func getContainersJSON(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
	if err := parseForm(r); err != nil {
		return err
	}
	var (
		err  error
		outs *engine.Table
		job  = eng.Job("containers")
	)

	job.Setenv("all", r.Form.Get("all"))
	job.Setenv("size", r.Form.Get("size"))
	job.Setenv("since", r.Form.Get("since"))
	job.Setenv("before", r.Form.Get("before"))
	job.Setenv("limit", r.Form.Get("limit"))
	job.Setenv("filters", r.Form.Get("filters"))

	if version.GreaterThanOrEqualTo("1.5") {
		streamJSON(job, w, false)
	} else if outs, err = job.Stdout.AddTable(); err != nil {
		return err
	}
	if err = job.Run(); err != nil {
		return err
	}
	if version.LessThan("1.5") { // Convert to legacy format
		for _, out := range outs.Data {
			ports := engine.NewTable("", 0)
			ports.ReadListFrom([]byte(out.Get("Ports")))
			out.Set("Ports", api.DisplayablePorts(ports))
		}
		w.Header().Set("Content-Type", "application/json")
		if _, err = outs.WriteListTo(w); err != nil {
			return err
		}
	}
	return nil
}

//.........这里部分代码省略.........

		v.Set("filters", filterJSON)
	}

	serverResp, err := cli.call("GET", "/containers/json?"+v.Encode(), nil, nil)
	if err != nil {
		return err
	}

	defer serverResp.body.Close()

	containers := []types.Container{}
	if err := json.NewDecoder(serverResp.body).Decode(&containers); err != nil {
		return err
	}

	w := tabwriter.NewWriter(cli.out, 20, 1, 3, ' ', 0)
	if !*quiet {
		fmt.Fprint(w, "CONTAINER ID\tIMAGE\tCOMMAND\tCREATED\tSTATUS\tPORTS\tNAMES")

		if *size {
			fmt.Fprintln(w, "\tSIZE")
		} else {
			fmt.Fprint(w, "\n")
		}
	}

	stripNamePrefix := func(ss []string) []string {
		for i, s := range ss {
			ss[i] = s[1:]
		}

		return ss
	}

	for _, container := range containers {
		ID := container.ID

		if !*noTrunc {
			ID = stringid.TruncateID(ID)
		}

		if *quiet {
			fmt.Fprintln(w, ID)

			continue
		}

		var (
			names       = stripNamePrefix(container.Names)
			command     = strconv.Quote(container.Command)
			displayPort string
		)

		if !*noTrunc {
			command = stringutils.Truncate(command, 20)

			// only display the default name for the container with notrunc is passed
			for _, name := range names {
				if len(strings.Split(name, "/")) == 1 {
					names = []string{name}
					break
				}
			}
		}

		image := container.Image
		if image == "" {
			image = "<no image>"
		}

		if container.HostConfig.NetworkMode == "host" {
			displayPort = "*/tcp, */udp"
		} else {
			displayPort = api.DisplayablePorts(container.Ports)
		}

		fmt.Fprintf(w, "%s\t%s\t%s\t%s ago\t%s\t%s\t%s\t", ID, image, command,
			units.HumanDuration(time.Now().UTC().Sub(time.Unix(int64(container.Created), 0))),
			container.Status, displayPort, strings.Join(names, ","))

		if *size {
			if container.SizeRootFs > 0 {
				fmt.Fprintf(w, "%s (virtual %s)\n", units.HumanSize(float64(container.SizeRw)), units.HumanSize(float64(container.SizeRootFs)))
			} else {
				fmt.Fprintf(w, "%s\n", units.HumanSize(float64(container.SizeRw)))
			}

			continue
		}

		fmt.Fprint(w, "\n")
	}

	if !*quiet {
		w.Flush()
	}

	return nil
}

func (c *containerContext) Ports() string {
	c.addHeader(portsHeader)
	return api.DisplayablePorts(c.c.Ports)
}

