Spring Cloud Kubernetes: FeignClient and Ribbon discovery in Kubernetes

Providing client-side load balancing for a microservice application using Netflix Ribbon and Netflix Feign as well. Fabric Kubernetes lib will find services(Not config list of servers) Using Ribbon discovery in Kubernetes spring-cloud-starter-kubernetes-netflix

Requirements

• Run on Kubernetes

Minikube IP: 192.168.99.100

hello-service: it is a service app. It has api

http://192.168.99.100:31090/get-greetings

Build hello-service

cd hello-service
mvn clean package

Docker build

cd hello-service
docker build -t nhatthai/hello-service .

Run service in Kubernetes(Using Minikube)

cd hello-service
kubectl create -f manifests/hello-service-configmap.yml
kubectl create -f manifests/hello-service.yml

client-service: Using Feign, connect to hello-service

http://192.168.99.100:31899/client-get-all-greetings

It will request to http://192.168.99.100:31090/get-greetings of hello-service

Build client-service

cd client-service
mvn clean package

Docker build

cd client-service
docker build -t nhatthai/client-service .

Run service in Kubernetes(Using Minikube)

cd client-service
kubectl create -f manifests/client-service-configmap.yml
kubectl create -f manifests/client-service.yml

Reference

Spring Cloud integration with Kubernetes