docker - RabbitMq-Docker-compose-如何修复 'Connection refused 127.0.0.1:5672'异常

Question

我已经在Stack Overflow上尝试了几种可能的解决方案，但是似乎没有任何效果。

我正在使用RabbitMQ开发微服务。该解决方案包含多个项目，并且可以正常运行，但是一旦我使用docker-compose选项构建项目，Visual Studio就会引发以下异常:

RabbitMQ.Client.Exceptions.BrokerUnreachableException ExtendedSocketException: Connection refused 127.0.0.1:5672

在我的解决方案中，我有三个项目通过RabbitMQ相互通信。

以下是我的YAML文件的代码。

我的docker-compose.yaml:

version: '3.4'

services:    
  rabbitmq:
    hostname: webnet
    image: rabbitmq:3.7.2-management
    ports:
      - "15672:15672"
      - "5672:5672"    
    networks:
      - webnet

  sql-server-db:
    container_name: sql-server-db
    image: microsoft/mssql-server-linux:2017-latest
    ports:
      - "1433:1433"
    environment:
      SA_PASSWORD: "customerdbalten@123"
      ACCEPT_EULA: "Y"
    networks:
      - webnet

  myproject.simulation.api:
    image: ${DOCKER_REGISTRY-}myprojectsimulationapi
    build:
      context: .
      dockerfile: myproject.Simulation.Api/Dockerfile
    links:
      - rabbitmq
    ports:
      - '5000'
    networks:
      - webnet

  myproject.updateservice.api:
    image: ${DOCKER_REGISTRY-}myprojectupdateserviceapi
    build:
      context: .
      dockerfile: myproject.updateservice.Api/Dockerfile
    links:
      - rabbitmq
      - sql-server-db
    ports:
      - '5050'
    networks:
      - webnet

  myproject.web:
    image: ${DOCKER_REGISTRY-}myprojectweb
    build:
      context: .
      dockerfile: MyProject.Web/Dockerfile
    links:
      - rabbitmq
    ports:
      - '5001'
    networks:
      - webnet

networks:
  webnet:
    driver: bridge

我的Docker文件:

我的Dockerfile如下所示:

FROM microsoft/dotnet:2.2-aspnetcore-runtime AS base
WORKDIR /app
EXPOSE 80
EXPOSE 443

FROM microsoft/dotnet:2.2-sdk AS build
WORKDIR /src
COPY 
MyProject.UpdateService.Api/MyProject.UpdateService.Api.csproj MyProject.UpdateService.Api/
COPY MyProject.Common/MyProject.Common.csproj MyProject.Common/
RUN dotnet restore MyProject.UpdateService.Api/MyProject.UpdateService.Api.csproj
COPY . .
WORKDIR /src/MyProject.UpdateService.Api
RUN dotnet build MyProject.UpdateService.Api.csproj -c Release -o /app

FROM build AS publish
RUN dotnet publish MyProject.UpdateService.Api.csproj -c Release -o /app

FROM base AS final
WORKDIR /app
COPY --from=publish /app .
ENTRYPOINT ["dotnet", "MyProject.UpdateService.Api.dll"]

我还创建了另一个简单的解决方案，仅使用两个项目-发送者和接收者-使用RabbitMQ。此解决方案在 docker-compose编码时抛出相同的异常，否则，它将运行。 YAML文件只包含自动生成的代码。

Answer 1

从讨论中，我们发现RabbitMQ容器未运行，因为主机上已经在运行RabbitMQ服务。

您有两种选择，停止主机RabbitMQ服务，然后尝试与RabbitMQ容器连接。

Hostname: rabbitmq:5672

或者，如果您想连接Host RabbitMQ服务，则可以使用

Hostname: host.docker.internal
#or
Hostname: HOST_IP

我想从主机上的容器连接到服务

The host has a changing IP address (or none if you have no network access). From 18.03 onwards our recommendation is to connect to the special DNS name `host.docker.internal, which resolves to the internal IP address used by the host. This is for development purpose and will not work in a production environment outside of Docker Desktop for Windows.

网关也可以通过 gateway.docker.internal.到达

docker-for-windows-networking