问题
In "naked" Docker, I can use --network=host to make the host reachable from the container through the docker0 interface at 127.0.0.1, or I can reach the host at 172.17.0.1.
Ostensibly docker-compose supports the host networking driver through network_mode: host. Unfortunately, this prevents me from using exposed ports. Containers created using docker-compose don't live on the docker0 interface, and hence can reach the host at some IP address like 172.18.0.1 or 172.19.0.1, decided at startup.
Even once I know that address, it doesn't seem to be reachable from the container.
How can I connect from the container to the host?
来源：https://stackoverflow.com/questions/63999693/docker-compose-connect-from-docker-container-to-linux-host