Windows-无法访问在群集集群中运行的Docker容器

如果这很有趣：操作系统：WIN10(cygwin),用Java编写的代码.

我以this为例.

I’d expect to reach the service in front of the container,which is running on port 80,using myvm1IP:80 (browser ir curl). Somehow this does not work. Or am I missunderstoonding the port mapping of the service?

*:8080->80/tcp

我有一个正在运行的由2个节点组成的docker swarm集群.
我能够ping通两个正在运行的VM

我已经降级了版本,因为版本为issues with more recent version numbers.有关使用docker inspect vmName的引擎的信息：

    "Engine": {
        "EngineVersion": "18.06.1-ce","Labels": {
            "provider": "hyperv"
        },

我执行了以下docker-compose.yml：

version: "3"

services:
  web:
    image: elps/articleservice:1.1.0.4
    deploy:
      replicas: 2
      restart_policy:
        condition: on-failure
    ports:
      - "8080:80"
    environment:
      - MYSQL_HOST=192.168.178.82
      - MYSQL_DB=article
      - MYSQL_USER=root
      - MYSQL_PASSWORD=abcdefg
    networks:
      - webnet    

networks:
  webnet:

两个副本均已成功启动,并且能够连接到本地正在运行的数据库(假设我查看了日志,并且一切正常.)容器已启动并正在运行.

Output of docker ps -a

CONTAINER ID        IMAGE                         COMMAND                  CREATED             STATUS                      PORTS               NAMES
979ed7ea88b7        elps/articleservice:1.1.0.4   "java -jar articlese…"   27 minutes ago      Up 27 minutes               8080/tcp            getstartedlab_web.1.j1j41so8pz6atxqnq9fqqquk7
7684c3667025        elps/articleservice:1.1.0.4   "java -jar articlese…"   27 minutes ago      Up 27 minutes               8080/tcp            getstartedlab_web.2.r4kadvztiwgpckkuannnhcsea

Output of docker service ls

ID                  NAME                MODE                REPLICAS            IMAGE                         PORTS
gvyi9moxtpvq        getstartedlab_web   replicated          2/2                 elps/articleservice:1.1.0.4   *:8080->80/tcp

Output of docker-machine ls

NAME    ACTIVE   DRIVER   STATE     URL                         SWARM   DOCKER        ERRORS
myvm1   *        hyperv   Running   tcp://192.168.178.88:2376           v18.06.1-ce
myvm2   -        hyperv   Running   tcp://192.168.178.89:2376           v18.06.1-ce

当我尝试执行curl myvmIP：80时,我收到了

Failed to connect to 192.168.178.88 port 80: Connection refused

作为回应.我希望收到404错误代码,因为/没有映射.我错了吗？

最佳答案

好的,所以我只是测试了交换所有端口的情况,因为我确定有什么问题.

>应用程序本身和容器在默认端口(8080)上运行
>服务器正在将端口8080上的传入流量重定向到容器端口80(显然没有运行)

在服务配置(docker-compose.yml)中切换端口后,它可以正常工作.

所以工作的docker-compose.yml看起来像这样：

version: "3"

services:
  web:
    image: elps/articleservice:1.1.0.4
    deploy:
      replicas: 2
      restart_policy:
        condition: on-failure
    ports:
      - "80:8080"
    environment:
      - MYSQL_HOST=192.168.178.82
      - MYSQL_DB=article
      - MYSQL_USER=root
      - MYSQL_PASSWORD=abcdefg
    networks:
      - webnet    

networks:
  webnet:

因此,传入流量将按以下方式重定向：

Incoming traffic -> 80:Service->8080:Container