feat: comprehensive project structure improvements and Cloud for Sovereignty landing zone
- Add Cloud for Sovereignty landing zone architecture and deployment - Implement complete legal document management system - Reorganize documentation with improved navigation - Add infrastructure improvements (Dockerfiles, K8s, monitoring) - Add operational improvements (graceful shutdown, rate limiting, caching) - Create comprehensive project structure documentation - Add Azure deployment automation scripts - Improve repository navigation and organization
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docs/architecture/CLOUD_FOR_SOVEREIGNTY_LANDING_ZONE.md
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docs/architecture/CLOUD_FOR_SOVEREIGNTY_LANDING_ZONE.md
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# Cloud for Sovereignty Landing Zone Architecture
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**Last Updated**: 2025-01-27
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**Management Group**: SOVEREIGN-ORDER-OF-HOSPITALLERS
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**Framework**: Azure Well-Architected Framework + Cloud for Sovereignty
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**Status**: Planning Phase
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## Executive Summary
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This document outlines a comprehensive Cloud for Sovereignty landing zone architecture for The Order, designed using Azure Well-Architected Framework principles. The architecture spans all non-US Azure commercial regions to ensure data sovereignty, compliance, and operational resilience.
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## Management Group Hierarchy
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```
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SOVEREIGN-ORDER-OF-HOSPITALLERS (Root)
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├── Landing Zones
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│ ├── Platform (Platform team managed)
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│ ├── Sandbox (Development/testing)
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│ └── Workloads (Application workloads)
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├── Management
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│ ├── Identity (Identity and access management)
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│ ├── Security (Security operations)
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│ └── Monitoring (Centralized monitoring)
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└── Connectivity
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├── Hub Networks (Regional hubs)
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└── Spoke Networks (Workload networks)
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```
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## Well-Architected Framework Pillars
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### 1. Cost Optimization
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**Principles:**
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- Right-sizing resources per region
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- Reserved instances for predictable workloads
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- Spot instances for non-critical workloads
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- Cost allocation tags for chargeback
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- Budget alerts and governance
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**Implementation:**
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- Cost Management budgets per management group
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- Azure Advisor recommendations
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- Resource tagging strategy
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- Reserved capacity planning
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### 2. Operational Excellence
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**Principles:**
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- Infrastructure as Code (Terraform)
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- Automated deployments (GitHub Actions)
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- Centralized logging and monitoring
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- Runbooks and playbooks
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- Change management processes
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**Implementation:**
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- Terraform modules for repeatable deployments
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- CI/CD pipelines for infrastructure
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- Azure Monitor and Log Analytics
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- Azure Automation for runbooks
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### 3. Performance Efficiency
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**Principles:**
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- Regional proximity for low latency
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- CDN for global content delivery
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- Auto-scaling for dynamic workloads
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- Performance monitoring and optimization
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- Database query optimization
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**Implementation:**
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- Multi-region deployment
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- Azure Front Door for global routing
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- Azure CDN for static assets
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- Application Insights for performance tracking
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### 4. Reliability
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**Principles:**
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- Multi-region redundancy
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- Availability Zones within regions
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- Automated failover
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- Disaster recovery procedures
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- Health monitoring and alerting
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**Implementation:**
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- Primary and secondary regions
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- Geo-replication for storage
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- Traffic Manager for DNS failover
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- RTO: 4 hours, RPO: 1 hour
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### 5. Security
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**Principles:**
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- Zero-trust architecture
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- Defense in depth
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- Data encryption at rest and in transit
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- Identity and access management
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- Security monitoring and threat detection
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**Implementation:**
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- Azure AD for identity
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- Key Vault for secrets management
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- Network Security Groups and Azure Firewall
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- Microsoft Defender for Cloud
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- Azure Sentinel for SIEM
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## Cloud for Sovereignty Requirements
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### Data Residency
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- **Requirement**: All data must remain within specified regions
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- **Implementation**:
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- Resource location policies
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- Storage account geo-replication controls
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- Database replication restrictions
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### Data Protection
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- **Requirement**: Encryption and access controls
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- **Implementation**:
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- Customer-managed keys (CMK)
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- Azure Key Vault with HSM
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- Private endpoints for services
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### Compliance
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- **Requirement**: GDPR, eIDAS, and regional compliance
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- **Implementation**:
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- Compliance policies and initiatives
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- Audit logging and retention
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- Data classification and labeling
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### Operational Control
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- **Requirement**: Sovereign operations and control
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- **Implementation**:
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- Management group hierarchy
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- Policy-based governance
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- Role-based access control (RBAC)
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## Regional Architecture
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### Supported Regions (Non-US Commercial)
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1. **West Europe** (Netherlands) - Primary
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2. **North Europe** (Ireland) - Secondary
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3. **UK South** (London) - UK workloads
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4. **Switzerland North** (Zurich) - Swiss workloads
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5. **Norway East** (Oslo) - Nordic workloads
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6. **France Central** (Paris) - French workloads
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7. **Germany West Central** (Frankfurt) - German workloads
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### Regional Deployment Pattern
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Each region follows the same pattern:
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```
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Region
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├── Hub Network (VNet)
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│ ├── Gateway Subnet (VPN/ExpressRoute)
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│ ├── Azure Firewall Subnet
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│ └── Management Subnet
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├── Spoke Networks (Workloads)
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│ ├── Application Subnet
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│ ├── Database Subnet
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│ └── Storage Subnet
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├── Key Vault (Regional)
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├── Storage Account (Regional)
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├── Database (Regional)
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└── AKS Cluster (Regional)
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```
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## Landing Zone Components
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### 1. Identity and Access Management
