Cannot access container by "network_mode: host" - docker

Question

I cannnot use network_mode: host in docker in windows 10. I try difference images, it cannot too.
I post my docker-compose.yaml below.
docker-compose.yaml
homeassistant2:
container_name: hass2
image: homeassistant/home-assistant:0.112.2
network_mode: host
But when set the port mapping,everthing is fine
ports:
- '8123:8123'
# network_mode: host
My environmet is windows 10
I get some information from command docker inspect
I post some of it about network settings below.
"NetworkSettings": {
"Bridge": "",
"SandboxID": "f084a1e7e4966f0bff678e4120c1bcbc7afdd1c55d5164b1dc4a606470c43bcc",
"HairpinMode": false,
"LinkLocalIPv6Address": "",
"LinkLocalIPv6PrefixLen": 0,
"Ports": {},
"SandboxKey": "/var/run/docker/netns/default",
"SecondaryIPAddresses": null,
"SecondaryIPv6Addresses": null,
"EndpointID": "",
"Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"IPAddress": "",
"IPPrefixLen": 0,
"IPv6Gateway": "",
"MacAddress": "",
"Networks": {
"host": {
"IPAMConfig": null,
"Links": null,
"Aliases": null,
"NetworkID": "656b532cdc48c9e34e616ec0a38ef944c5e52e2dfca506ca99e53b4b16206000",
"EndpointID": "",
"Gateway": "",
"IPAddress": "",
"IPPrefixLen": 0,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "",
"DriverOpts": null
}
}
}
}
]
If I need provide something else to analyze the problem, please tell me.

Answer 1

When running Docker under Windows or MacOS, you're actually running Docker in a Linux virtual machine. When you set network_mode: host, you're connecting the container to the network environment of the virtual machine. This is seldom going to be useful.
network_mode: host is really only going to make sense when running Docker natively on Linux.
You're better off sticking with port publishing.