How does a docker container communicate with the host?

General
1

we have a host on which there is a process listening on port 7052.

we also have a container on this host running a service and this service needs to connect to the process running on host at port 7052.

how will it do that? if we use 127.0.0.1:7052 then 127.0.0.1 would map to the docker container itself.

2

Have you tried using the IP of the host?

3

yes, that worked. i was confused for a while how to get that IP.

4

Glad that helped. In general: you might be able to use “ip address” on the host, depending on which Linux distro you’re using for the host, or in Windows you can open a CMD prompt and type “ipconfig”. If you’re on a Mac you can, uh, Google it, 'cause I dunno how to get the IP of a Mac. :smiley: And if you have access to your router DHCP interface, it can probably tell you what IP it’s assigned to the host.