code: func (c *containerLogManager) Start() {
  	// Start a goroutine periodically does container log rotation.
  	go wait.Forever(func() {
  		if err := c.rotateLogs(); err != nil {
  			klog.Errorf("Failed to rotate container logs: %v", err)
  		}
  	}, logMonitorPeriod)
  }
docs: // Start the container log manager.