This random Number Generator generates a random number and sends it to a kafka topic with key: and value:
install homebrew: https://brew.sh/
Install Java, Docker, IntelliJ, k9s, ...
brew install openjdk k9s kafka gradle kubernetes-cli micronaut
brew install --cask intellij-idea-ce docker
Get a docker account and setup the "number-merger-kafka-streams" repo
Configure docker to run kubernetes (k8s) -> See Settings of Docker
start zookeeper
zookeeper-server-start kafka-config/zookeeper.properties &
start kafka
kafka-server-start kafka-config/server.properties &
Change the docker image path in your build.gradle and k8s.yml. Login to your Docker Desktop application.
./gradlew clean build jib
kubectl create namespace dev
kubectl apply -f k8s.yml -n dev
See log form pod
kubectl get pods -n dev
kubectl logs number-merger-kafka-streams-<something-something> -n dev -f
Read from Kafka
kafka-console-consumer --bootstrap-server localhost:9092 --topic random-number-1-v1 --property key=value --property print.key=true --property key.separator="-" --from-beginning
Stop Kafka
zookeeper-server-stop && kafka-server-stop
https://docs.micronaut.io/latest/guide/
https://micronaut-projects.github.io/micronaut-kafka/latest/guide/