# Copyright IBM Corp. All Rights Reserved.
#
# SPDX-License-Identifier: Apache-2.0
#


# NOTE: This is not the way a Kafka cluster would normally be deployed in production, as it is not secure
# and is not fault tolerant. This example is a toy deployment that is only meant to exercise the Kafka code path
# of the ordering service.

version: '2'

networks:
  byfn:

services:
  zookeeper.example.com:
    container_name: zookeeper.example.com
    image: hyperledger/fabric-zookeeper:$IMAGE_TAG
    environment:
      ZOOKEEPER_CLIENT_PORT: 32181
      ZOOKEEPER_TICK_TIME: 2000
    networks:
    - byfn

  kafka.example.com:
    container_name: kafka.example.com
    image: hyperledger/fabric-kafka:$IMAGE_TAG
    depends_on:
    - zookeeper.example.com
    environment:
      - KAFKA_BROKER_ID=1
      - KAFKA_ZOOKEEPER_CONNECT=zookeeper.example.com:2181
      - KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://kafka.example.com:9092
      - KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR=1
      - KAFKA_MESSAGE_MAX_BYTES=1048576 # 1 * 1024 * 1024 B
      - KAFKA_REPLICA_FETCH_MAX_BYTES=1048576 # 1 * 1024 * 1024 B
      - KAFKA_UNCLEAN_LEADER_ELECTION_ENABLE=false
      - KAFKA_LOG_RETENTION_MS=-1
      - KAFKA_MIN_INSYNC_REPLICAS=1
      - KAFKA_DEFAULT_REPLICATION_FACTOR=1
    networks:
    - byfn