Put localdocker into your hosts file on OS X

localdocker

#! /bin/bash
# Get the ip from boot2docker
boot2docker_ip=$(sudo -u $SUDO_USER boot2docker ip 2>&1 | awk '{ print $NF }' |  sed -e ':a' -e 'N' -e '$!ba' -e 's/\n//g')
hosts=`cat /etc/hosts | sed "s/^.*localdocker.*$//g"`
echo "$hosts" > /etc/hosts
echo "$boot2docker_ip    localdocker" >> /etc/hosts