docker-compose.yml

---
services:

  broker:
    image: apache/kafka:${KAFKA_VERSION}
    hostname: broker
    container_name: broker
    ports:
      - "9092:9092"
    environment:
      KAFKA_NODE_ID: 1
      KAFKA_PROCESS_ROLES: 'broker,controller'
      KAFKA_CONTROLLER_QUORUM_VOTERS: '1@broker:29093'
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: 'PLAINTEXT:PLAINTEXT,CONTROLLER:PLAINTEXT'
      KAFKA_ADVERTISED_LISTENERS: 'PLAINTEXT://broker:9092'
      KAFKA_LISTENERS: 'PLAINTEXT://broker:9092,CONTROLLER://broker:29093'
      KAFKA_INTER_BROKER_LISTENER_NAME: 'PLAINTEXT'
      KAFKA_CONTROLLER_LISTENER_NAMES: 'CONTROLLER'
      KAFKA_LOG_DIRS: '/tmp/kraft-combined-logs'
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: 0
      KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 1
      KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 1
      KAFKA_TOOLS_LOG4J_LOGLEVEL: ERROR
      CLUSTER_ID: 'QTnB2tAgTWa1ec5wYon2jg'

  kcat:
    image: confluentinc/cp-kcat:${KCAT_VERSION}
    hostname: kcat
    container_name: kcat
    entrypoint: /bin/bash
    tty: true