| 74 | } |
| 75 | |
| 76 | func validateVariable(key, value string) error { |
| 77 | if key == "" { |
| 78 | return errors.New("empty value for key is not permitted") |
| 79 | } |
| 80 | if key[0] == '_' { |
| 81 | return errors.New("hidden key is not permitted") |
| 82 | } |
| 83 | if value == "" && emptyNotAllowed[key] { |
| 84 | return fmt.Errorf("empty value for %q is not permitted", key) |
| 85 | } |
| 86 | switch key { |
| 87 | case SpecialKeyCoreosVersion: |
| 88 | // TODO: more validation |
| 89 | case SpecialKeyNetworkConfiguration: |
| 90 | _, err := UnmarshalNetworkConfiguration(value) |
| 91 | return err |
| 92 | } |
| 93 | return nil |
| 94 | } |