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docker - Quarkus Kafka Docker 网络属性

问题描述

我们的问题是内部属性 kafka.bootstrap.servers 不会被 kafka:9092 覆盖。我们的容器仍然尝试访问 localhost:9092。

我们在 docker-compose.yml 文件中为每个微服务的环境设置为： environment: - kafka.bootstrap.servers=kafka:9092 并且每个 MS 的属性也相同

有没有办法覆盖这个属性？

编辑：我们的 docker-compose.yml 文件的重要部分：

services:  
zookeeper:
    image: strimzi/kafka:0.19.0-kafka-2.5.0
    command:
      ["sh", "-c", "bin/zookeeper-server-start.sh config/zookeeper.properties"]
    ports:
      - "2181:2181"
    environment:
      LOG_DIR: /tmp/logs

  kafka:
    image: strimzi/kafka:0.19.0-kafka-2.5.0
    command:
      [
        "sh",
        "-c",
        "bin/kafka-server-start.sh config/server.properties --override listeners=$${KAFKA_LISTENERS} --override advertised.listeners=$${KAFKA_ADVERTISED_LISTENERS} --override zookeeper.connect=$${KAFKA_ZOOKEEPER_CONNECT}",
      ]
    depends_on:
      - zookeeper
    ports:
      - "9092:9092"
    environment:
      LOG_DIR: "/tmp/logs"
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://localhost:9092
      KAFKA_LISTENERS: PLAINTEXT://0.0.0.0:9092
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
  authentication-service:
    build:
      context: implementation/authentication
      dockerfile: src/main/docker/Dockerfile.jvm
    environment:
      - quarkus.mongodb.connection-string=mongodb://mongodb:27017
      - KAFKA_BOOTSTRAP_SERVERS=kafka:9092
    container_name: authentication-service-ase
    depends_on:
      - mongodb
      - kafka

我们不断遇到的错误是：

cart-service-ase              |
cart-service-ase              | {
cart-service-ase              |     "timestamp": "2021-06-02 12:19:48",
cart-service-ase              |     "sequence": 378,
cart-service-ase              |     "loggerClassName": "org.apache.kafka.common.utils.LogContext$LocationAwareKafkaLogger",
cart-service-ase              |     "loggerName": "org.apache.kafka.clients.NetworkClient",
cart-service-ase              |     "level": "WARN",
cart-service-ase              |     "message": "[Consumer clientId=kafka-consumer-checkout-out, groupId=cart] Connection to node 0 (localhost/127.0.0.1:9092) could not be established. Broker may not be available.",
cart-service-ase              |     "threadName": "vert.x-kafka-consumer-thread-1",
cart-service-ase              |     "threadId": 38,
cart-service-ase              |     "mdc": {
cart-service-ase              |     },
cart-service-ase              |     "ndc": "",
cart-service-ase              |     "hostName": "34e4de1e7647",
cart-service-ase              |     "processName": "quarkus-run.jar",
cart-service-ase              |     "processId": 1
cart-service-ase              | }

标签： dockerapache-kafkaquarkus

解决方案

您需要KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka:9092，因为您不能将 localhost 通告给同一网络中的其他容器。正如错误所说，消费者容器正在尝试与自身连接，而不是 Kafka 容器。

但是，您需要验证命令中的覆盖标志是否正确设置了属性

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