make `PORTS` in `nerdctl ps` or `nerdctl compose ps` easier to view.

[haytok]

What is the problem you're trying to solve

In the latest version, when we start a container specifying multiple port mappings with -p, the following is displayed.

> sudo nerdctl run -d --name nginx -p 22200-22210:22200-22210 nginx
fbe04ad60307165ccfd84aaec5ea1afa6f54bcdcf8200a941ce195a539e8a7ea

> sudo nerdctl ps
CONTAINER ID    IMAGE                             COMMAND                   CREATED          STATUS    PORTS                                                                                                                                                                                                                                                                                           NAMES
fbe04ad60307    docker.io/library/nginx:latest    "/docker-entrypoint.…"    4 seconds ago    Up        0.0.0.0:22200->22200/tcp, 0.0.0.0:22201->22201/tcp, 0.0.0.0:22202->22202/tcp, 0.0.0.0:22203->22203/tcp, 0.0.0.0:22204->22204/tcp, 0.0.0.0:22205->22205/tcp, 0.0.0.0:22206->22206/tcp, 0.0.0.0:22207->22207/tcp, 0.0.0.0:22208->22208/tcp, 0.0.0.0:22209->22209/tcp, 0.0.0.0:22210->22210/tcp    nginx

On the other hand, in Docker, consecutive port mappings are displayed in an easy-to-read manner.

> docker run -d --name nginx -p 22200-22210:22200-22210 nginx
eaf0d0738d61e12bcd8306f2df14937fa752c4a99f60a1c7093e2f5c6bee6b26

> docker ps
CONTAINER ID   IMAGE     COMMAND                  CREATED        STATUS                  PORTS                                                                           NAMES
eaf0d0738d61   nginx     "/docker-entrypoint.…"   1 second ago   Up Less than a second   80/tcp, 0.0.0.0:22200-22210->22200-22210/tcp, :::22200-22210->22200-22210/tcp   nginx

Therefore, in this issue, we'll make PORTS in nerdctl ps or nerdctl compose ps easier to view.

Describe the solution you'd like

Fix FormatPorts()

nerdctl/pkg/formatter/formatter.go

Lines 115 to 128 in b60fbea

	func FormatPorts(labelMap map[string]string) string {
	ports, err := portutil.ParsePortsLabel(labelMap)
	if err != nil {
	log.L.Error(err.Error())
	}
	if len(ports) == 0 {
	return ""
	}
	strs := make([]string, len(ports))
	for i, p := range ports {
	strs[i] = fmt.Sprintf("%s:%d->%d/%s", p.HostIP, p.HostPort, p.ContainerPort, p.Protocol)
	}
	return strings.Join(strs, ", ")
	}

Additional context

related discussions

• fix: allow containers to start using a large numbers of ports #4290 (comment)

[haytok]

HI, maintainers!

I'll work on this issue, so could you assign this to me?

The tag enhancement might be better than kind/feature.