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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/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 err
}
if strings.ToLower(answer)[0] != 'y' {
return nil
}
}
responses, err := registry.ContainerEngine().VolumePrune(context.Background())
if err != nil {
return err
}
return utils.PrintVolumePruneResults(responses)
}
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