version: '3.5'
services:
  zookeeper:
    image: confluentinc/cp-zookeeper:7.3.2
    hostname: zookeeper
    container_name: zookeeper
    restart: always
    ports:
      - "9999:9999"
    volumes:
      - ./zookeeper.sasl.jaas.config:/etc/kafka/zookeeper_server_jaas.conf
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_TICK_TIME: 2000
      KAFKA_JMX_HOSTNAME: localhost
      KAFKA_OPTS: -Djava.security.auth.login.config=/etc/kafka/zookeeper_server_jaas.conf
        -Dzookeeper.authProvider.1=org.apache.zookeeper.server.auth.SASLAuthenticationProvider
        -Dzookeeper.allowSaslFailedClients=false
        -Dzookeeper.requireClientAuthScheme=sasl

  broker:
    image: confluentinc/cp-server:7.3.2
    hostname: broker
    container_name: broker
    restart: always
    ports:
      - "9092:9092"
    volumes:
      - ./kafka.jaas.conf:/etc/kafka/kafka_server_jaas.conf
      - ./config.properties:/home/appuser/config.properties
    depends_on:
      - zookeeper
    environment:
      KAFKA_ZOOKEEPER_CONNECT: 'zookeeper:2181'
      KAFKA_LISTENERS: SASL_PLAINTEXT://:9092
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: SASL_PLAINTEXT:SASL_PLAINTEXT
      KAFKA_ADVERTISED_LISTENERS: SASL_PLAINTEXT://broker:9092
      KAFKA_SASL_ENABLED_MECHANISMS: SCRAM-SHA-512
      KAFKA_SASL_MECHANISM_INTER_BROKER_PROTOCOL: SCRAM-SHA-512
      KAFKA_INTER_BROKER_LISTENER_NAME: SASL_PLAINTEXT
      CONFLUENT_METRICS_REPORTER_TOPIC_REPLICAS: 1
      CONFLUENT_METRICS_ENABLE: 'false'
      KAFKA_CONFLUENT_LICENSE_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_CONFLUENT_BALANCER_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 1
      KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 1
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_OPTS: "-Djava.security.auth.login.config=/etc/kafka/kafka_server_jaas.conf"