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- **Azure AD Tenant**: Single tenant per sovereignty requirement
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- **Management Groups**: Hierarchical organization
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- **RBAC**: Role-based access control
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- **Conditional Access**: Location-based policies
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- **Privileged Identity Management**: Just-in-time access
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### 2. Network Architecture
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- **Hub-and-Spoke**: Centralized connectivity
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- **Azure Firewall**: Centralized security
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- **Private Endpoints**: Secure service access
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- **VPN/ExpressRoute**: Hybrid connectivity
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- **Network Watcher**: Monitoring and diagnostics
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### 3. Security and Compliance
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- **Microsoft Defender for Cloud**: Security posture management
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- **Azure Sentinel**: SIEM and SOAR
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- **Key Vault**: Secrets and certificate management
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- **Azure Policy**: Governance and compliance
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- **Azure Blueprints**: Standardized deployments
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### 4. Monitoring and Logging
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- **Log Analytics Workspaces**: Regional workspaces
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- **Application Insights**: Application monitoring
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- **Azure Monitor**: Infrastructure monitoring
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- **Azure Service Health**: Service status
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- **Azure Advisor**: Best practice recommendations
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### 5. Backup and Disaster Recovery
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- **Azure Backup**: Centralized backup
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- **Azure Site Recovery**: DR orchestration
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- **Geo-replication**: Cross-region replication
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- **Backup Vault**: Regional backup storage
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### 6. Governance
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- **Azure Policy**: Resource compliance
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- **Azure Blueprints**: Standardized environments
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- **Cost Management**: Budget and cost tracking
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- **Resource Tags**: Organization and chargeback
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- **Management Groups**: Hierarchical governance
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## Resource Organization
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### Naming Convention
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```
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{provider}-{region}-{resource}-{env}-{purpose}
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Examples:
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- az-we-rg-dev-main (Resource Group)
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- azwesadevdata (Storage Account)
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- az-we-kv-dev-main (Key Vault)
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- az-we-aks-dev-main (AKS Cluster)
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```
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### Tagging Strategy
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Required tags for all resources:
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- `Environment`: dev, stage, prod
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- `Project`: the-order
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- `Region`: westeurope, northeurope, etc.
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- `ManagedBy`: terraform
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- `CostCenter`: engineering
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- `Owner`: platform-team
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- `DataClassification`: public, internal, confidential, restricted
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- `Compliance`: gdpr, eidas, regional
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## Deployment Strategy
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### Phase 1: Foundation (Weeks 1-2)
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- Management group hierarchy
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- Identity and access management
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- Core networking (hub networks)
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- Key Vault setup
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- Log Analytics workspaces
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### Phase 2: Regional Deployment (Weeks 3-6)
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- Deploy to primary region (West Europe)
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- Deploy to secondary region (North Europe)
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- Set up geo-replication
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- Configure monitoring
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### Phase 3: Multi-Region Expansion (Weeks 7-10)
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- Deploy to remaining regions
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- Configure regional failover
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- Set up CDN endpoints
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- Implement traffic routing
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### Phase 4: Workload Migration (Weeks 11-14)
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- Migrate applications
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- Configure application networking
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- Set up application monitoring
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- Performance optimization
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### Phase 5: Optimization (Weeks 15-16)
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- Cost optimization
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- Performance tuning
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- Security hardening
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- Documentation and runbooks
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## Cost Estimation
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### Per Region (Monthly)
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- **Networking**: $500-1,000
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- **Compute (AKS)**: $1,000-3,000
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- **Storage**: $200-500
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- **Database**: $500-2,000
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- **Monitoring**: $200-500
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- **Security**: $300-800
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- **Backup**: $100-300
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**Total per region**: $2,800-8,100/month
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### Multi-Region (7 regions)
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- **Development**: ~$20,000/month
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- **Production**: ~$50,000/month
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## Security Considerations
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### Data Sovereignty
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- All data stored within specified regions
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- No cross-region data transfer without encryption
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- Customer-managed keys for encryption
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- Private endpoints for all services
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### Access Control
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- Zero-trust network architecture
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- Conditional access policies
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- Multi-factor authentication
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- Just-in-time access
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- Privileged access management
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### Compliance
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- GDPR compliance
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- eIDAS compliance
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- Regional data protection laws
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- Audit logging (90 days retention)
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- Data classification and handling
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## Monitoring and Alerting
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### Key Metrics
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- Resource health
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- Cost trends
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- Security alerts
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- Performance metrics
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- Compliance status
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### Alert Channels
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- Email notifications
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- Azure Monitor alerts
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- Microsoft Teams integration
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- PagerDuty (for critical alerts)
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## Disaster Recovery
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### RTO/RPO Targets
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- **RTO**: 4 hours
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- **RPO**: 1 hour
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### DR Strategy
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- Primary region: West Europe
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- Secondary region: North Europe
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- Backup regions: Other regional hubs
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- Automated failover for critical services
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- Manual failover for non-critical services
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## Next Steps
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1. **Review and Approve Architecture**
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2. **Set Up Management Group Hierarchy**
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3. **Deploy Foundation Infrastructure**
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4. **Configure Regional Networks**
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5. **Deploy Regional Resources**
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6. **Set Up Monitoring and Alerting**
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7. **Implement Security Controls**
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8. **Migrate Workloads**
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9. **Optimize and Tune**
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---
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**Last Updated**: 2025-01-27
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**Next Review**: After Phase 1 completion
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