docker-compose.yml

---
version: '2'

services:
  #---------------------------------------------------------------------------#
  # Zookeeper Cluster                                                         #
  #---------------------------------------------------------------------------#
  zookeeper-1:
    image: confluentinc/cp-zookeeper:6.1.1
    environment:
      ZOOKEEPER_SERVER_ID: 1
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_TICK_TIME: 2000
      ZOOKEEPER_INIT_LIMIT: 5
      ZOOKEEPER_SYNC_LIMIT: 2
      ZOOKEEPER_SERVERS: zookeeper-1:2888:3888

  #---------------------------------------------------------------------------#
  # Kafka Cluster                                                             #
  #---------------------------------------------------------------------------#
  kafka-1:
    image: confluentinc/cp-kafka:6.1.1
    depends_on:
      - zookeeper-1
    environment:
      KAFKA_BROKER_ID: 1
      KAFKA_ZOOKEEPER_CONNECT: zookeeper-1:2181
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka-1:9092
      KAFKA_GROUP_MIN_SESSION_TIMEOUT_MS: 5000
      KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: 0
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 1
      KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 1


  #---------------------------------------------------------------------------#
  # Schema Registry                                                           #
  #---------------------------------------------------------------------------#
  schema-registry-1:
    image: confluentinc/cp-schema-registry:6.1.1
    depends_on:
      - zookeeper-1
      - kafka-1
    restart: always
    environment:
      SCHEMA_REGISTRY_KAFKASTORE_BOOTSTRAP_SERVERS: PLAINTEXT://kafka-1:9092
      SCHEMA_REGISTRY_HOST_NAME: schema-registry-1
      SCHEMA_REGISTRY_LISTENERS: http://0.0.0.0:8081
      KAFKA_GROUP_MIN_SESSION_TIMEOUT_MS: 5000

  #---------------------------------------------------------------------------#
  # Integration test                                                          #
  #---------------------------------------------------------------------------#
  tools:
    build: .
    # Right now, only direct connections to kafka are tested
    depends_on:
      - zookeeper-1
      - kafka-1
    volumes:
      - .:/schema/conf