controller

type Options struct {
	// The Logger controllers should use.
	Logger logging.Logger

	// The GlobalRateLimiter used by this controller manager. The rate of
	// reconciles across all controllers will be subject to this limit.
	GlobalRateLimiter workqueue.RateLimiter

	// PollInterval at which each controller should speculatively poll to
	// determine whether it has work to do.
	PollInterval time.Duration

	// MaxConcurrentReconciles for each controller.
	MaxConcurrentReconciles int

	// UsePriorityQueue controls whether controller-runtime should use its
	// priority queue implementation when queue wait telemetry is enabled.
	// Defaults to true.
	UsePriorityQueue *bool

	// QueueWaitRecorder records how long requests spend waiting in the
	// controller queue before a worker starts processing them.
	QueueWaitRecorder QueueWaitRecorder
}

type QueueWaitRecorder interface {
	RecordQueueWaitDuration(ctx context.Context, d time.Duration)
	AddQueueDepth(ctx context.Context, delta int64)
	RecordQueueOldestItemAge(ctx context.Context, d time.Duration)
	RecordQueueWorkDuration(ctx context.Context, d time.Duration)
}