ローカル側のIPを取得
aws ec2 describe-network-interfaces --filters "Name=description,Values=${ELBのENIのDescription}" | jq -r '.NetworkInterfaces[] | .PrivateIpAddress' | sort
パブリック側のIPを取得
aws ec2 describe-network-interfaces --filters "Name=description,Values=${ELBのENIのDescription}" | jq -r '.NetworkInterfaces[] | .Association.PublicIp' | sort