如何使 Network_Mode : "host" 在 docker-compose.yml 文件中工作

Question

我正在尝试执行“docker-compose up”命令。请在下面找到我的 docker-compose 文件。我试过 network_mode: "host" 但它不起作用。我在 Linux OS。如果我犯了任何错误，请您告诉我。

version: '3.6'
services:
   mongo:
      image: "mongo:latest"
      container_name: ohif-mongo
       ports:
         - "27017:27017"

   viewer:
      image: ohif/viewer:latest
      container_name: ohif-viewer
      ports:
        - "3030:80"
      network_mode: "host"   # please make note of the alignment
      links:
         - mongo
      environment:
         - MONGO_URL=mongodb://mongo:27017/ohif
      extra_hosts:
         - "pacsIP:172.xx.xxx.xxx"
      volumes:
         - ./dockersupport-app.json:/app/app.json

执行后，出现以下错误

ERROR: for 8f4c3de7e3a3_ohif-viewer  Cannot create container for service viewer: conflicting options: host type networking can't be used with links. This would result in undefined behavior
 ERROR: for viewer  Cannot create container for service viewer: conflicting options: host type networking can't be used with links. This would result in undefined behavior

我不知道为什么错误信息会显示两次。不确定这是否符合预期

其次，当我更改 network_mode 的对齐方式时："host"（1/2 个空格）

  ports:
        - "3030:80"
        network_mode: "host"   # please see the change in alignment now
      links:
         - mongo

我收到以下错误消息

ERROR: yaml.parser.ParserError: while parsing a block mapping
 in "./docker-compose.yml", line 10, column 5
expected <block end>, but found '<block mapping start>'
 in "./docker-compose.yml", line 14, column 6

如何以network=host模式启动容器？

Answer 1

来自docs：

network_mode: "host" cannot be mixed with links.

And about links

Warning: The --link flag is a legacy feature of Docker. It may eventually be removed. Unless you absolutely need to continue using it, we recommend that you use user-defined networks to facilitate communication between two containers instead of using --link. One feature that user-defined networks do not support that you can do with --link is sharing environmental variables between containers. However, you can use other mechanisms such as volumes to share environment variables between containers in a more controlled way.

只需删除链接。不再需要它们。

Answer 2

network_mode: host用于与主机共享同一网络space。例如，您可能想要从容器访问 Linux PC 上运行的应用程序。如果你想 link 服务在一起，你可以使用 links 或 depends_on，如果服务在不同的主机上，只需创建一个覆盖网络

如何使 Network_Mode : "host" 在 docker-compose.yml 文件中工作

How to make Network_Mode : "host" work in docker-compose.yml file

docker

dockerfile

docker-compose

docker-machine