mirror of https://github.com/containers/podman.git
132 lines
3.5 KiB
Go
132 lines
3.5 KiB
Go
package system
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import (
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"bufio"
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"context"
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"fmt"
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"os"
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"strings"
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"github.com/containers/common/pkg/completion"
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"github.com/containers/podman/v4/cmd/podman/common"
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"github.com/containers/podman/v4/cmd/podman/parse"
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"github.com/containers/podman/v4/cmd/podman/registry"
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"github.com/containers/podman/v4/cmd/podman/utils"
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"github.com/containers/podman/v4/cmd/podman/validate"
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"github.com/containers/podman/v4/pkg/domain/entities"
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"github.com/docker/go-units"
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"github.com/spf13/cobra"
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)
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var (
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pruneOptions = entities.SystemPruneOptions{}
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filters []string
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pruneDescription = `
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podman system prune
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Remove unused data
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`
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pruneCommand = &cobra.Command{
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Use: "prune [options]",
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Short: "Remove unused data",
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Args: validate.NoArgs,
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Long: pruneDescription,
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RunE: prune,
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ValidArgsFunction: completion.AutocompleteNone,
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Example: `podman system prune`,
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}
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force bool
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)
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func init() {
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registry.Commands = append(registry.Commands, registry.CliCommand{
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Command: pruneCommand,
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Parent: systemCmd,
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})
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flags := pruneCommand.Flags()
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flags.BoolVarP(&force, "force", "f", false, "Do not prompt for confirmation. The default is false")
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flags.BoolVarP(&pruneOptions.All, "all", "a", false, "Remove all unused data")
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flags.BoolVar(&pruneOptions.Volume, "volumes", false, "Prune volumes")
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filterFlagName := "filter"
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flags.StringArrayVar(&filters, filterFlagName, []string{}, "Provide filter values (e.g. 'label=<key>=<value>')")
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_ = pruneCommand.RegisterFlagCompletionFunc(filterFlagName, common.AutocompletePruneFilters)
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}
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func prune(cmd *cobra.Command, args []string) error {
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var err error
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// Prompt for confirmation if --force is not set
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if !force {
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reader := bufio.NewReader(os.Stdin)
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volumeString := ""
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if pruneOptions.Volume {
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volumeString = `
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- all volumes not used by at least one container`
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}
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fmt.Printf(createPruneWarningMessage(pruneOptions), volumeString, "Are you sure you want to continue? [y/N] ")
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answer, err := reader.ReadString('\n')
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if err != nil {
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return err
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}
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if strings.ToLower(answer)[0] != 'y' {
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return nil
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}
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}
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pruneOptions.Filters, err = parse.FilterArgumentsIntoFilters(filters)
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if err != nil {
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return err
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}
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response, err := registry.ContainerEngine().SystemPrune(context.Background(), pruneOptions)
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if err != nil {
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return err
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}
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// Print container prune results
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err = utils.PrintContainerPruneResults(response.ContainerPruneReports, true)
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if err != nil {
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return err
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}
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// Print pod prune results
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err = utils.PrintPodPruneResults(response.PodPruneReport, true)
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if err != nil {
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return err
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}
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// Print Volume prune results
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if pruneOptions.Volume {
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err = utils.PrintVolumePruneResults(response.VolumePruneReports, true)
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if err != nil {
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return err
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}
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}
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// Print Images prune results
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err = utils.PrintImagePruneResults(response.ImagePruneReports, true)
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if err != nil {
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return err
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}
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fmt.Printf("Total reclaimed space: %s\n", units.HumanSize((float64)(response.ReclaimedSpace)))
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return nil
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}
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func createPruneWarningMessage(pruneOpts entities.SystemPruneOptions) string {
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if pruneOpts.All {
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return `WARNING! This command removes:
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- all stopped containers
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- all networks not used by at least one container%s
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- all images without at least one container associated with them
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- all build cache
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%s`
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}
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return `WARNING! This command removes:
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- all stopped containers
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- all networks not used by at least one container%s
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- all dangling images
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- all dangling build cache
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%s`
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}
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