// GetSandboxPortMapInfo retrieves the current port-mapping programmed for the given sandbox func GetSandboxPortMapInfo(sb libnetwork.Sandbox) nat.PortMap { pm := nat.PortMap{} if sb == nil { return pm } for _, ep := range sb.Endpoints() { pm, _ = getEndpointPortMapInfo(ep) if len(pm) > 0 { break } } return pm }