hybrid-cloud

## What I do - Design hybrid cloud architectures combining on-prem and cloud - Implement workload migration strategies - Configure hybrid networking (VPN, Direct Connect, ExpressRoute) - Manage unified identity across environments - Build disaster recovery across clouds - Optimize workload placement ## When to use me - When migrating workloads to cloud gradually - When regulatory requirements mandate on-premises data - When building disaster recovery solutions - When running sensitive workloads on-prem with cloud burst - When implementing multi-cloud strategies - When extending data center capacity elastically ## Key Concepts ### Architecture Patterns ``` ┌─────────────────────────────────────────────────────────┐ │ Load Balancer │ └─────────────────────┬───────────────────────────────────┘ │ ┌────────────┼────────────┐ │ │ │ ▼ ▼ ▼ ┌─────────┐ ┌─────────┐ ┌─────────┐ │ On-Prem │ │ AWS │ │ Azure │ │ K8s │ │ EKS │ │ AKS │ │ Cluster │ │ Cluster │ │ Cluster │ └────┬────┘ └────┬────┘ └────┬────┘ │ │ │ └────────────┼────────────┘ │ ┌──────▼──────┐ │ Database │ │ (RDS/Cloud) │ └─────────────┘ ``` ### AWS Outposts ```hcl # Outposts configuration resource "aws_outposts_instance" "app" { instance_type = "m5.large" outpost_arn = aws_outposts_outpost.example.arn placement_group_strategy = "cluster" root_volume { size = 100 type = "gp2" } network_interface { network_interface_id = aws_network_interface.example.id device_index = 0 } } ``` ### Azure Arc ```bash # Connect on-prem cluster to Azure Arc az connectedk8s connect \ --name my-cluster \ --resource-group my-rg \ --location eastus # Enable Azure Arc services az k8s-extension create \ --cluster-name my-cluster \ --resource-group my-rg \ --extension-type "Microsoft.AzureDataBox" \ --name "azure-arc-data-services" ``` ### Hybrid Networking ```hcl # AWS VPN connection resource "aws_vpn_connection" "onprem" { vpn_gateway_id = aws_vpn_gateway.main.id customer_gateway_id = aws_customer_gateway.onprem.id type = "ipsec.1" static_routes_only = true tunnel1_preshared_key = "secret1" tunnel2_preshared_key = "secret2" static_routes { destination_cidr_block = "10.0.0.0/16" } } # GCP Cloud Interconnect resource "google_compute_interconnect_attachment" "onprem" { name = "hybrid-interconnect" region = "us-central1" router = google_compute_router.main.name interconnect = "volcareno interc 1" } ``` ### Unified Identity ```yaml # AWS IAM Roles Anywhere for on-prem - role: arn: arn:aws:iam::123456789012:role/CrossCloudRole credential_source: environment: name: AWS_ACCESS_KEY_ID certificate: name: AWS_CERTIFICATE_FILE ``` ### Workload Migration 1. **Assess**: Inventory workloads, dependencies 2. **Plan**: Design target architecture 3. **Migrate**: Lift-and-shift or re-architect 4. **Validate**: Test functionality and performance 5. **Cutover**: Switch production traffic 6. **Optimize**: Right-size and optimize ### Data Synchronization ```python class HybridDataSync: def sync_to_cloud(self, data): # Local processing processed = self.process(data) # Batch upload self.cloud_client.upload_batch(processed) # Maintain local copy self.local_store.store(processed) def resolve_conflicts(self, local, cloud): # Last-write-wins or custom logic if local.timestamp > cloud.timestamp: return local return cloud ``` ### Benefits and Challenges | Benefits | Challenges | |----------|------------| | Flexibility | Network complexity | | Gradual migration | Security management | | Regulatory compliance | Data sovereignty | | Burst capacity | Latency considerations | | Disaster recovery | Unified monitoring | | Best-of-breed services | Skill requirements |