diff options
Diffstat (limited to 'cmd/podmanV2')
-rw-r--r-- | cmd/podmanV2/pods/top.go | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/cmd/podmanV2/pods/top.go b/cmd/podmanV2/pods/top.go new file mode 100644 index 000000000..5ef282238 --- /dev/null +++ b/cmd/podmanV2/pods/top.go @@ -0,0 +1,90 @@ +package pods + +import ( + "context" + "fmt" + "os" + "strings" + "text/tabwriter" + + "github.com/containers/libpod/cmd/podmanV2/registry" + "github.com/containers/libpod/pkg/domain/entities" + "github.com/containers/psgo" + "github.com/pkg/errors" + "github.com/spf13/cobra" +) + +var ( + topDescription = fmt.Sprintf(`Specify format descriptors to alter the output. + + You may run "podman pod top -l pid pcpu seccomp" to print the process ID, the CPU percentage and the seccomp mode of each process of the latest pod. + Format Descriptors: + %s`, strings.Join(psgo.ListDescriptors(), ",")) + + topOptions = entities.PodTopOptions{} + + topCommand = &cobra.Command{ + Use: "top [flags] POD [FORMAT-DESCRIPTORS|ARGS]", + Short: "Display the running processes in a pod", + Long: topDescription, + PersistentPreRunE: preRunE, + RunE: top, + Args: cobra.ArbitraryArgs, + Example: `podman pod top podID +podman pod top --latest +podman pod top podID pid seccomp args %C +podman pod top podID -eo user,pid,comm`, + } +) + +func init() { + registry.Commands = append(registry.Commands, registry.CliCommand{ + Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode}, + Command: topCommand, + Parent: podCmd, + }) + + topCommand.SetHelpTemplate(registry.HelpTemplate()) + topCommand.SetUsageTemplate(registry.UsageTemplate()) + + flags := topCommand.Flags() + flags.SetInterspersed(false) + flags.BoolVar(&topOptions.ListDescriptors, "list-descriptors", false, "") + flags.BoolVarP(&topOptions.Latest, "latest", "l", false, "Act on the latest container podman is aware of") + + _ = flags.MarkHidden("list-descriptors") // meant only for bash completion + if registry.IsRemote() { + _ = flags.MarkHidden("latest") + } +} + +func top(cmd *cobra.Command, args []string) error { + if topOptions.ListDescriptors { + fmt.Println(strings.Join(psgo.ListDescriptors(), "\n")) + return nil + } + + if len(args) < 1 && !topOptions.Latest { + return errors.Errorf("you must provide the name or id of a running pod") + } + + if topOptions.Latest { + topOptions.Descriptors = args + } else { + topOptions.NameOrID = args[0] + topOptions.Descriptors = args[1:] + } + + topResponse, err := registry.ContainerEngine().PodTop(context.Background(), topOptions) + if err != nil { + return err + } + + w := tabwriter.NewWriter(os.Stdout, 5, 1, 3, ' ', 0) + for _, proc := range topResponse.Value { + if _, err := fmt.Fprintln(w, proc); err != nil { + return err + } + } + return w.Flush() +} |