/springbot_kafka_kubernetes-quickstart

Demo Java apps for several scenarios on Kubernetes

Primary LanguageJava

Demo Java Apps for Kubernetes Twitter

In this repository, you will find the simple Java apps to run on Kubernetes for a particular scenario. Currently, there are apps for:

  • Kafka (kafka directory)

In order to easily run the apps directly from the source you need to install skaffold.

Articles

I'm using those apps in the several articles on my blog. Here's the list:

  1. How to run and manage Kafka on Kubernetes with the Strimzi operator. We run two simple apps for sending messages (kafka/producer) and receiving them for Kafka topic (kafka/consumer). A detailed guide may be found in the following article: Apache Kafka on Kubernetes with Strimzi

Usage

In order to run the example apps you need to have:

  • JDK17+
  • Maven
  • Skaffold
  • Kubernetes cluster

Apache Kafka

Go to the kafka directory. It contains to sample apps: producer and consumer.

To run them on Kubernetes just execute:

skaffold run --tail

You can also automatically create and configure Kafka based on Strimzi by activating the kafka-strimzi profile:

skaffold run --tail -p kafka-strimzi

However, first you need to install Strimzi, e.g. using its Helm chart:

helm repo add strimzi https://strimzi.io/charts
helm install strimzi-kafka-operator strimzi/strimzi-kafka-operator