Docker (Mac) De-facto Standard Host Address Alias
This launchd script will ensure that your Docker environment on your Mac will have 10.254.254.254 as an alias on your loopback device (127.0.0.1). The command being run is
ifconfig lo0 alias 10.254.254.254
Copy/Paste the following in terminal with sudo (must be root as the target directory is owned by root)...
sudo curl -o /Library/LaunchDaemons/com.ralphschindler.docker_10254_alias.plist https://gist.githubusercontent.com/ralphschindler/535dc5916ccbd06f53c1b0ee5a868c93/raw/com.ralphschindler.docker_10254_alias.plist