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This file contains step-by-step instructions on how to run this playground project.

Pre requisites

You need to install the following before running this playground project:

  • Java 11
  • Maven
  • Docker

To run the local kafka setup using docker compose:

  • Docker compose

Or if you prefer to run local setup using kubernetes:

  • Kind
  • Kubectl

Run it - Local infra

You can run the local setup using kubernetes OR docker compose.

With kubernetes

If you need a bit more context on how to run the local setup using kubernetes, you can read this Kubernetes post

  1. Open a terminal and cd to the kubernetes folder.
  2. Inside kubernetes folder create a folder called "tmp" mkdir tmp, this is where the storage will be automatically provisioned by the default Kind storage class.
  3. Run kind specifying configuration: kind create cluster --config=kind-config.yml. This will start a kubernetes control plane + worker
  4. Run kubernetes configuration for kafka kubectl apply -f kafka-k8s
  5. When done stop kubernetes objects: kubectl delete -f kafka-k8s and then if you want also stop the kind cluster which: will also delete the storage on the host machine: kind delete cluster

With docker compose

  1. Run docker-compose up -d in the root folder of the project.

Run it - The application

  1. Build the application: mvn clean package
  2. Run it: mvn spring-boot:run

Calling endpoints

Some sample calls are provided in the test-data.http file. You can run those from IntelliJ directly or if you're using VSCode you can run them after installing the http extension (REST Client). You can also convert those simple callst to curl or httpie commands if that's your preference.

If you want to send multiple messages I recommend that you also check Apache ab tool.