Method needsBackoffPeriod

coderd/prebuilds/preset_snapshot.go:423–438

needsBackoffPeriod checks if we should delay prebuild creation due to recent failures. If there were failures, it calculates a backoff period based on the number of failures and returns true if we're still within that period.

(clock quartz.Clock, backoffInterval time.Duration)

// If there were failures, it calculates a backoff period based on the number of failures
// and returns true if we're still within that period.
func (p PresetSnapshot) needsBackoffPeriod(clock quartz.Clock, backoffInterval time.Duration) ([]*ReconciliationActions, bool) {
	if p.Backoff == nil || p.Backoff.NumFailed == 0 {
		return nil, false
	}
	backoffUntil := p.Backoff.LastBuildAt.Add(time.Duration(p.Backoff.NumFailed) * backoffInterval)
	if clock.Now().After(backoffUntil) {
		return nil, false
	}

	return []*ReconciliationActions{
		{
			ActionType:   ActionTypeBackoff,
			BackoffUntil: backoffUntil,
		},
	}, true
}

// countEligible returns the number of prebuilds that are ready to be claimed.
// A prebuild is eligible if it's running and its agents are in ready state.