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package network
import (
"bufio"
"fmt"
"os"
"strings"
"github.com/containers/podman/v3/cmd/podman/common"
"github.com/containers/podman/v3/cmd/podman/registry"
"github.com/containers/podman/v3/cmd/podman/utils"
"github.com/containers/podman/v3/cmd/podman/validate"
"github.com/containers/podman/v3/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
)
func networkPruneFlags(flags *pflag.FlagSet) {
//TODO: Not implemented but for future reference
//flags.StringSliceVar(&networkPruneOptions.Filters,"filters", []string{}, "provide filter values (e.g. 'until=<timestamp>')")
flags.BoolVarP(&force, "force", "f", false, "do not prompt for confirmation")
}
func init() {
registry.Commands = append(registry.Commands, registry.CliCommand{
Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
Command: networkPruneCommand,
Parent: networkCmd,
})
flags := networkPruneCommand.Flags()
networkPruneFlags(flags)
}
func networkPrune(cmd *cobra.Command, _ []string) error {
var (
errs utils.OutputErrors
)
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
}
}
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()
}
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