package client import ( "fmt" "strings" "text/tabwriter" Cli "github.com/docker/docker/cli" flag "github.com/docker/docker/pkg/mflag" ) // CmdTop displays the running processes of a container. // // Usage: docker top CONTAINER func (cli *DockerCli) CmdTop(args ...string) error { cmd := Cli.Subcmd("top", []string{"CONTAINER [ps OPTIONS]"}, Cli.DockerCommands["top"].Description, true) cmd.Require(flag.Min, 1) cmd.ParseFlags(args, true) var arguments []string if cmd.NArg() > 1 { arguments = cmd.Args()[1:] } procList, err := cli.client.ContainerTop(cmd.Arg(0), arguments) if err != nil { return err } w := tabwriter.NewWriter(cli.out, 20, 1, 3, ' ', 0) fmt.Fprintln(w, strings.Join(procList.Titles, "\t")) for _, proc := range procList.Processes { fmt.Fprintln(w, strings.Join(proc, "\t")) } w.Flush() return nil }