Function Prune

pkg/cmd/network/prune.go:31–73

(ctx context.Context, client *containerd.Client, options types.NetworkPruneOptions)

)

func Prune(ctx context.Context, client *containerd.Client, options types.NetworkPruneOptions) error {
	e, err := netutil.NewCNIEnv(options.GOptions.CNIPath, options.GOptions.CNINetConfPath, netutil.WithNamespace(options.GOptions.Namespace))
	if err != nil {
		return err
	}

	usedNetworks, err := netutil.UsedNetworks(ctx, client)
	if err != nil {
		return err
	}

	networkConfigs, err := e.NetworkList()
	if err != nil {
		return err
	}

	var removedNetworks []string // nolint: prealloc
	for _, net := range networkConfigs {
		if strutil.InStringSlice(options.NetworkDriversToKeep, net.Name) {
			continue
		}
		if net.NerdctlID == nil || net.File == "" {
			continue
		}
		if _, ok := usedNetworks[net.Name]; ok {
			continue
		}
		if err := e.RemoveNetwork(net); err != nil {
			log.G(ctx).WithError(err).Errorf("failed to remove network %s", net.Name)
			continue
		}
		removedNetworks = append(removedNetworks, net.Name)
	}

	if len(removedNetworks) > 0 {
		fmt.Fprintln(options.Stdout, "Deleted Networks:")
		for _, name := range removedNetworks {
			fmt.Fprintln(options.Stdout, name)
		}
		fmt.Fprintln(options.Stdout, "")
	}
	return nil
}