12 type NetDevConfig map[string]interface{}
14 type YamlTopology struct {
15 Devices []NetDevConfig `yaml:"devices"`
18 func AddAddress(device, address, ns string) error {
19 c := []string{"ip", "addr", "add", address, "dev", device}
20 cmd := appendNetns(c, ns)
23 return fmt.Errorf("failed to set ip address for %s: %v", device, err)
28 func convertToNetConfig(t *YamlTopology) (*NetTopology, error) {
29 var topology NetTopology
30 for _, dev := range t.Devices {
31 topology = append(topology, NewNetConfig(dev))
36 func loadTopoFile(topoName string) (*NetTopology, error) {
37 var yamlTopo YamlTopology
39 data, err := ioutil.ReadFile(topoName)
41 return nil, fmt.Errorf("read error: %v", err)
44 err = yaml.Unmarshal(data, &yamlTopo)
46 return nil, fmt.Errorf("error parsing topology data: %v", err)
49 return convertToNetConfig(&yamlTopo)
52 func LoadTopology(path, topoName string) (*NetTopology, error) {
53 dir, err := os.Open(path)
59 files, err := dir.Readdir(0)
64 for i := range files {
66 fileName := file.Name()
68 // cut off file extension
69 f := strings.Split(fileName, ".")[0]
71 return loadTopoFile(path + fileName)
74 return nil, fmt.Errorf("topology '%s' not found", topoName)