code: func (m *yamlManager) GetGlobalConfig() (*GlobalConfig, error) {
  	globalConfig := &GlobalConfig{}
  	LoadFile(path.Join(m.ConfigDir, "cf-mgmt.yml"), globalConfig)
  	if len(globalConfig.MetadataPrefix) == 0 {
  		globalConfig.MetadataPrefix = "cf-mgmt.pivotal.io"
  	}
  	return globalConfig, nil
  }
docs: // GetIsolationSegmentConfig reads isolation segment config