DOCKER_KAFKA

Docker file Kafka for testing

1. Software installed:

   • Docker Desktop
   • Offset Explorer (Kafka Tool: https://kafkatool.com/download.html)

2. Let's start the Kafka server by spinning up the containers using the docker-compose command (port 29092): $ docker-compose up -d Creating network "kafka_default" with the default driver Creating kafka_zookeeper_1 ... done Creating kafka_kafka_1 ... done

3. Now let's use the nc command to verify that both the servers are listening on the respective ports: $ nc -z localhost 22181 Connection to localhost port 22181 [tcp/] succeeded! $ nc -z localhost 29092 Connection to localhost port 29092 [tcp/] succeeded!

4. (!) Optional

   In /multi-cluster docker-compose for start multi node Kafka cluster. Although zookeeper-1 and zookeeper-2 are listening on port 2181, they're exposing it to the host via ports 22181 and 32181, respectively. The same logic applies for the kafka-1 and kafka-2 services, where they'll be listening on ports 29092 and 39092, respectively.

    $ docker-compose up -d
    Creating network "kafka_default" with the default driver
    Creating kafka_zookeeper-1_1 ... done
    Creating kafka_zookeeper-2_1 ... done
    Creating kafka_kafka-2_1     ... done
    Creating kafka_kafka-1_1     ... done