func()

in pkg/ipamd/datastore/data_store.go [901:952]

• 43 lines of code
• 15 McCabe index (conditional complexity)

func (ds *DataStore) getDeletableENI(warmIPTarget, minimumIPTarget, warmPrefixTarget int) *ENI {
	for _, eni := range ds.eniPool {
		if eni.IsPrimary {
			ds.log.Debugf("ENI %s cannot be deleted because it is primary", eni.ID)
			continue
		}

		if eni.isTooYoung() {
			ds.log.Debugf("ENI %s cannot be deleted because it is too young", eni.ID)
			continue
		}

		if eni.hasIPInCooling(ds.ipCooldownPeriod) {
			ds.log.Debugf("ENI %s cannot be deleted because has IPs in cooling", eni.ID)
			continue
		}

		if eni.hasPods() {
			ds.log.Debugf("ENI %s cannot be deleted because it has pods assigned", eni.ID)
			continue
		}

		if warmIPTarget != 0 && ds.isRequiredForWarmIPTarget(warmIPTarget, eni) {
			ds.log.Debugf("ENI %s cannot be deleted because it is required for WARM_IP_TARGET: %d", eni.ID, warmIPTarget)
			continue
		}

		if minimumIPTarget != 0 && ds.isRequiredForMinimumIPTarget(minimumIPTarget, eni) {
			ds.log.Debugf("ENI %s cannot be deleted because it is required for MINIMUM_IP_TARGET: %d", eni.ID, minimumIPTarget)
			continue
		}

		if ds.isPDEnabled && warmPrefixTarget != 0 && ds.isRequiredForWarmPrefixTarget(warmPrefixTarget, eni) {
			ds.log.Debugf("ENI %s cannot be deleted because it is required for WARM_PREFIX_TARGET: %d", eni.ID, warmPrefixTarget)
			continue
		}

		if eni.IsTrunk {
			ds.log.Debugf("ENI %s cannot be deleted because it is a trunk ENI", eni.ID)
			continue
		}

		if eni.IsEFA {
			ds.log.Debugf("ENI %s cannot be deleted because it is an EFA ENI", eni.ID)
			continue
		}

		ds.log.Debugf("getDeletableENI: found a deletable ENI %s", eni.ID)
		return eni
	}
	return nil
}