kowl

Kowl - Web UI for local Apache Kafka development

This sample demonstrates how to explore messages, consumers and configurations of Apache Kafka cluster using Kowl Web UI.

Components

• Kowl

Dashboards

Kowl - Topics Page	Kowl - Consumer Groups

Getting Started

Prerequisites

• Java 11
• Docker

Build

• Build sample Kafka application using below command:

  ./gradlew bootBuildImage

Usage

• Run the docker compose stack.

  cd ./docker/kowl
  docker compose up -d

• Check if all components are running.

  docker compose ps
  
  #   NAME                   SERVICE                STATUS              PORTS
  # kafka                  kafka                  running             0.0.0.0:9092->9092/tcp, :::9092->9092/tcp, 0.0.0.0:9101->9101/tcp, :::9101->9101/tcp
  # kafka-monitoring-app   kafka-monitoring-app   running             0.0.0.0:7777->7777/tcp, :::7777->7777/tcp
  # kowl                   kowl                   running             0.0.0.0:8080->8080/tcp, :::8080->8080/tcp
  # zookeeper              zookeeper              running             0.0.0.0:2181->2181/tcp, :::2181->2181/tcp, 2888/tcp, 3888/tcp

• Open your web browser and go to Kowl Web UI.

• Stop docker compose stack.

  docker compose down -v

Important Endpoints

Name	Endpoint
Kowl Web UI	http://localhost:8080/

References

• cloudhut/kowl