Question

我的docker-compose文件如下所示：

version: '2'

services:
  explore:
    image: explore
    build:
      context: ./Explore
      dockerfile: VsDockerfile
    environment:
      - "ElasticUrl=http://localhost:9200"
      - "RabbitMq/Host=localhost"
      - "RabbitMq/Username=guest"
      - "RabbitMq/Password=guest"
    networks:
      - localnet

  elasticsearch:
    image: docker.elastic.co/elasticsearch/elasticsearch:5.4.3
    container_name: elasticsearch
    environment:
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
    ports:
      - 9200:9200
    volumes:
      - ./esdata:/usr/share/elasticsearch/data
    networks:
      - localnet

  rabbit:
    image: rabbitmq:3.6.7-management
    hostname: rabbit
    ports:
      - 15672:15672
      - 5672:5672
    networks:
      - localnet

networks:
  localnet:
    external:
      name: localnet

如果我在浏览器中输入http://localhost:15672，我会得到rabbitmq界面，但如果我尝试从我的探索项目中连接如下：

public SqlToRabbitProcessor(SqlToRabbitRepository sqlToRabbitRepository)
{
    _sqlToRabbitRepository = sqlToRabbitRepository;

    var factory = new ConnectionFactory
    {
        HostName = Environment.GetEnvironmentVariable("RabbitMq/Host"),
        UserName = Environment.GetEnvironmentVariable("RabbitMq/Username"),
        Password = Environment.GetEnvironmentVariable("RabbitMq/Password")
    };

    var rabbit = factory.CreateConnection();
    channel = rabbit.CreateModel();
}

然后它在行

中断

var rabbit = factory.CreateConnection();

错误说

ExtendedSocketException：Connection拒绝127.0.0.1:5672 System.Net.Sockets.Socket.EndConnect（IAsyncResult asyncResult）

ConnectFailureException：连接失败 RabbitMQ.Client.EndpointResolverExtensions.SelectOne（IEndpointResolver解析器，Func选择器）

BrokerUnreachableException：没有指定的端点可以访问 RabbitMQ.Client.ConnectionFactory.CreateConnection（IEndpointResolver endpointResolver，string clientProvidedName）

Answer 1

正如我在问题提出的评论中所说，这是因为Web应用程序部分中定义的“localhost”是容器localhost，而不是docker主机..

只需改变

- "ElasticUrl=http://localhost:9200"
- "RabbitMq/Host=localhost"

到

- "ElasticUrl=http://elasticsearch:9200"
- "RabbitMq/Host=rabbit"

Answer 2

我在docker-compose上遇到了同样的问题。

我用主机名解决了这个问题

  rabbit:
    hostname: rabbit
    command: sh -c "rabbitmq-plugins enable rabbitmq_management; rabbitmq-server"
    image: rabbitmq
    environment:
      RABBITMQ_DEFAULT_USER: admin
      RABBITMQ_DEFAULT_PASS: admin
    ports:
        - 5672:5672
        - 15672:15672

Answer 3

遵循有关custom runtimes的说明。

只是让那些偶然遇到这个问题的人受益。 --link功能现在被认为是旧功能，是docker不推荐使用的主要候选方法。最简单的方法是使用

depends_on：为此，建议先创建一个像这样的网络。

docker network create <network_name>

然后使用docker-compose up生成彼此绑定的服务。在下面的示例中，我将我的spring-boot应用程序绑定到rabbit-mq。您可以从post

克隆我的存储库

version: "3.1"
services:
  rabbitmq-container:
    image: rabbitmq:3.5.3-management
    hostname: rabbitmq-container
    ports:
      - 5673:5673
      - 5672:5672
      - 15672:15672
    networks:
      - resolute

  resolute-container:
    build: .
    ports:
      - 8080:8080
    environment:
      - spring_rabbitmq_host=rabbitmq-container
      - spring_rabbitmq_port=5672
      - spring_rabbitmq_username=guest
      - spring_rabbitmq_password=guest
      - resolute_rabbitmq_publishQueueName=resolute-run-request
      - resolute_rabbitmq_exchange=resolute
    depends_on:
      - rabbitmq-container
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    networks:
      - resolute

networks:
  resolute:
    external:
      name: resolute

了解如何创建名为resolute的网络并将应用程序绑定到同一网络。我还给了Rabbitmq容器一个hostname。这是因为docker现在在容器名称前加上了前缀，这使得按名称绑定服务变得很困难。

RabbitMq在docker中运行时拒绝连接

3 个答案: