Check the blog for more details

Start with Docker Compose

• git clone https://github.com/abhirockzz/kafka-websocket.git
• cd dashboard and mvn clean install - creates kafka-websocket.war in target directory
• cd producer and mvn clean install - creates kafka-producer.jar in target directory
• cd .. and docker-compose up --build - starts Kafka, Zookeeper, Payara and Producer containers (you can switch to any other Java EE runtime)
  • Kafka accessible @ 9092
  • Zookeeper @ 2181
  • Producer starts pushing records to Kafka topics (auto creates topic-1, topic-2)
  • Port 8080 exposed from Payara container

Wait for the containers to startup before you move to the testing part...

Test

• docker-machine ip - get the IP address of your Docker host. Let's call it APP_HOST
• Open your browser and go to http://<APP_HOST>:8080/kafka-websocket/. Enter topic-1 or topic-2 in subscription input text box. You will start seeing the records being produced by the producer for that topic
  • You can open multiple such clients/browser windows/tabs and subscribe to either of these topics

• docker-compose down -v once you're done....