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package volumes
import (
"bufio"
"context"
"fmt"
"os"
"strings"
"github.com/containers/libpod/cmd/podman/registry"
"github.com/containers/libpod/cmd/podman/utils"
"github.com/containers/libpod/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",
Args: cobra.NoArgs,
Short: "Remove all unused volumes",
Long: volumePruneDescription,
RunE: prune,
}
)
var (
pruneOptions entities.VolumePruneOptions
)
func init() {
registry.Commands = append(registry.Commands, registry.CliCommand{
Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
Command: pruneCommand,
Parent: volumeCmd,
})
flags := pruneCommand.Flags()
flags.BoolVarP(&pruneOptions.Force, "force", "f", false, "Do not prompt for confirmation")
}
func prune(cmd *cobra.Command, args []string) error {
var (
errs utils.OutputErrors
)
// Prompt for confirmation if --force is not set
if !pruneOptions.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(), pruneOptions)
if err != nil {
return err
}
for _, r := range responses {
if r.Err == nil {
fmt.Println(r.Id)
} else {
errs = append(errs, r.Err)
}
}
return errs.PrintErrors()
}
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