type AttachDetachController interface {
	Run(stopCh <-chan struct{})
	GetDesiredStateOfWorld() cache.DesiredStateOfWorld
}

type TimerConfig struct {
	// ReconcilerLoopPeriod is the amount of time the reconciler loop waits
	// between successive executions
	ReconcilerLoopPeriod time.Duration

	// ReconcilerMaxWaitForUnmountDuration is the maximum amount of time the
	// attach detach controller will wait for a volume to be safely unmounted
	// from its node. Once this time has expired, the controller will assume the
	// node or kubelet are unresponsive and will detach the volume anyway.
	ReconcilerMaxWaitForUnmountDuration time.Duration

	// DesiredStateOfWorldPopulatorLoopSleepPeriod is the amount of time the
	// DesiredStateOfWorldPopulator loop waits between successive executions
	DesiredStateOfWorldPopulatorLoopSleepPeriod time.Duration

	// DesiredStateOfWorldPopulatorListPodsRetryDuration is the amount of
	// time the DesiredStateOfWorldPopulator loop waits between list pods
	// calls.
	DesiredStateOfWorldPopulatorListPodsRetryDuration time.Duration
}

var DefaultTimerConfig TimerConfig = TimerConfig{
	ReconcilerLoopPeriod:                              100 * time.Millisecond,
	ReconcilerMaxWaitForUnmountDuration:               6 * time.Minute,
	DesiredStateOfWorldPopulatorLoopSleepPeriod:       1 * time.Minute,
	DesiredStateOfWorldPopulatorListPodsRetryDuration: 3 * time.Minute,
}