version: '3.8'

services:
  zookeeper:
    image: confluentinc/cp-zookeeper:latest
    container_name: zookeeper
    restart: unless-stopped
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_TICK_TIME: 2000
    networks:
      - kafka_network

  kafka:
    image: confluentinc/cp-kafka:latest
    container_name: kafka
    restart: unless-stopped
    depends_on:
      - zookeeper
    networks:
      - kafka_network
      - proxy
    environment:
      KAFKA_BROKER_ID: 1
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
      KAFKA_LISTENERS: PLAINTEXT://server.luke-else.co.uk:9092
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://server.luke-else.co.uk:9092
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
    labels:
      - "traefik.enable=true"
      - "traefik.tcp.routers.kafka.rule=HostSNI(`*`)"
      - "traefik.tcp.routers.kafka.entrypoints=kafka"
      - "traefik.tcp.routers.kafka.service=kafka"
      - "traefik.tcp.services.kafka.loadbalancer.server.port=9092"

networks:
  kafka_network:
    driver: bridge
  proxy:
    external: true