Docker 使用 Kafka 的集群无法与客户端容器建立连接

Question

我从客户端应用程序收到以下错误消息：

Connection to node 1002 (/127.0.0.1:9092) could not be established. Broker may not be available.

节点 1002 是正确的代理 ID，这意味着它能够找到它，但我不明白为什么当客户端应用程序工作时无法建立连接本身运行在容器上。

Docker-撰写

version: '3'
services:
  zookeeper:
    image: wurstmeister/zookeeper
    ports:
      - "2181:2181"

  kafka:
    image: wurstmeister/kafka
    ports:
      - "9092:9092"
    environment:
      KAFKA_ADVERTISED_HOST_NAME: 127.0.0.1
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
      KAFKA_AUTO_CREATE_TOPICS_ENABLE: 'false'
    depends_on:
      - zookeeper

  app:
    image: someuser/someimage
    ports:
     - "8080:8080"
    environment:
       KAFKA_CONNECTION: kafka:9092
    depends_on:
      - kafka

application.yml

spring:
  kafka:
    consumer:
      group-id: tdp-loggers
      auto-offset-reset: earliest
    bootstrap-servers: ${KAFKA_CONNECTION}

tdp:
  topic-name: advice-topic
  messages-per-request: 10

Docker文件

FROM openjdk:17

WORKDIR /app

EXPOSE 8080

COPY .mvn/ .mvn
COPY mvnw pom.xml ./
RUN ./mvnw dependency:go-offline

COPY src ./src

CMD ["./mvnw", "spring-boot:run"]

Answer 1

@Turing85 发布了答案，我不得不更改

KAFKA_ADVERTISED_HOSTNAME

从静态 IP 地址 127.0.0.1 到 kafka 的变量。

Docker 使用 Kafka 的集群无法与客户端容器建立连接

Docker Cluster with Kafka can't establish a connection with a client container

java

spring

apache-kafka

docker

spring-boot