docker-magento/compose/magento-2/bin/initloopback

#!/bin/bash

# Script for macOS
sudo ifconfig lo0 alias 10.254.254.254 255.255.255.0
sudo bash -c "curl https://raw.githubusercontent.com/markoshust/magento-docker/master/lib/com.network.alias.plist > /Library/LaunchDaemons/com.network.alias.plist"
sudo chmod 0644 /Library/LaunchDaemons/com.network.alias.plist
sudo chown root:wheel /Library/LaunchDaemons/com.network.alias.plist
sudo launchctl load /Library/LaunchDaemons/com.network.alias.plist

# Script for Fedora
#sudo ip addr add 10.254.254.254 dev lo label lo:0