BURST CAPACITY]
Workloads to Keep On-Premises: [LIST WORKLOADS]
Workloads to Move to Cloud: [LIST WORKLOADS]
Connectivity Requirements: [BANDWIDTH/LATENCY NEEDS]

Design the hybrid architecture across these six areas:

1. Connectivity Architecture
- Design dedicated connectivity using Direct Connect, Partner Interconnect, or ExpressRoute with redundancy. Plan VPN connectivity as backup or for initial deployment using site-to-site IPsec tunnels. Calculate bandwidth requirements based on data synchronization, application traffic, and burst needs. Design routing architecture for traffic steering between on-premises and cloud. Implement quality of service policies for prioritizing critical traffic on shared links. Plan for connectivity monitoring and failover procedures. Address latency requirements and geographic routing optimization. Document connectivity costs and compare dedicated versus VPN versus internet approaches.

2. Unified Compute Platform
- Evaluate cloud-on-premises extensions including AWS Outposts, Azure Stack, and Google Distributed Cloud. Design Kubernetes as a unified compute layer spanning on-premises and cloud using Anthos, Azure Arc, or EKS Anywhere. Plan workload placement policies based on latency, data gravity, and cost. Implement consistent deployment pipelines that target both environments. Design burst-to-cloud patterns for handling peak demand. Configure resource management and scheduling across hybrid infrastructure. Address licensing implications for software running across environments.

3. Data Strategy for Hybrid
- Design data synchronization between on-premises databases and cloud using DMS, replication, or ETL. Implement caching layers to reduce cross-environment data access latency. Plan for data gravity considerations keeping compute near the data it processes. Design a data lake strategy with data ingestion from on-premises sources to cloud storage. Address data classification determining which data can move to cloud versus what must stay on-premises. Implement data encryption for data in transit between environments. Design backup strategies that leverage cloud storage for on-premises data protection.

4. Identity and Security Integration
- Extend on-premises Active Directory or LDAP to cloud through federation. Design a unified security monitoring approach spanning both environments. Implement consistent network security policies using shared firewall rules and segmentation models. Configure certificate management across hybrid infrastructure. Design secrets management that works across both environments using Vault or equivalent. Implement unified vulnerability scanning and patch management. Address compliance requirements for data moving between environments.

5. Operations and Management
- Design a unified monitoring solution covering both on-premises and cloud infrastructure. Implement centralized logging aggregating logs from all environments. Configure a single CMDB or asset management system for hybrid inventory. Design unified incident management procedures for cross-environment issues. Implement configuration management consistency using Ansible, Chef, or Puppet across environments. Create operational dashboards providing visibility into hybrid infrastructure health. Plan for capacity management spanning on-premises physical constraints and cloud elastic scaling.

6. Migration and Evolution Path
- Design an incremental migration path for gradually shifting workloads to cloud. Implement the strangler fig pattern for migrating applications with minimal disruption. Plan for parallel running during migration with traffic splitting and comparison testing. Design rollback procedures for each migration phase. Create a decision framework for future workload placement decisions. Plan for eventual data center exit or right-sizing as workloads migrate. Address organizational change management and skills transition throughout the hybrid journey.

For each area provide architecture diagrams in text form, specific product and service selections, cost models comparing hybrid versus cloud-only, security considerations, and operational procedures.