version: '3'
services:
  kafka1:
    image: confluentinc/cp-kafka
    container_name: kafka1
    hostname: kafka1
    ports:
      - "9092:9092"
    environment:
      KAFKA_NODE_ID: 1
      KAFKA_CONTROLLER_LISTENER_NAMES: 'CONTROLLER'
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: 'CONTROLLER:PLAINTEXT,INTERNAL:PLAINTEXT,EXTERNAL:PLAINTEXT'
      KAFKA_LISTENERS: 'INTERNAL://kafka1:29092,CONTROLLER://kafka1:29093,EXTERNAL://0.0.0.0:9092'
      KAFKA_ADVERTISED_LISTENERS: 'INTERNAL://kafka1:29092,EXTERNAL://localhost:9092'
      KAFKA_INTER_BROKER_LISTENER_NAME: 'INTERNAL'
      KAFKA_CONTROLLER_QUORUM_VOTERS: '1@kafka1:29093,2@kafka2:29093,3@kafka3:29093'
      KAFKA_PROCESS_ROLES: 'broker,controller'
      KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: 0
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 3
      KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 3
      CLUSTER_ID: 'ciWo7IWazngRchmPES6q5A=='
      KAFKA_LOG_DIRS: '/tmp/kraft-combined-logs'

  kafka2:
    image: confluentinc/cp-kafka
    container_name: kafka2
    hostname: kafka2
    ports:
      - "9093:9093"
    environment:
      KAFKA_NODE_ID: 2
      KAFKA_CONTROLLER_LISTENER_NAMES: 'CONTROLLER'
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: 'CONTROLLER:PLAINTEXT,INTERNAL:PLAINTEXT,EXTERNAL:PLAINTEXT'
      KAFKA_LISTENERS: 'INTERNAL://kafka2:29092,CONTROLLER://kafka2:29093,EXTERNAL://0.0.0.0:9093'
      KAFKA_ADVERTISED_LISTENERS: 'INTERNAL://kafka2:29092,EXTERNAL://localhost:9093'
      KAFKA_INTER_BROKER_LISTENER_NAME: 'INTERNAL'
      KAFKA_CONTROLLER_QUORUM_VOTERS: '1@kafka1:29093,2@kafka2:29093,3@kafka3:29093'
      KAFKA_PROCESS_ROLES: 'broker,controller'
      KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: 0
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 3
      KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 3
      CLUSTER_ID: 'ciWo7IWazngRchmPES6q5A=='
      KAFKA_LOG_DIRS: '/tmp/kraft-combined-logs'

  kafka3:
    image: confluentinc/cp-kafka
    container_name: kafka3
    hostname: kafka3
    ports:
      - "9094:9094"
    environment:
      KAFKA_NODE_ID: 3
      KAFKA_CONTROLLER_LISTENER_NAMES: 'CONTROLLER'
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: 'CONTROLLER:PLAINTEXT,INTERNAL:PLAINTEXT,EXTERNAL:PLAINTEXT'
      KAFKA_LISTENERS: 'INTERNAL://kafka3:29092,CONTROLLER://kafka3:29093,EXTERNAL://0.0.0.0:9094'
      KAFKA_ADVERTISED_LISTENERS: 'INTERNAL://kafka3:29092,EXTERNAL://localhost:9094'
      KAFKA_INTER_BROKER_LISTENER_NAME: 'INTERNAL'
      KAFKA_CONTROLLER_QUORUM_VOTERS: '1@kafka1:29093,2@kafka2:29093,3@kafka3:29093'
      KAFKA_PROCESS_ROLES: 'broker,controller'
      KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: 0
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 3
      KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 3
      CLUSTER_ID: 'ciWo7IWazngRchmPES6q5A=='
      KAFKA_LOG_DIRS: '/tmp/kraft-combined-logs'

  schema-registry:
    image: confluentinc/cp-schema-registry
    container_name: schema-registry
    hostname: schema-registry
    ports:
      - "8081:8081"
    environment:
      SCHEMA_REGISTRY_HOST_NAME: schema-registry
      SCHEMA_REGISTRY_KAFKASTORE_BOOTSTRAP_SERVERS: 'kafka1:29092,kafka2:29092,kafka3:29092'
      SCHEMA_REGISTRY_LISTENERS: 'http://0.0.0.0:8081'
    depends_on:
      - kafka1
      - kafka2
      - kafka3

networks:
  my-network:
    external: true