func (cli *KraneCli) CmdPs(args ...string) error {
	cmd := cli.Subcmd("ps", "[OPTIONS]", "List containers")
	quiet := cmd.Bool([]string{"q", "-quiet"}, false, "Only display numeric IDs")
	size := cmd.Bool([]string{"s", "-size"}, false, "Display sizes")
	all := cmd.Bool([]string{"a", "-all"}, false, "Show all containers. Only running containers are shown by default.")
	noTrunc := cmd.Bool([]string{"#notrunc", "-no-trunc"}, false, "Don't truncate output")
	nLatest := cmd.Bool([]string{"l", "-latest"}, false, "Show only the latest created container, include non-running ones.")
	since := cmd.String([]string{"#sinceId", "#-since-id", "-since"}, "", "Show only containers created since Id or Name, include non-running ones.")
	before := cmd.String([]string{"#beforeId", "#-before-id", "-before"}, "", "Show only container created before Id or Name, include non-running ones.")
	last := cmd.Int([]string{"n"}, -1, "Show n last created containers, include non-running ones.")

	if err := cmd.Parse(args); err != nil {
		return nil
	}
	v := url.Values{}
	if *last == -1 && *nLatest {
		*last = 1
	}
	if *all {
		v.Set("all", "1")
	}
	if *last != -1 {
		v.Set("limit", strconv.Itoa(*last))
	}
	if *since != "" {
		v.Set("since", *since)
	}
	if *before != "" {
		v.Set("before", *before)
	}
	if *size {
		v.Set("size", "1")
	}

	body, _, err := readBody(cli.call("GET", "/containers/json?"+v.Encode(), nil, false))
	if err != nil {
		return err
	}

	ships := engine.NewTable("Created", 0)
	if _, err := ships.ReadListFrom(body); err != nil {
		return err
	}

	w := tabwriter.NewWriter(cli.out, 20, 1, 3, ' ', 0)
	if !*quiet {
		fmt.Fprint(w, "CONTAINER ID\tIMAGE\tCOMMAND\tCREATED\tSTATUS\tPORTS\tNAMES\tSHIP")
		if *size {
			fmt.Fprintln(w, "\tSIZE")
		} else {
			fmt.Fprint(w, "\n")
		}
	}

	for _, outShip := range ships.Data {
		var (
			outShipFQDN   = outShip.Get("fqdn")
			outContainers = outShip.Get("Containers")
		)

		outs := engine.NewTable("Created", 0)

		if _, err := outs.ReadListFrom([]byte(outContainers)); err != nil {
			return err
		}

		for _, out := range outs.Data {
			var (
				outID    = out.Get("Id")
				outNames = out.GetList("Names")
			)

			if !*noTrunc {
				outID = utils.TruncateID(outID)
			}

			// Remove the leading / from the names
			for i := 0; i < len(outNames); i++ {
				outNames[i] = outNames[i][1:]
			}

			if !*quiet {
				var (
					outCommand = out.Get("Command")
					ports      = engine.NewTable("", 0)
				)
				outCommand = strconv.Quote(outCommand)
				if !*noTrunc {
					outCommand = utils.Trunc(outCommand, 20)
				}
				ports.ReadListFrom([]byte(out.Get("Ports")))
				fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s ago\t%s\t%s\t%s\t", outID, out.Get("Image"), outCommand, units.HumanDuration(time.Now().UTC().Sub(time.Unix(out.GetInt64("Created"), 0))), out.Get("Status"), api.DisplayablePorts(ports), strings.Join(outNames, ","), outShipFQDN)
				if *size {
					if out.GetInt("SizeRootFs") > 0 {
						fmt.Fprintf(w, "%s (virtual %s)\n", units.HumanSize(out.GetInt64("SizeRw")), units.HumanSize(out.GetInt64("SizeRootFs")))
					} else {
						fmt.Fprintf(w, "%s\n", units.HumanSize(out.GetInt64("SizeRw")))
					}
				} else {
					fmt.Fprint(w, "\n")
//.........这里部分代码省略.........