code: func (process *TeleportProcess) connectToAuthService(role teleport.Role) (*Connector, error) {
  	connector, err := process.connect(role)
  	if err != nil {
  		return nil, trace.Wrap(err)
  	}
  	process.Debugf("Connected client: %v", connector.ClientIdentity)
  	process.Debugf("Connected server: %v", connector.ServerIdentity)
  	process.addConnector(connector)
  
  	return connector, nil
  }
docs: // connectToAuthService attempts to login into the auth servers specified in the
  // configuration and receive credentials.