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UI for Apache Kafka logo UI for Apache Kafka – Free Web UI for Apache Kafka  

UI for Apache Kafka Price Free

UI for Apache Kafka is a free open-source web UI for monitoring and management of Apache Kafka clusters.

UI for Apache Kafka is a simple tool that makes your data flows observable, helps find and troubleshoot issues faster and deliver optimal performance. Its lightweight dashboard makes it easy to track key metrics of your Kafka clusters - Brokers, Topics, Partitions, Production, and Consumption.

Set up UI for Apache Kafka with just a couple of easy commands to visualize your Kafka data in a comprehensible way. You can run the tool locally or in the cloud.

UI for Apache Kafka interface dashboard screenshot

Features

  • Multi-Cluster Management — monitor and manage all your clusters in one place
  • Performance Monitoring with Metrics Dashboard — track key Kafka metrics with a lightweight dashboard
  • View Kafka Brokers — view topic and partition assignments, controller status
  • View Kafka Topics — view partition count, replication status, and custom configuration
  • View Consumer Groups — view per-partition parked offsets, combined and per-partition lag
  • Browse Messages — browse messages with JSON, plain text and Avro encoding
  • Dynamic Topic Configuration — create and configure new topics with dynamic configuration
  • Configurable Authentification — secure your installation with optional Github/Gitlab/Google OAuth 2.0

Getting Started

To run UI for Apache Kafka, you can use a pre-built Docker image or build it locally.

Running From Docker Image

The official Docker image for UI for Apache Kafka is hosted here: hub.docker.com/r/provectuslabs/kafka-ui.

Launch Docker container in the background:

docker run -p 8080:8080 \
	-e KAFKA_CLUSTERS_0_NAME=local \
	-e KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS=kafka:9092 \
	-d provectuslabs/kafka-ui:latest 

Then access the web UI at http://localhost:8080.
Further configuration with environment variables - see environment variables

Docker Compose

If you prefer to use docker-compose please refer to the documentation.

Building With Docker

Steps to build UI for Apache Kafka locally with Docker:

  1. Install prerequisites: Java and Docker
  2. Clone this repository and open a terminal in the directory of the project
  3. Build a Docker container with UI for Apache Kafka
  4. Start UI for Apache Kafka with your Kafka clusters
  5. Navigate to UI for Apache Kafka

Prerequisites

  • Java 13 or newer
  • Docker

Installing Prerequisites on Mac

  1. Install Homebrew Cask:
> brew update
  1. Install JAVA 13 with Homebrew Cask:
> brew tap adoptopenjdk/openjdk
> brew install adoptopenjdk13

Building

Once you installed the prerequisites and cloned the repository, run the following commands in your project directory:

Build a Docker container with UI for Apache Kafka:

./mvnw clean install -Pprod

Start UI for Apache Kafka with your Kafka clusters:

docker-compose -f ./docker/kafka-ui.yaml up

To see UI for Apache Kafka, navigate to http://localhost:8080.

If you want to start only kafka-clusters:

docker-compose -f ./docker/kafka-clusters-only.yaml up

Then start UI for Apache Kafka with a local profile.

Running Locally Without Docker

./mvnw spring-boot:run -Pprod

Running in Kubernetes

helm repo add kafka-ui https://provectus.github.io/kafka-ui
helm install kafka-ui kafka-ui/kafka-ui

To read more please follow to chart documentation

Guides

To be done

Connecting to a Secure Broker

UI for Apache Kafka supports TLS (SSL) and SASL connections for encryption and authentication. This can be configured by providing a combination of the following files (placed into the Kafka root directory):

To be continued

Configuration

Configuration File

Example of how to configure clusters in the application-local.yml configuration file:

kafka:
  clusters:
    -
      name: local
      bootstrapServers: localhost:29091
      zookeeper: localhost:2183
      schemaRegistry: http://localhost:8085
#     schemaNameTemplate: "%s-value"
      jmxPort: 9997
    -
  • name: cluster name
  • bootstrapServers: where to connect
  • zookeeper: zookeeper service address
  • schemaRegistry: schemaRegistry's address
  • schemaNameTemplate: how keys are saved to schemaRegistry
  • jmxPort: open jmxPosrts of a broker
  • readOnly: enable read only mode

Configure as many clusters as you need by adding their configs below separated with -.

Environment Variables

Alternatively, each variable of of the .yml file can be set with an environment variable. For example, if you want to use an environment variable to set the name parameter, you can write it like this: KAFKA_CLUSTERS_2_NAME

Name Description
SERVER_SERVLET_CONTEXT_PATH URI basePath
KAFKA_CLUSTERS_0_NAME Cluster name
KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS Address where to connect
KAFKA_CLUSTERS_0_ZOOKEEPER Zookeper service address
KAFKA_CLUSTERS_0_PROPERTIES_SECURITY_PROTOCOL Security protocol to connect to the brokers. For SSL connection use "SSL", for plaintext connection don't set this environment variable
KAFKA_CLUSTERS_0_SCHEMAREGISTRY SchemaRegistry's address
KAFKA_CLUSTERS_0_SCHEMANAMETEMPLATE How keys are saved to schemaRegistry
KAFKA_CLUSTERS_0_JMXPORT Open jmxPosrts of a broker
KAFKA_CLUSTERS_0_READONLY Enable read only mode. Default: false
LOGGING_LEVEL_ROOT Setting log level (all, debug, info, warn, error, fatal, off). Default: debug
LOGGING_LEVEL_COM_PROVECTUS Setting log level (all, debug, info, warn, error, fatal, off). Default: debug

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