This project aims to provide a simple demonstration of how event stream processing works with spring + kafka

• Docker/ Docker Compose
• Maven
• Java 8

1. Open terminal at project root
2. Run mvn clean install -Pinstall-docker

You should see build output that indicates the docker images are being created and stored in your local docker registry.

1. Open terminal and run docker-compose up

After running the docker-compose up command you will see three different output logs for each of the containers provided within the docker-compose.yml file.

The environment created consists of:

1. event-source with h2 embedded database
2. Apache kafka/ zookeeper container
3. event-log-sink

When docker compose successfully completes then the following will occur.

1. event-source checks the embedded database (every second) for unprocessed events
2. Unprocessed events will be placed onto the kafka events topic
3. event-log-sink will then process each event placed on the topic, by simpling outputting it to the logs (which you will see within the docker-compose up terminal)