Step-by-step architectural guidelines for decoupling monolithic backends into high-throughput containerized microservices.
Why Containerize Node.js Services?
Containerization ensures consistent runtime environments from local development machines to AWS/GCP cloud clusters. Docker eliminates "works on my machine" issues while supporting rapid horizontal auto-scaling.
Core Architecture Principles
- Single Responsibility per Service: Keep auth, payment processing, and notification workers isolated.
- Stateless Microservices: Store session states in Redis clusters to enable instance scaling.
- Asynchronous Event Queues: Use RabbitMQ or Kafka for decoupled, non-blocking service communications.