package volumes 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" "github.com/containers/podman/v2/pkg/domain/entities" "github.com/pkg/errors" "github.com/spf13/cobra" ) var ( volumePruneDescription = `Volumes that are not currently owned by a container will be removed. The command prompts for confirmation which can be overridden with the --force flag. Note all data will be destroyed.` pruneCommand = &cobra.Command{ Use: "prune [options]", Args: validate.NoArgs, Short: "Remove all unused volumes", Long: volumePruneDescription, RunE: prune, ValidArgsFunction: completion.AutocompleteNone, } ) func init() { registry.Commands = append(registry.Commands, registry.CliCommand{ Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode}, Command: pruneCommand, Parent: volumeCmd, }) flags := pruneCommand.Flags() flags.BoolP("force", "f", false, "Do not prompt for confirmation") } func prune(cmd *cobra.Command, args []string) error { // Prompt for confirmation if --force is not set force, err := cmd.Flags().GetBool("force") if err != nil { return err } if !force { reader := bufio.NewReader(os.Stdin) fmt.Println("WARNING! This will remove all volumes not used by at least one container.") fmt.Print("Are you sure you want to continue? [y/N] ") answer, err := reader.ReadString('\n') if err != nil { return errors.Wrapf(err, "error reading input") } if strings.ToLower(answer)[0] != 'y' { return nil } } responses, err := registry.ContainerEngine().VolumePrune(context.Background()) if err != nil { return err } return utils.PrintVolumePruneResults(responses) }