https://github.com/piomin/kubernetes-quickstart

Demo Java apps for several scenarios on Kubernetes
https://github.com/piomin/kubernetes-quickstart

java jib kafka kubernetes skaffold spring-boot

Last synced: 20 days ago
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Demo Java apps for several scenarios on Kubernetes

• Host: GitHub
• URL: https://github.com/piomin/kubernetes-quickstart
• Owner: piomin
• Created: 2023-11-06T08:37:55.000Z (about 1 year ago)
• Default Branch: master
• Last Pushed: 2024-10-09T19:46:16.000Z (about 1 month ago)
• Last Synced: 2024-10-10T20:54:58.050Z (about 1 month ago)
• Topics: java, jib, kafka, kubernetes, skaffold, spring-boot
• Language: Java
• Homepage: https://piotrminkowski.com/
• Size: 37.1 KB
• Stars: 22
• Watchers: 3
• Forks: 7
• Open Issues: 3
• Metadata Files:
  • Readme: README.md

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README

        
# Demo Java Apps for Kubernetes [![Twitter](https://img.shields.io/twitter/follow/piotr_minkowski.svg?style=social&logo=twitter&label=Follow%20Me)](https://twitter.com/piotr_minkowski)

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](https://piotrminkowski.com/2023/11/06/apache-kafka-on-kubernetes-with-strimzi/)

## Usage

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

- JDK17+

- Maven

- [Skaffold](https://skaffold.dev/)

- Kubernetes cluster

### Apache Kafka

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

To run them on Kubernetes just execute:

```shell

skaffold run --tail 

```

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

```shell

skaffold run --tail -p kafka-strimzi 

```

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

```shell

helm repo add strimzi https://strimzi.io/charts

helm install strimzi-kafka-operator strimzi/strimzi-kafka-operator 

```