kafka-ui is a GUI for monitoring Apache Kafka. From their description:

Kafka 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.

You can connect and monitor your Upstash Kafka cluster using kafka-ui.

To be able to use kafka-ui, first you should create a yaml configuration file:

kafka:
  clusters:
    - name: my-cluster
      bootstrapServers: "tops-stingray-7863-eu1-kafka.upstash.io:9092"
      properties:
        sasl.mechanism: SCRAM-SHA-512
        security.protocol: SASL_SSL
        sasl.jaas.config: org.apache.kafka.common.security.scram.ScramLoginModule required username="ZmlycG9iZXJtYW4ZHtSXVwmyJQ" password="J6ocnQfe25vUsI8AX-XxA==";
      schemaRegistry: UPSTASH_KAFKA_REST_URL/schema-registry
      schemaRegistryAuth:
          username: UPSTASH_KAFKA_REST_USERNAME
          password: UPSTASH_KAFKA_REST_PASSWORD

You should replace bootstrap.servers and sasl.jaas.config attributes with your cluster endpoint and credentials.

You can find the endpoint, username and password from the cluster page at Upstash Console. Scroll down to the REST API section to find schema-registry related configs:

  • UPSTASH_KAFKA_REST_URL
  • UPSTASH_KAFKA_REST_USERNAME
  • UPSTASH_KAFKA_REST_PASSWORD

You can start kafka-ui application directly using jar file. First download the latest release from releases page. Then launch the application using following command in the same directory with application.yml file:

java -jar kafka-ui-api-X.Y.Z.jar

Alternatively you can start using Docker:

docker run -p 8080:8080 -v ~/kafka-ui/application.yml:/application.yml provectuslabs/kafka-ui:latest

After launching the kafka-ui app, just go to http://localhost:8080 to access UI.

For more information see kafka-ui documentation.

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