kubernetes-quickstart
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piomin
Demo Java apps for several scenarios on Kubernetes
Demo Java Apps for Kubernetes 
In this repository, you will find the simple Java apps to run on Kubernetes for a particular scenario. Currently, there are apps for:
- Kafka (
kafkadirectory)
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:
- 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
piomin