validation

package
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 Go to latest Published: Mar 21, 2022 License: AGPL-3.0 Imports: 15 Imported by: 0

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Index

Constants

View Source 
const (
	LocalIngestionRateStrategy  = "local"
	GlobalIngestionRateStrategy = "global"
)

Supported values for enum limits

View Source 
const (
	// ErrQueryTooLong is used in chunk store, querier and query frontend.
	ErrQueryTooLong = "the query time range exceeds the limit (query length: %s, limit: %s)"

	// RateLimited is one of the values for the reason to discard samples.
	// Declared here to avoid duplication in ingester and distributor.
	RateLimited = "rate_limited"

	// Too many HA clusters is one of the reasons for discarding samples.
	TooManyHAClusters = "too_many_ha_clusters"

	// DroppedByRelabelConfiguration Samples can also be discarded because of relabeling configuration
	DroppedByRelabelConfiguration = "relabel_configuration"
	// DroppedByUserConfigurationOverride Samples discarded due to user configuration removing label __name__
	DroppedByUserConfigurationOverride = "user_label_removal_configuration"

	// The combined length of the label names and values of an Exemplar's LabelSet MUST NOT exceed 128 UTF-8 characters
	// https://github.com/OpenObservability/OpenMetrics/blob/main/specification/OpenMetrics.md#exemplars
	ExemplarMaxLabelSetLength = 128
)

Variables

This section is empty.

Functions

func MaxDurationOrZeroPerTenant 

func MaxDurationOrZeroPerTenant(tenantIDs []string, f func(string) time.Duration) time.Duration

MaxDurationOrDisabledPerTenant is returning the maximum duration per tenant or zero if one tenant has time.Duration(0).

func MaxDurationPerTenant 

func MaxDurationPerTenant(tenantIDs []string, f func(string) time.Duration) time.Duration

MaxDurationPerTenant is returning the maximum duration per tenant. Without tenants given it will return a time.Duration(0).

func SetDefaultLimitsForYAMLUnmarshalling 

func SetDefaultLimitsForYAMLUnmarshalling(defaults Limits)

SetDefaultLimitsForYAMLUnmarshalling sets global default limits, used when loading Limits from YAML files. This is used to ensure per-tenant limits are defaulted to those values.

func SmallestPositiveIntPerTenant 

func SmallestPositiveIntPerTenant(tenantIDs []string, f func(string) int) int

SmallestPositiveIntPerTenant is returning the minimal positive value of the supplied limit function for all given tenants.

func SmallestPositiveNonZeroDurationPerTenant 

func SmallestPositiveNonZeroDurationPerTenant(tenantIDs []string, f func(string) time.Duration) time.Duration

SmallestPositiveNonZeroDurationPerTenant is returning the minimal positive and non-zero value of the supplied limit function for all given tenants. In many limits a value of 0 means unlimted so the method will return 0 only if all inputs have a limit of 0 or an empty tenant list is given.

func SmallestPositiveNonZeroIntPerTenant 

func SmallestPositiveNonZeroIntPerTenant(tenantIDs []string, f func(string) int) int

SmallestPositiveNonZeroIntPerTenant is returning the minimal positive and non-zero value of the supplied limit function for all given tenants. In many limits a value of 0 means unlimted so the method will return 0 only if all inputs have a limit of 0 or an empty tenant list is given.

Types

type LimitError 

type LimitError string

LimitError are errors that do not comply with the limits specified.

