| package client |
| |
| import ( |
| "encoding/json" |
| "fmt" |
| "net/url" |
| "strings" |
| "text/tabwriter" |
| |
| "github.com/docker/docker/api/types" |
| 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]"}, "Display the running processes of a container", true) |
| cmd.Require(flag.Min, 1) |
| |
| cmd.ParseFlags(args, true) |
| |
| val := url.Values{} |
| if cmd.NArg() > 1 { |
| val.Set("ps_args", strings.Join(cmd.Args()[1:], " ")) |
| } |
| |
| serverResp, err := cli.call("GET", "/containers/"+cmd.Arg(0)+"/top?"+val.Encode(), nil, nil) |
| if err != nil { |
| return err |
| } |
| |
| defer serverResp.body.Close() |
| |
| procList := types.ContainerProcessList{} |
| if err := json.NewDecoder(serverResp.body).Decode(&procList); 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 |
| } |