mirror of
https://github.com/containers/podman.git
synced 2025-05-21 17:16:22 +08:00
130 lines
3.0 KiB
Go
130 lines
3.0 KiB
Go
package network
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import (
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"encoding/json"
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"fmt"
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"html/template"
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"os"
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"strings"
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"text/tabwriter"
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"github.com/containers/libpod/cmd/podman/registry"
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"github.com/containers/libpod/cmd/podman/validate"
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"github.com/containers/libpod/pkg/domain/entities"
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"github.com/containers/libpod/pkg/network"
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"github.com/spf13/cobra"
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"github.com/spf13/pflag"
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)
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var (
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networklistDescription = `List networks`
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networklistCommand = &cobra.Command{
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Use: "ls",
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Args: validate.NoArgs,
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Short: "network list",
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Long: networklistDescription,
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RunE: networkList,
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Example: `podman network list`,
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Annotations: map[string]string{
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registry.ParentNSRequired: "",
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},
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}
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)
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var (
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networkListOptions entities.NetworkListOptions
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headers string = "NAME\tVERSION\tPLUGINS\n"
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defaultListRow string = "{{.Name}}\t{{.Version}}\t{{.Plugins}}\n"
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)
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func networkListFlags(flags *pflag.FlagSet) {
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// TODO enable filters based on something
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//flags.StringSliceVarP(&networklistCommand.Filter, "filter", "f", []string{}, "Pause all running containers")
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flags.StringVarP(&networkListOptions.Format, "format", "f", "", "Pretty-print containers to JSON or using a Go template")
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flags.BoolVarP(&networkListOptions.Quiet, "quiet", "q", false, "display only names")
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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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Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
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Command: networklistCommand,
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Parent: networkCmd,
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})
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flags := networklistCommand.Flags()
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networkListFlags(flags)
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}
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func networkList(cmd *cobra.Command, args []string) error {
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var (
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nlprs []NetworkListPrintReports
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)
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responses, err := registry.ContainerEngine().NetworkList(registry.Context(), networkListOptions)
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if err != nil {
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return err
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}
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// quiet means we only print the network names
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if networkListOptions.Quiet {
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return quietOut(responses)
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}
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if networkListOptions.Format == "json" {
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return jsonOut(responses)
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}
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for _, r := range responses {
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nlprs = append(nlprs, NetworkListPrintReports{r})
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}
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row := networkListOptions.Format
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if len(row) < 1 {
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row = defaultListRow
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}
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if !strings.HasSuffix(row, "\n") {
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row += "\n"
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}
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format := "{{range . }}" + row + "{{end}}"
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if !cmd.Flag("format").Changed {
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format = headers + format
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}
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tmpl, err := template.New("listNetworks").Parse(format)
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if err != nil {
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return err
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}
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w := tabwriter.NewWriter(os.Stdout, 8, 2, 2, ' ', 0)
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if err := tmpl.Execute(w, nlprs); err != nil {
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return err
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}
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return w.Flush()
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}
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func quietOut(responses []*entities.NetworkListReport) error {
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for _, r := range responses {
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fmt.Println(r.Name)
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}
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return nil
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}
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func jsonOut(responses []*entities.NetworkListReport) error {
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b, err := json.MarshalIndent(responses, "", " ")
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if err != nil {
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return err
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}
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fmt.Println(string(b))
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return nil
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}
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type NetworkListPrintReports struct {
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*entities.NetworkListReport
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}
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func (n NetworkListPrintReports) Version() string {
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return n.CNIVersion
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}
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func (n NetworkListPrintReports) Plugins() string {
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return network.GetCNIPlugins(n.NetworkConfigList)
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}
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