spring-micro-services

Introduction

In this application, tried to put in some of my learning of spring-micro-service. The challenges with spring-micro-services are

1. Bounded Context
2. Configuration Management
3. Dynamic Scale-Up and Scale-down
4. Visibility (Centralised log) and Monitoring
5. Fault Tolerance

Implementation Details

In order to resolve the above challenges, I have tried to implement

1. Configuration Management: Used the Spring Cloud Config Service - See repo

2. Dynamic Scale-up and Scale-Down: To achieve this feature, I've used Feign for easier rest clients Ribbon for client side load balancing Eureka for Naming server See repo1 repo2 repo3

3. Visibility (Centralised log): To achieve this feature, I have tried both ELK stack and Zipkin Distributed Tracing Monitoring: Used Netflix API Gateway ** Zuul** See repo

4. Fault Tolerance: Used Netflix API Hystrix See repo

Other features tried

1. Used the spring cloud bus and RabbitMQ feature Spring Cloud Bus links nodes of a distributed system with a lightweight message broker. This can then be used to broadcast state changes (e.g. configuration changes) or other management instructions.