eviction

type CPUPressureEvictionConfiguration struct {
	EnableLoadEviction              bool
	LoadUpperBoundRatio             float64
	LoadThresholdMetPercentage      float64
	LoadMetricRingSize              int
	LoadEvictionCoolDownTime        time.Duration
	EnableSuppressionEviction       bool
	MaxSuppressionToleranceRate     float64
	MinSuppressionToleranceDuration time.Duration
	GracePeriod                     int64
}

type EvictionConfiguration struct {
	// Dryrun plugins is the list of plugins to dryrun
	// '*' means "all dryrun by default"
	// 'foo' means "dryrun 'foo'"
	// first item for a particular name wins
	DryRun []string

	*CPUPressureEvictionConfiguration
	*MemoryPressureEvictionConfiguration
	*RootfsPressureEvictionConfiguration
	*ReclaimedResourcesEvictionConfiguration
	*SystemLoadEvictionPluginConfiguration
}

type MemoryPressureEvictionConfiguration struct {
	EnableNumaLevelEviction                 bool
	EnableSystemLevelEviction               bool
	NumaVictimMinimumUtilizationThreshold   float64
	NumaFreeBelowWatermarkTimesThreshold    int
	SystemFreeMemoryThresholdMinimum        int64
	SystemKswapdRateThreshold               int
	SystemKswapdRateExceedDurationThreshold int
	NumaEvictionRankingMetrics              []string
	SystemEvictionRankingMetrics            []string
	EnableRSSOveruseEviction                bool
	RSSOveruseRateThreshold                 float64
	GracePeriod                             int64
}

type ReclaimedResourcesEvictionConfiguration struct {
	EvictionThreshold             native.ResourceThreshold
	DeletionGracePeriod           int64
	ThresholdMetToleranceDuration int64
}

type RootfsPressureEvictionConfiguration struct {
	EnableRootfsPressureEviction               bool
	MinimumImageFsFreeThreshold                *evictionapi.ThresholdValue
	MinimumImageFsInodesFreeThreshold          *evictionapi.ThresholdValue
	PodMinimumUsedThreshold                    *evictionapi.ThresholdValue
	PodMinimumInodesUsedThreshold              *evictionapi.ThresholdValue
	ReclaimedQoSPodUsedPriorityThreshold       *evictionapi.ThresholdValue
	ReclaimedQoSPodInodesUsedPriorityThreshold *evictionapi.ThresholdValue
	MinimumImageFsDiskCapacityThreshold        *resource.Quantity
	GracePeriod                                int64
}

type SystemLoadEvictionPluginConfiguration struct {
	// SoftThreshold is the soft threshold of system load pressure, it should be an integral multiple of 100, which means
	// the real threshold is (SoftThreshold / 100) * CoreNumber
	SoftThreshold int64
	// HardThreshold is the hard threshold of system load pressure, it should be an integral multiple of 100, which means
	// the real threshold is (SoftThreshold / 100) * CoreNumber
	HardThreshold int64
	// HistorySize is the size of the load metric ring, which is used to calculate the system load
	HistorySize int64
	// SyncPeriod is the interval in seconds of the plugin fetch the load information
	SyncPeriod int64
	// CoolDownTimeInSeconds is the cool-down time of the plugin evict pods
	CoolDownTime int64
	// GracePeriod is the grace period of pod deletion
	GracePeriod int64
	// the plugin considers the node is facing load pressure only when the ratio of load history which is greater than
	// threshold is greater than this percentage
	ThresholdMetPercentage float64
}