AWS to Azure Migration Guide

Real-world experience migrating an enterprise platform processing 30M+ events monthly from AWS to Azure with zero downtime.

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61 min total read time 7 chapters Intermediate to Advanced

Part I: Strategic Migration

1

Project Summary

Complete migration story: motivations, timeline, and business outcomes for LEAD's enterprise platform migration.

6 min Overview

Part II: Service Migration

2

ECS & EC2 to Azure App Service

Container migration strategy, App Service features, deployment slots, and production deployment patterns.

15 min Migration Guide ECS → App Service
3

WordPress on Bitnami to App Service

Migrating WordPress from Bitnami to Azure App Service, Static App Service, and Storage configuration.

8 min Migration Guide Bitnami WordPress → App Service
4

Static Sites & CDN Migration

Static website migration to Azure Static Web Apps, CDN setup, and performance optimization.

13 min Migration Guide S3 → Static Apps

Part III: Database Migration

5

Database Migration Strategy

Zero-downtime PostgreSQL migration, write-audit triggers, timing strategies, and data integrity validation.

15 min Migration Guide RDS → Azure Database

Part IV: Network & Infrastructure

6

Azure DNS Zones Setup

DNS Zone configuration, internal service routing, A record management, and networking advantages.

3 min Migration Guide Route 53 → DNS Zones

Part V: Machine Learning

7

Machine Learning Migration

AWS SageMaker to Azure Machine Learning migration, model deployment, and ML infrastructure optimization.

1 min Coming Soon SageMaker → Azure ML

Technical Reference

Migration Matrix

AWS Service Azure Service Complexity Guide
ECS/EC2 App Service Medium Chapter 2
Lightsail (WordPress) App Service Medium Chapter 3
S3 Blob Storage Low Chapter 4
RDS PostgreSQL Azure Database High Chapter 5
Route 53 DNS Zones Medium Chapter 6
SageMaker Azure Machine Learning High Chapter 7

Key Lessons Learned

⚠️

Azure NAT Throughput

Requires thorough testing to understand real world performance

✓

Deployment Slots

Excellent for zero-downtime deployments and testing changes before going live.

⚠️

Region Consistency

Prevent region drift early - consolidation reduces latency and operational complexity.

✓

Centralized Monitoring

Azure Monitor + App Insights provides comprehensive visibility without extra setup.