---
version: '3.5'
networks:
  default:
    name: kafka-net

services:
  zookeeper:
    image: confluentinc/cp-zookeeper:4.1.1
    hostname: zookeeper
    ports: 
    - "32181:32181"
    environment:
      ZOOKEEPER_CLIENT_PORT: 32181
      ZOOKEEPER_TICK_TIME: 2000
      ZOOKEEPER_SYNC_LIMIT: 2

  kafka:
    image: confluentinc/cp-kafka:4.1.1
    hostname: kafka
    ports: 
    - "29092:29092"
    depends_on:
    - zookeeper
    environment:
      KAFKA_BROKER_ID: 1
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:32181
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka:29092
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1

  schema-registry:
    image: confluentinc/cp-schema-registry:4.1.1
    hostname: schema-registry
    ports:
    - "38081:38081"
    depends_on:
    - kafka
    environment:
      SCHEMA_REGISTRY_KAFKASTORE_CONNECTION_URL: zookeeper:32181
      SCHEMA_REGISTRY_HOST_NAME: schema-registry
      SCHEMA_REGISTRY_LISTENERS: http://schema-registry:38081
      SCHEMA_REGISTRY_DEBUG: "true"

  kafka-rest:
    image: confluentinc/cp-kafka-rest:4.1.1
    hostname: kafka-rest
    ports:
    - "38082:38082"
    depends_on:
      - schema-registry
    environment:
      KAFKA_REST_ZOOKEEPER_CONNECT: zookeeper:32181
      KAFKA_REST_SCHEMA_REGISTRY_URL: schema-registry:38081
      KAFKA_REST_HOST_NAME: kafka-rest
      KAFKA_REST_LISTENERS: http://kafka-rest:38082