I recently created a repo to address the host<->container connectivity issues in Docker for Mac. It’s not an ideal solution by any stretch (it’s very much a hack), but it does suffice for local development. It does have limitations; it only supports a single named host network right now, and must be re-run each time the Docker daemon is restarted (check the Readme). When used in it’s default configuration running ifconfig on your host machine should reveal a new tap1 interface, the IP reported there may be used inside containers connected to named bridge network to access the host machine.