93 lines
2.8 KiB
Go
93 lines
2.8 KiB
Go
package images
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import (
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"bufio"
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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/spf13/cobra"
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)
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var (
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pruneDescription = `Removes dangling or unused images from local storage.`
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pruneCmd = &cobra.Command{
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Use: "prune [options]",
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Args: validate.NoArgs,
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Short: "Remove unused images",
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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 image prune`,
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}
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pruneOpts = entities.ImagePruneOptions{}
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force bool
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filter = []string{}
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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: pruneCmd,
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Parent: buildxCmd,
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})
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registry.Commands = append(registry.Commands, registry.CliCommand{
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Command: pruneCmd,
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Parent: imageCmd,
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})
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flags := pruneCmd.Flags()
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flags.BoolVarP(&pruneOpts.All, "all", "a", false, "Remove all images not in use by containers, not just dangling ones")
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flags.BoolVarP(&pruneOpts.External, "external", "", false, "Remove images even when they are used by external containers (e.g., by build containers)")
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flags.BoolVarP(&force, "force", "f", false, "Do not prompt for confirmation")
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filterFlagName := "filter"
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flags.StringArrayVar(&filter, filterFlagName, []string{}, "Provide filter values (e.g. 'label=<key>=<value>')")
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_ = pruneCmd.RegisterFlagCompletionFunc(filterFlagName, common.AutocompletePruneFilters)
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}
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func prune(cmd *cobra.Command, args []string) error {
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if !force {
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reader := bufio.NewReader(os.Stdin)
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fmt.Printf("%s", createPruneWarningMessage(pruneOpts))
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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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filterMap, err := parse.FilterArgumentsIntoFilters(filter)
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if err != nil {
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return err
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}
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for k, v := range filterMap {
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for _, val := range v {
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pruneOpts.Filter = append(pruneOpts.Filter, fmt.Sprintf("%s=%s", k, val))
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}
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}
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results, err := registry.ImageEngine().Prune(registry.GetContext(), pruneOpts)
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if err != nil {
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return err
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}
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return utils.PrintImagePruneResults(results, false)
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}
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func createPruneWarningMessage(pruneOpts entities.ImagePruneOptions) string {
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question := "Are you sure you want to continue? [y/N] "
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if pruneOpts.All {
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return "WARNING! This command removes all images without at least one container associated with them.\n" + question
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}
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return "WARNING! This command removes all dangling images.\n" + question
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}
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