package network import ( "bufio" "fmt" "os" "strings" "github.com/containers/podman/v4/cmd/podman/common" "github.com/containers/podman/v4/cmd/podman/parse" "github.com/containers/podman/v4/cmd/podman/registry" "github.com/containers/podman/v4/cmd/podman/utils" "github.com/containers/podman/v4/cmd/podman/validate" "github.com/containers/podman/v4/pkg/domain/entities" "github.com/spf13/cobra" "github.com/spf13/pflag" ) var ( networkPruneDescription = `Prune unused networks` networkPruneCommand = &cobra.Command{ Use: "prune [options]", Short: "network prune", Long: networkPruneDescription, RunE: networkPrune, Example: `podman network prune`, Args: validate.NoArgs, ValidArgsFunction: common.AutocompleteNetworks, } ) var ( networkPruneOptions entities.NetworkPruneOptions force bool filter = []string{} ) func networkPruneFlags(cmd *cobra.Command, flags *pflag.FlagSet) { flags.BoolVarP(&force, "force", "f", false, "do not prompt for confirmation") filterFlagName := "filter" flags.StringArrayVar(&filter, filterFlagName, []string{}, "Provide filter values (e.g. 'label==')") _ = cmd.RegisterFlagCompletionFunc(filterFlagName, common.AutocompletePruneFilters) } func init() { registry.Commands = append(registry.Commands, registry.CliCommand{ Command: networkPruneCommand, Parent: networkCmd, }) flags := networkPruneCommand.Flags() networkPruneFlags(networkPruneCommand, flags) } func networkPrune(cmd *cobra.Command, _ []string) error { var ( errs utils.OutputErrors err error ) if !force { reader := bufio.NewReader(os.Stdin) fmt.Println("WARNING! This will remove all networks 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 } } networkPruneOptions.Filters, err = parse.FilterArgumentsIntoFilters(filter) if err != nil { return err } responses, err := registry.ContainerEngine().NetworkPrune(registry.Context(), networkPruneOptions) if err != nil { setExitCode(err) return err } for _, r := range responses { if r.Error == nil { fmt.Println(r.Name) } else { setExitCode(r.Error) errs = append(errs, r.Error) } } return errs.PrintErrors() }