Docker多个相同的端口问题 [英] Docker multiple same port issue

问题描述

我目前正在解决方案中两个相互关联的ASP.NET Core WebAPI服务（Service1和Service2）。两者都具有docker文件并公开端口80。

I am currently working on two inter related ASP.NET Core WebAPI services (Service1 & Service2) in a solution. Both are having docker files and exposing port 80.

Service1是一项独立的服务，需要从Service2进行调用。我已经给了docker-compose.yml和docker-compose.override.yml。

Service1 is an independent service and required to be called from Service2. I have given both docker-compose.yml and docker-compose.override.yml.

docker-compose.yml

version: '3.4'

    services:
      services1:
        image: ${DOCKER_REGISTRY-}services1
        network_mode: bridge
        build:
          context: .
          dockerfile: Services1/Dockerfile
        ports:
         - "501:80"

      services2:
        image: ${DOCKER_REGISTRY-}services2
        network_mode: bridge
        build:
          context: .
          Services2/Dockerfile
        ports:
         - "502:80"

docker-compose.override.yml

version: '3.4'

services:
  services1:
    build:
      context: .
      dockerfile: Services1/Dockerfile
    environment:
      - ASPNETCORE_ENVIRONMENT=Development
    ports:
      - "1001:80"

  services2:
    build:
      context: .
      dockerfile: Services2/Dockerfile
    environment:
      - ASPNETCORE_ENVIRONMENT=Development
      - SERVICE1=http://localhost:1001
      ports:
      - "1002:80"    

当我呼叫 http：// localhost：1001 rel = nofollow noreferrer> http：// localhost：1002 ，其中网络模式：网桥，我收到以下异常。

When i call http://localhost:1001 from http://localhost:1002 with network_mode: bridge, I am getting the below exception.

{System.Net.Http.HttpRequestException：无法分配请求的地址
---> System.Net.Sockets.SocketException：无法分配请求的地址

{System.Net.Http.HttpRequestException: Cannot assign requested address ---> System.Net.Sockets.SocketException: Cannot assign requested address

当我更改network_mode时主机（ network_mode：host ），我得到以下异常。

when i change the network_mode to host ( network_mode:host ), i am getting the below exception.

System.IO.IOException： '无法绑定到地址 http：// [::]：80 ：
地址已被使用。'

System.IO.IOException: 'Failed to bind to address http://[::]:80: address already in use.'

所以请让我知道如何解决此问题。

So please let me know how to resolve the issue.

推荐答案

您应坚持使用默认桥接模式（通过删除 network_mode：bridge ）并更改

You should stick with the default bridge mode (by removing network_mode: bridge) and change

  - SERVICE1=http://localhost:1001

至

  - SERVICE1=http://services1:80 # services1 will be resolved by docker

由于service1和service2在单独的容器上，因此容器上没有打开的端口1001服务2。

Because service1 and service2 are on separate containers, so there is no opened port 1001 on the container of service2.

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