Host.docker.internal not resolving correctly

Docker Desktop
1

As of v 4.23, our usage of ${DOCKER_HOST_GATEWAY:host.docker.internal} is broken. We are using this in a docker-compose file in order to whitelist the host machine with one of the containers (dgraph, if it matters.)

You can tell from the container’s logs, that 192.168.65.254 is being provided as the IP address of host.docker.internal. But when the host machine is actually trying to access the container, it is being reported as 192.168.65.1

This happens on 4.23 and 4.24. If I rollback to 4.22, everything works as it has for the past 9 months or so.

Has something changed? I see in the 4.23 release notes that the mac networking was reworked, did something break or is something else required now?

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This is still happening as of 4.25.0 (also checked on 4.24.2…) Can anyone else confirm for me that they are not seeing this behavior? I can’t find any mention of needing to change anything from 4.23 onward but the release notes claiming the that the mac networking was reworked makes me suspicious.

To restate… host.docker.internal is getting resolved as 192.168.65.254 at container startup (which is being used for a whitelist) but when I use the localhost to access a container at runtime, it is coming through 192.168.65.1 and is therefore getting blocked.

Rolling back to 4.22 completely resolves the problem.