Why migrate?
Monolith systems face issues when scaling and developing. Migrating to microservices helps solve many of these challenges.
- Difficult to scale parts
- Complex deployment
- Team conflicts when working on same codebase
- Technology lock-in
Migration Strategy
1. Strangler Fig Pattern
- Keep monolith, build new microservices
- Gradually migrate functionality
- Eventually remove monolith
2. Database per Service
- Each microservice has its own database
- Use event-driven to sync data
- Avoid shared database anti-pattern
3. API Gateway
- Kong, Spring Cloud Gateway
- Centralized authentication/authorization
- Rate limiting, load balancing
Challenges and Solutions
Distributed Transactions
- Use Saga pattern
- Eventual consistency
- Compensating transactions
Service Discovery
Eureka, Consul, Kubernetes Service Discovery
Configuration Management
- Spring Cloud Config
- Externalized configuration
Conclusion
Migration to microservices requires careful planning, should not rush. Start with clear bounded context, then expand gradually. If you need microservices architecture consulting, please contact for support.