- gateway-service: Zuul
- discovery-service: Eureka Server
- greeting-service, board-service, unstable-service: Eureka Client
- board-service implements FeignClient and Hystrix Circuit break feature
- Zuul Routing
http://localhost:8080/greeting-service/hello
http://localhost:8080/unstable-service/hello
- FeignClient
board-service call greeting-service's hello api)
http://localhost:8080/board-service/greeting/hello
- Hystrix Circuit Breaker
- shutdown unstable-service
http://localhost:8080/board-service/unstable/hello