oen9/rr-kafka-example

request-response kafka example

rr-kafka-example

request-response kafka example

How to run

Local with kafka in docker

1. docker-compose up -d --scale kafka=3 zookeeper kafka
2. sbt and then reStart

Kubernetes

1. minikube start --cpus=4 --memory=6144
2. eval $(minikube docker-env)
3. sbt docker:publishLocal
4. kubectl apply -f kubernetes/kafka.yaml
5. minikube dashboard wait for kafka and zoo
6. kubectl apply -f kubernetes/app.yaml
7. minikube service gateway-service

API

example request

Local

GET http://localhost:8080/rr/hello

Kubernetes

GET http://gateway-service-ip:port/rr/hello e.g. http http://192.168.99.109:30825/rr/hello
using minikube you can minikube service gateway-service

example response

msg: 'hello' processed