docker和kafka连接Topic失败处理措施

使用 docker 镜像部署一套单节点的 Zookeeper + Kafka，但是一直Java却连不上一些处理思路。

为了提高部署效率，这里提供一个简单可启动的docker-compose。

version: "3.3"
services:
    zookeeper:
        image: zookeeper:3.5.5
        restart: always
        container_name: zookeeper
        ports:
            - "2181:2181"
        expose:
            - "2181"
        environment:
            - ZOO_MY_ID=1
    kafka:
        image: wurstmeister/kafka:2.12-2.2.1
        restart: always
        container_name: kafka
        environment:
            - KAFKA_BROKER_ID=1
            - KAFKA_LISTENERS=PLAINTEXT://kafka:9090
            - KAFKA_ZOOKEEPER_CONNECT=zookeeper:2181
            - KAFKA_MESSAGE_MAX_BYTES=2000000
        ports:
            - "9090:9090"
        depends_on:
            - zookeeper

启动命令：docker-compose -f kafka.yml up -d

查看一下注册信息

docker exec -it zookeeper bash bin/zkCli.sh

• 创建个Topic
  宿主机本身对 kafka 作映射
  

  docker run -it --rm --network host wurstmeister/kafka:2.12-2.2.1
  bash /opt/kafka/bin/kafka-topics.sh
  --bootstrap-server kafka:9090
  --create --topic logsTopic --partitions 1 --replication-factor 1