Step 2: Architecture Assessment - static-webapp-test

Step 2: Architecture Assessment - static-webapp-test

Generated by architect agent | 2024-12-17

Requirements Validation ✅

All required information present - proceeding with assessment.

Executive Summary

A lightweight static web application with Azure SQL backend for internal workflow validation. Architecture optimized for cost while maintaining acceptable reliability for non-critical workloads.

Recommended Architecture

┌─────────────────────────────────────────────────────────────────┐
│                        Azure Static Web Apps                     │
│                         (Free Tier)                              │
│  ┌─────────────┐    ┌─────────────┐    ┌─────────────┐         │
│  │   Static    │    │   Azure     │    │   Azure     │         │
│  │   Content   │───▶│  Functions  │───▶│   SQL DB    │         │
│  │   (HTML/JS) │    │ (Integrated)│    │  (Basic S0) │         │
│  └─────────────┘    └─────────────┘    └─────────────┘         │
└─────────────────────────────────────────────────────────────────┘
                              │
                              ▼
                    ┌─────────────────┐
                    │  Azure AD       │
                    │  (Auth)         │
                    └─────────────────┘

WAF Pillar Assessment

Overall Scores

Primary Pillar Optimized: 💰 Cost Optimization
Trade-offs Accepted: Reduced reliability (no zone redundancy), limited scalability headroom

🔒 Security Assessment (7/10)

Strengths:

• Azure AD authentication (identity-first approach)
• HTTPS enforced by default on Static Web Apps
• SQL firewall restricts access to Azure services only
• No secrets in code (managed identity for SQL connection)

Gaps:

• No WAF (acceptable for internal tool)
• No private endpoints (cost prohibitive for budget)
• Basic threat protection only

Recommendations:

1. Enable Azure AD authentication in SWA configuration
2. Use managed identity for SQL connectivity
3. Enable SQL auditing (included in Basic tier)

🔄 Reliability Assessment (6/10)

Strengths:

• Static Web Apps has built-in global distribution
• Azure SQL Basic includes automated backups (7-day retention)
• 99.9% SLA achievable with selected services

Gaps:

• No zone redundancy (not cost-effective for budget)
• Single region deployment
• No failover strategy

Recommendations:

1. Implement connection retry logic in API code
2. Configure backup retention to meet 1-hour RPO
3. Document recovery procedures for 4-hour RTO

⚡ Performance Assessment (7/10)

Strengths:

• Static content served from global edge locations
• 5 DTU sufficient for projected 100 transactions/day
• Azure Functions cold start acceptable for internal tool

Gaps:

• SQL Basic tier has limited throughput
• No caching layer

Recommendations:

1. Implement client-side caching for static assets
2. Use efficient SQL queries with proper indexing
3. Monitor DTU utilization via Azure Monitor

💰 Cost Assessment (9/10)

Cost Optimization Applied:

• ✅ Free tier for Static Web Apps (vs Standard $9/mo)
• ✅ Basic/S0 SQL tier (vs General Purpose ~$100+/mo)
• ✅ Consumption-based Functions (vs Premium ~$120/mo)
• ✅ First 5GB Application Insights free

🔧 Operational Excellence Assessment (7/10)

Strengths:

• GitHub Actions CI/CD built into SWA
• Application Insights for monitoring
• Infrastructure as Code (Bicep)

Gaps:

• No advanced alerting configuration
• Manual scaling only

Recommendations:

1. Configure basic alerts for SQL DTU > 80%
2. Set up deployment slots for staging (if upgrading to Standard)
3. Implement health check endpoint

Resource SKU Recommendations

Architecture Decision Summary

Implementation Handoff

Ready for bicep-plan

The architecture is approved for implementation with the following key parameters:

region: swedencentral
environment: dev
budget: $50/month (estimated: $15.10)

resources:
  - Azure Static Web Apps (Free)
  - Azure SQL Database S0 (10 DTU)
  - Application Insights (Basic)
  - Log Analytics Workspace (Free tier)

security:
  - Azure AD authentication
  - Managed identity for SQL
  - HTTPS enforced

monitoring:
  - Application Insights
  - SQL DTU alerts at 80%

Approval Gate

🏗️ Architecture Assessment Complete

Pillar	Score
Security	7/10
Reliability	6/10
Performance	7/10
Cost	9/10
Operations	7/10

Estimated Monthly Cost: ~$15.10 (✅ MCP-verified)

Confidence Level: High (all requirements defined)

Reply "approve" to proceed to bicep-plan, or provide feedback for revisions.

Assessment performed using Azure Well-Architected Framework. Pricing data from Azure Pricing MCP (2024-12-17).