Function ReconfigNetContainer

pkg/containerutil/config.go:38–79

ReconfigNetContainer reconfigures the container's network namespace path.

(ctx context.Context, c containerd.Container, client *containerd.Client, lab map[string]string)

// ReconfigNetContainer reconfigures the container's network namespace path.
func ReconfigNetContainer(ctx context.Context, c containerd.Container, client *containerd.Client, lab map[string]string) error {
	networksJSON, ok := lab[labels.Networks]
	if !ok {
		return nil
	}
	var networks []string
	if err := json.Unmarshal([]byte(networksJSON), &networks); err != nil {
		return err
	}
	netType, err := nettype.Detect(networks)
	if err != nil {
		return err
	}
	if netType == nettype.Container {
		network := strings.Split(networks[0], ":")
		if len(network) != 2 {
			return fmt.Errorf("invalid network: %s, should be \"container:<id|name>\"", networks[0])
		}
		targetCon, err := client.LoadContainer(ctx, network[1])
		if err != nil {
			return err
		}
		netNSPath, err := ContainerNetNSPath(ctx, targetCon)
		if err != nil {
			return err
		}
		spec, err := c.Spec(ctx)
		if err != nil {
			return err
		}
		err = c.Update(ctx, containerd.UpdateContainerOpts(
			containerd.WithSpec(spec, oci.WithLinuxNamespace(
				specs.LinuxNamespace{
					Type: specs.NetworkNamespace,
					Path: netNSPath,
				}))))
		if err != nil {
			return err
		}
	}
	return nil
}

// ReconfigPIDContainer reconfigures the container's spec options for sharing PID namespace.
func ReconfigPIDContainer(ctx context.Context, c containerd.Container, client *containerd.Client, lab map[string]string) error {