package system import ( "bufio" "context" "fmt" "os" "strings" "github.com/containers/common/pkg/completion" "github.com/containers/podman/v2/cmd/podman/registry" "github.com/containers/podman/v2/cmd/podman/utils" "github.com/containers/podman/v2/cmd/podman/validate" lpfilters "github.com/containers/podman/v2/libpod/filters" "github.com/containers/podman/v2/pkg/domain/entities" "github.com/spf13/cobra" ) var ( pruneOptions = entities.SystemPruneOptions{} filters []string pruneDescription = fmt.Sprintf(` podman system prune Remove unused data `) pruneCommand = &cobra.Command{ Use: "prune [options]", Short: "Remove unused data", Args: validate.NoArgs, Long: pruneDescription, RunE: prune, ValidArgsFunction: completion.AutocompleteNone, Example: `podman system prune`, } force bool ) func init() { registry.Commands = append(registry.Commands, registry.CliCommand{ Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode}, Command: pruneCommand, Parent: systemCmd, }) flags := pruneCommand.Flags() flags.BoolVarP(&force, "force", "f", false, "Do not prompt for confirmation. The default is false") flags.BoolVarP(&pruneOptions.All, "all", "a", false, "Remove all unused data") flags.BoolVar(&pruneOptions.Volume, "volumes", false, "Prune volumes") filterFlagName := "filter" flags.StringArrayVar(&filters, filterFlagName, []string{}, "Provide filter values (e.g. 'label==')") _ = pruneCommand.RegisterFlagCompletionFunc(filterFlagName, completion.AutocompleteNone) } func prune(cmd *cobra.Command, args []string) error { var err error // Prompt for confirmation if --force is not set if !force { reader := bufio.NewReader(os.Stdin) volumeString := "" if pruneOptions.Volume { volumeString = ` - all volumes not used by at least one container` } fmt.Printf(` WARNING! This will remove: - all stopped containers%s - all stopped pods - all dangling images - all build cache Are you sure you want to continue? [y/N] `, volumeString) answer, err := reader.ReadString('\n') if err != nil { return err } if strings.ToLower(answer)[0] != 'y' { return nil } } pruneOptions.Filters, err = lpfilters.ParseFilterArgumentsIntoFilters(filters) if err != nil { return err } response, err := registry.ContainerEngine().SystemPrune(context.Background(), pruneOptions) if err != nil { return err } // Print container prune results err = utils.PrintContainerPruneResults(response.ContainerPruneReport, true) if err != nil { return err } // Print pod prune results err = utils.PrintPodPruneResults(response.PodPruneReport, true) if err != nil { return err } // Print Volume prune results if pruneOptions.Volume { err = utils.PrintVolumePruneResults(response.VolumePruneReport, true) if err != nil { return err } } // Print Images prune results return utils.PrintImagePruneResults(response.ImagePruneReport, true) }