kafka_client 0.5.2

A pure Rust Kafka client library with SASL authentication support
Documentation
# 3-broker KRaft Kafka cluster with dual listeners.
#
# Architecture:
#   INTERNAL listener   (9092) — broker-to-broker communication via container name
#   EXTERNAL listener   (9093) — host/client access via localhost + port mapping
#   CONTROLLER listener (9094) — KRaft controller quorum
#
# Usage:
#   cd tests
#   podman-compose up -d
#   KAFKA_BOOTSTRAP=127.0.0.1:29093,127.0.0.1:29095,127.0.0.1:29097 \
#     cargo run --example stress_test
#   podman-compose down -v

services:
  kafka-1:
    image: ${KAFKA_IMAGE:-apache/kafka:4.3.0}
    container_name: kafka-1
    hostname: kafka-1
    ports:
      - "29093:9093"   # EXTERNAL — host → Kafka
      - "29094:9094"   # CONTROLLER — for debugging
    networks:
      - kafka-cluster
    environment:
      KAFKA_NODE_ID: 1
      KAFKA_PROCESS_ROLES: broker,controller
      KAFKA_LISTENERS: INTERNAL://0.0.0.0:9092,EXTERNAL://0.0.0.0:9093,CONTROLLER://0.0.0.0:9094
      KAFKA_ADVERTISED_LISTENERS: EXTERNAL://127.0.0.1:29093,INTERNAL://kafka-1:9092
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: INTERNAL:PLAINTEXT,EXTERNAL:PLAINTEXT,CONTROLLER:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: INTERNAL
      KAFKA_CONTROLLER_LISTENER_NAMES: CONTROLLER
      KAFKA_CONTROLLER_QUORUM_VOTERS: 1@kafka-1:9094,2@kafka-2:9094,3@kafka-3:9094
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 3
      KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 3
      KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 2
      KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: 0
      KAFKA_GROUP_COORDINATOR_REBALANCE_PROTOCOLS: classic
      KAFKA_AUTO_CREATE_TOPICS_ENABLE: "false"
      CLUSTER_ID: MkU3OEVBNTcwNTJENDM2Qk
    healthcheck:
      test: ["CMD", "kafka-broker-api-versions.sh", "--bootstrap-server", "127.0.0.1:9092"]
      interval: 5s
      timeout: 10s
      retries: 30
      start_period: 30s

  kafka-2:
    image: ${KAFKA_IMAGE:-apache/kafka:4.3.0}
    container_name: kafka-2
    hostname: kafka-2
    ports:
      - "29095:9093"   # EXTERNAL
      - "29096:9094"   # CONTROLLER
    networks:
      - kafka-cluster
    environment:
      KAFKA_NODE_ID: 2
      KAFKA_PROCESS_ROLES: broker,controller
      KAFKA_LISTENERS: INTERNAL://0.0.0.0:9092,EXTERNAL://0.0.0.0:9093,CONTROLLER://0.0.0.0:9094
      KAFKA_ADVERTISED_LISTENERS: EXTERNAL://127.0.0.1:29095,INTERNAL://kafka-2:9092
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: INTERNAL:PLAINTEXT,EXTERNAL:PLAINTEXT,CONTROLLER:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: INTERNAL
      KAFKA_CONTROLLER_LISTENER_NAMES: CONTROLLER
      KAFKA_CONTROLLER_QUORUM_VOTERS: 1@kafka-1:9094,2@kafka-2:9094,3@kafka-3:9094
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 3
      KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 3
      KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 2
      KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: 0
      KAFKA_GROUP_COORDINATOR_REBALANCE_PROTOCOLS: classic
      KAFKA_AUTO_CREATE_TOPICS_ENABLE: "false"
      CLUSTER_ID: MkU3OEVBNTcwNTJENDM2Qk
    depends_on:
      kafka-1:
        condition: service_started
    healthcheck:
      test: ["CMD", "kafka-broker-api-versions.sh", "--bootstrap-server", "127.0.0.1:9092"]
      interval: 5s
      timeout: 10s
      retries: 30
      start_period: 30s

  kafka-3:
    image: ${KAFKA_IMAGE:-apache/kafka:4.3.0}
    container_name: kafka-3
    hostname: kafka-3
    ports:
      - "29097:9093"   # EXTERNAL
      - "29098:9094"   # CONTROLLER
    networks:
      - kafka-cluster
    environment:
      KAFKA_NODE_ID: 3
      KAFKA_PROCESS_ROLES: broker,controller
      KAFKA_LISTENERS: INTERNAL://0.0.0.0:9092,EXTERNAL://0.0.0.0:9093,CONTROLLER://0.0.0.0:9094
      KAFKA_ADVERTISED_LISTENERS: EXTERNAL://127.0.0.1:29097,INTERNAL://kafka-3:9092
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: INTERNAL:PLAINTEXT,EXTERNAL:PLAINTEXT,CONTROLLER:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: INTERNAL
      KAFKA_CONTROLLER_LISTENER_NAMES: CONTROLLER
      KAFKA_CONTROLLER_QUORUM_VOTERS: 1@kafka-1:9094,2@kafka-2:9094,3@kafka-3:9094
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 3
      KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 3
      KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 2
      KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: 0
      KAFKA_GROUP_COORDINATOR_REBALANCE_PROTOCOLS: classic
      KAFKA_AUTO_CREATE_TOPICS_ENABLE: "false"
      CLUSTER_ID: MkU3OEVBNTcwNTJENDM2Qk
    depends_on:
      kafka-2:
        condition: service_started
    healthcheck:
      test: ["CMD", "kafka-broker-api-versions.sh", "--bootstrap-server", "127.0.0.1:9092"]
      interval: 5s
      timeout: 10s
      retries: 30
      start_period: 30s

networks:
  kafka-cluster:
    driver: bridge