Get container IPs of a Docker service

get_ips_of_docker_service.sh

my_serv=$1
net_id=$(docker service inspect --format '{{.Endpoint.VirtualIPs}}' $my_serv | cut -c 3- | cut -d ' ' -f 1)
net_name=$(docker network inspect --format '{{.Name}}' $net_id)

docker service ps --format '{{.ID}} {{.Node}}' $my_serv |
while read serv_id node_id;
	do
		cont_id=$(docker inspect --format '{{.Status.ContainerStatus.ContainerID}}' $serv_id 2> /dev/null)
		node_ip=$(docker node inspect $node_id --format '{{ .Status.Addr }}' 2> /dev/null)
		cont_ip=$(docker -H $node_ip inspect --format '{{index .NetworkSettings.Networks "'$net_name'" "IPAddress"}}' $cont_id 2> /dev/null)
		echo $cont_ip
	done