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smom-dbis-138/docs/azure/MULTI_REGION_DEPLOYMENT.md
defiQUG 1fb7266469 Add Oracle Aggregator and CCIP Integration
- Introduced Aggregator.sol for Chainlink-compatible oracle functionality, including round-based updates and access control.
- Added OracleWithCCIP.sol to extend Aggregator with CCIP cross-chain messaging capabilities.
- Created .gitmodules to include OpenZeppelin contracts as a submodule.
- Developed a comprehensive deployment guide in NEXT_STEPS_COMPLETE_GUIDE.md for Phase 2 and smart contract deployment.
- Implemented Vite configuration for the orchestration portal, supporting both Vue and React frameworks.
- Added server-side logic for the Multi-Cloud Orchestration Portal, including API endpoints for environment management and monitoring.
- Created scripts for resource import and usage validation across non-US regions.
- Added tests for CCIP error handling and integration to ensure robust functionality.
- Included various new files and directories for the orchestration portal and deployment scripts.
2025-12-12 14:57:48 -08:00

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Multi-Region Deployment Strategy

Overview

This deployment uses multi-region architecture with different VM families per region to maximize utilization of available quotas without requiring quota increases.

Subscription Information

  • Subscription ID: 6d3c4263-bba9-497c-8843-eae6c4e87192
  • Regions: West Europe, North Europe, France Central
  • Strategy: Distribute workload across regions using different VM families

Available Quotas by Region

West Europe (Primary)

VM Family Available Used Total
Standard DSv3 Family 4 6 10
Standard D Family 10 0 10
Standard Dv2 Family 10 0 10
Standard Dv2 Promo Family 10 0 10
Standard Dsv6 Family 10 0 10
Standard Av2 Family 10 0 10

Total Available: ~54 vCPUs across different families

Deployment Plan: West Europe

Node Pool VM Size Family Nodes vCPUs Quota Used
System Standard_D2s_v3 DSv3 2 4 DSv3: 4/10
Validators Standard_D4_v2 Dv2 2 8 Dv2: 8/10
Sentries Standard_D4s_v6 Dsv6 2 8 Dsv6: 8/10
RPC Standard_D8_v2 Dv2 1 8 Dv2: 8/10
Total 7 28 Within limits

North Europe (Secondary)

Node Pool VM Size Family Nodes vCPUs
System Standard_D2s_v3 DSv3 1 2
Validators Standard_D4_v2 Dv2 1 4
Sentries Standard_D4s_v6 Dsv6 1 4
RPC Standard_D8_v2 Dv2 1 8
Total 4 18

France Central (Tertiary)

Node Pool VM Size Family Nodes vCPUs
System Standard_D2s_v3 DSv3 1 2
Validators Standard_D4_v2 Dv2 1 4
Sentries Standard_D4s_v6 Dsv6 1 4
RPC Standard_D8_v2 Dv2 1 8
Total 4 18

Total Multi-Region Deployment

Region Nodes vCPUs
West Europe 7 28
North Europe 4 18
France Central 4 18
Total 15 64

VM Family Distribution

Why Different Families?

  1. Quota Optimization: Each VM family has separate quotas
  2. Cost Efficiency: Dv2 and Dsv6 families may have better pricing
  3. Availability: Reduces dependency on single family quota
  4. Performance: Different families for different workloads

VM Family Specifications

Family Characteristics Use Case
DSv3 Premium SSD, latest gen System nodes (low latency)
Dv2 Standard SSD, proven Validators, RPC (cost-effective)
Dsv6 Premium SSD, latest gen Sentries (high performance)

Deployment Steps

1. Enable Multi-Region Deployment

cd terraform
cp terraform.tfvars.multi-region terraform.tfvars

2. Review Configuration

Edit terraform/multi-region.tf to adjust:

  • Node counts per region
  • VM families per region
  • Regions to deploy

3. Initialize Terraform

terraform init

4. Plan Deployment

terraform plan -out=tfplan

5. Apply Deployment

terraform apply tfplan

Benefits of Multi-Region Deployment

  1. High Availability: Geographic redundancy
  2. Quota Utilization: Uses available quotas across regions
  3. Performance: Lower latency for regional users
  4. Disaster Recovery: Automatic failover capability
  5. Compliance: Data residency options

Network Architecture

Cross-Region Connectivity

  • VNet Peering: Connect VNets across regions
  • Private Endpoints: Secure cross-region communication
  • Application Gateway: Global load balancing
  • DNS: Multi-region DNS resolution

Traffic Distribution

  • Primary: West Europe (28 vCPUs, 7 nodes)
  • Secondary: North Europe (18 vCPUs, 4 nodes)
  • Tertiary: France Central (18 vCPUs, 4 nodes)

Cost Optimization

Estimated Monthly Costs (Approximate)

Region Resource Cost/Month
West Europe 7 nodes (mixed families) ~$500-700
North Europe 4 nodes (mixed families) ~$300-400
France Central 4 nodes (mixed families) ~$300-400
Total 15 nodes ~$1,100-1,500

Note: Costs vary based on VM sizes, usage, and Azure pricing

Monitoring

Multi-Region Monitoring

  • Azure Monitor: Cross-region metrics
  • Log Analytics: Centralized logging
  • Application Insights: End-to-end tracing
  • Grafana: Multi-region dashboards

Disaster Recovery

Failover Strategy

  1. Automatic: Kubernetes cluster autoscaling
  2. Manual: Traffic routing via Application Gateway
  3. DNS: Failover via Cloudflare DNS

Next Steps

  1. Review quota availability in all regions
  2. Configure multi-region Terraform
  3. Deploy primary region (West Europe)
  4. Deploy secondary regions (North Europe, France Central)
  5. Configure cross-region networking
  6. Set up global load balancing
  7. Configure monitoring and alerting

Troubleshooting

Quota Issues

If a region runs out of quota:

  1. Check alternative VM families
  2. Reduce node counts in that region
  3. Add additional regions
  4. Request quota increase for specific family

Network Issues

If cross-region connectivity fails:

  1. Verify VNet peering
  2. Check NSG rules
  3. Validate private endpoints
  4. Review Application Gateway configuration