kubernetes-the-hard-way/scripts/node_ip_addresses

#!/usr/bin/env bash
SCRIPTS_DIR=$(dirname $0)

for vagrant_box in $($SCRIPTS_DIR/node_names $1)
do
    ip_address=$(vagrant ssh $vagrant_box -c "hostname -I | cut -d' ' -f2" 2>/dev/null)
    echo "$vagrant_box $ip_address"
done