#!/bin/bash

# Usage - elb_private_ips [name-of-elb]

aws elb describe-instance-health --load-balancer-name $1 | jq '.InstanceStates' | jq '.[] | .InstanceId' | xargs aws ec2 describe-instances --instance-ids | jq .Reservations | jq '.[] | .Instances[0].PrivateDnsName'