Request Routing
Request Routing을 통해 특정 버전의 서비스로 트래픽을 라우팅하는 방법을 실습합니다.
실습 목표
http://$GATEWAY_URL_EXTERNAL/productpage에 접속하여:
- v1 적용 후 새로고침하여 v1으로 고정되는지 확인
- 사용자 계정(jason/jason)으로 로그인 후 v1으로 유지되는지 확인
- v2 적용 후 새로고침, 로그아웃 후 예상과 같이 동작하는지 확인
- (선택) Kiali에서 요청이 v1으로만 가는지 확인
모든 요청을 reviews:v1으로 라우팅
kubectl apply -f https://raw.githubusercontent.com/istio/istio/release-1.18/samples/bookinfo/networking/virtual-service-all-v1.yaml -n bookinfo
virtual-service-all-v1.yaml 내용 보기
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
name: productpage
spec:
hosts:
- productpage
http:
- route:
- destination:
host: productpage
subset: v1
---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
name: reviews
spec:
hosts:
- reviews
http:
- route:
- destination:
host: reviews
subset: v1
---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
name: ratings
spec:
hosts:
- ratings
http:
- route:
- destination:
host: ratings
subset: v1
---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
name: details
spec:
hosts:
- details
http:
- route:
- destination:
host: details
subset: v1
---
jason 사용자만 reviews:v2로 라우팅
kubectl apply -f https://raw.githubusercontent.com/istio/istio/release-1.18/samples/bookinfo/networking/virtual-service-reviews-test-v2.yaml -n bookinfo
virtual-service-reviews-test-v2.yaml 내용 보기
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
name: reviews
spec:
hosts:
- reviews
http:
- match:
- headers:
end-user:
exact: jason
route:
- destination:
host: reviews
subset: v2
- route:
- destination:
host: reviews
subset: v1
리소스 정리
kubectl delete -f https://raw.githubusercontent.com/istio/istio/release-1.18/samples/bookinfo/networking/virtual-service-reviews-test-v2.yaml -n bookinfo
kubectl delete -f https://raw.githubusercontent.com/istio/istio/release-1.18/samples/bookinfo/networking/virtual-service-all-v1.yaml -n bookinfo