Fix Docker route on Mac after a VPN session

fixDocker.sh

#!/bin/bash

NETRANGE='10.255.0.0/24'

VBOXINF=$( ifconfig | grep vboxnet | grep '<UP' | awk -F':' '{print $1}' )

netstat -rn | grep -q '^10\.255'

if [ $? -eq 0 ]; then
    echo "route already exists"
    exit 0
fi

sudo route add -net $NETRANGE -interface $VBOXINF