---
version: '3.9'

#### NETWORKS
networks:
  docker-traefik_front_network:
    external: true
  back_network:
    driver: bridge
    attachable: true

#### SERVICES
services:

### zookeeper-kafka
  zookeeper-kafka:
    container_name: zookeeper
    hostname: zookeeper
    image: confluentinc/cp-zookeeper:latest
    ports:
      - '2181:2181'
    networks:
    - back_network
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_TICK_TIME: 2000
    healthcheck:
      # fake healthcheck just to have one to simplify status check
      test: ['CMD', 'date']
      interval: 10s
      timeout: 5s
      retries: 5

### kafka
### docs at: https://registry.hub.docker.com/r/wurstmeister/kafka
  kafka:
    container_name: kafka
    hostname: kafka
    image: wurstmeister/kafka:latest
    restart: always
    depends_on:
      - zookeeper-kafka
    ports:
      - '9092:9092'
    networks:
    - back_network
    volumes:
      # It's the only way to deal with Kafka non-static exposed ports to host
      # See: https://github.com/wurstmeister/kafka-docker/blob/master/start-kafka.sh#L65-L76
      - /var/run/docker.sock:/var/run/docker.sock
    environment:
      KAFKA_BROKER_ID: 1
      KAFKA_ZOOKEEPER_CONNECT: 'zookeeper-kafka:2181'
      PORT_COMMAND: 'docker port $$(hostname) 9092/tcp | cut -d: -f2'
      KAFKA_LISTENERS: 'LISTENER_INTERNAL://kafka:29092,LISTENER_HOST://:9092'
      KAFKA_ADVERTISED_LISTENERS: LISTENER_INTERNAL://kafka:29092,LISTENER_HOST://localhost:_{PORT_COMMAND}
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: LISTENER_INTERNAL:PLAINTEXT,LISTENER_HOST:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: LISTENER_INTERNAL
      KAFKA_AUTO_CREATE_TOPICS_ENABLE: 'true'
      KAFKA_CREATE_TOPICS: 'test:1:1'
    healthcheck:
      test:
        [
          'CMD',
          '/opt/kafka/bin/kafka-topics.sh',
          '--list',
          '--bootstrap-server',
          'kafka:29092',
        ]
      interval: 10s
      timeout: 5s
      retries: 5

### kafka-ui
  kafka-ui:
    container_name: kafka-ui
    hostname: kafka-ui
    image: provectuslabs/kafka-ui:latest
#    ports:
#      - "8080:8080"
    networks:
    - docker-traefik_front_network
    - back_network
    depends_on:
      - zookeeper-kafka
      - kafka
    environment:
      KAFKA_CLUSTERS_0_NAME: local
      KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS: kafka:29092
      KAFKA_CLUSTERS_0_ZOOKEEPER: zookeeper-kafka:2181
      KAFKA_CLUSTERS_0_JMXPORT: 9997
    labels:
      - "traefik.enable=true"
      - "traefik.docker.network=docker-traefik_front_network"
# HTTP
      - "traefik.http.routers.kafka-http.rule=Host(`kafka-ui.10.0.4.29.traefik.me`)"
      - "traefik.http.routers.kafka-http.entrypoints=http"
# HTTPS
      - "traefik.http.routers.kafka-https.rule=Host(`kafka-ui.10.0.4.29.traefik.me`)"
      - "traefik.http.routers.kafka-https.entrypoints=https"
      - "traefik.http.routers.kafka-https.service=kafka-service"
      - "traefik.http.routers.kafka-https.tls=true"
# Middleware
# Service
      - "traefik.http.services.kafka-service.loadbalancer.server.port=8080"