func (LimitError) Error 

func (e LimitError) Error() string

type Limits 

type Limits struct {
	// Distributor enforced limits.
	IngestionRate             float64             `yaml:"ingestion_rate" json:"ingestion_rate"`
	IngestionRateStrategy     string              `yaml:"ingestion_rate_strategy" json:"ingestion_rate_strategy"`
	IngestionBurstSize        int                 `yaml:"ingestion_burst_size" json:"ingestion_burst_size"`
	AcceptHASamples           bool                `yaml:"accept_ha_samples" json:"accept_ha_samples"`
	HAClusterLabel            string              `yaml:"ha_cluster_label" json:"ha_cluster_label"`
	HAReplicaLabel            string              `yaml:"ha_replica_label" json:"ha_replica_label"`
	HAMaxClusters             int                 `yaml:"ha_max_clusters" json:"ha_max_clusters"`
	DropLabels                flagext.StringSlice `yaml:"drop_labels" json:"drop_labels"`
	MaxLabelNameLength        int                 `yaml:"max_label_name_length" json:"max_label_name_length"`
	MaxLabelValueLength       int                 `yaml:"max_label_value_length" json:"max_label_value_length"`
	MaxLabelNamesPerSeries    int                 `yaml:"max_label_names_per_series" json:"max_label_names_per_series"`
	MaxMetadataLength         int                 `yaml:"max_metadata_length" json:"max_metadata_length"`
	RejectOldSamples          bool                `yaml:"reject_old_samples" json:"reject_old_samples"`
	RejectOldSamplesMaxAge    model.Duration      `yaml:"reject_old_samples_max_age" json:"reject_old_samples_max_age"`
	CreationGracePeriod       model.Duration      `yaml:"creation_grace_period" json:"creation_grace_period"`
	EnforceMetadataMetricName bool                `yaml:"enforce_metadata_metric_name" json:"enforce_metadata_metric_name"`
	EnforceMetricName         bool                `yaml:"enforce_metric_name" json:"enforce_metric_name"`
	IngestionTenantShardSize  int                 `yaml:"ingestion_tenant_shard_size" json:"ingestion_tenant_shard_size"`
	MetricRelabelConfigs      []*relabel.Config   `` /* 295-byte string literal not displayed */

	// Ingester enforced limits.
	// Series
	MaxSeriesPerQuery        int `yaml:"max_series_per_query" json:"max_series_per_query"`
	MaxSamplesPerQuery       int `yaml:"max_samples_per_query" json:"max_samples_per_query"`
	MaxLocalSeriesPerUser    int `yaml:"max_series_per_user" json:"max_series_per_user"`
	MaxLocalSeriesPerMetric  int `yaml:"max_series_per_metric" json:"max_series_per_metric"`
	MaxGlobalSeriesPerUser   int `yaml:"max_global_series_per_user" json:"max_global_series_per_user"`
	MaxGlobalSeriesPerMetric int `yaml:"max_global_series_per_metric" json:"max_global_series_per_metric"`
	MinChunkLength           int `yaml:"min_chunk_length" json:"min_chunk_length"`
	// Metadata
	MaxLocalMetricsWithMetadataPerUser  int `yaml:"max_metadata_per_user" json:"max_metadata_per_user"`
	MaxLocalMetadataPerMetric           int `yaml:"max_metadata_per_metric" json:"max_metadata_per_metric"`
	MaxGlobalMetricsWithMetadataPerUser int `yaml:"max_global_metadata_per_user" json:"max_global_metadata_per_user"`
	MaxGlobalMetadataPerMetric          int `yaml:"max_global_metadata_per_metric" json:"max_global_metadata_per_metric"`

	// Querier enforced limits.
	MaxChunksPerQueryFromStore   int            `yaml:"max_chunks_per_query" json:"max_chunks_per_query"` // TODO Remove in Cortex 1.12.
	MaxChunksPerQuery            int            `yaml:"max_fetched_chunks_per_query" json:"max_fetched_chunks_per_query"`
	MaxFetchedSeriesPerQuery     int            `yaml:"max_fetched_series_per_query" json:"max_fetched_series_per_query"`
	MaxFetchedChunkBytesPerQuery int            `yaml:"max_fetched_chunk_bytes_per_query" json:"max_fetched_chunk_bytes_per_query"`
	MaxQueryLookback             model.Duration `yaml:"max_query_lookback" json:"max_query_lookback"`
	MaxQueryLength               model.Duration `yaml:"max_query_length" json:"max_query_length"`
	MaxQueryParallelism          int            `yaml:"max_query_parallelism" json:"max_query_parallelism"`
	CardinalityLimit             int            `yaml:"cardinality_limit" json:"cardinality_limit"`
	MaxCacheFreshness            model.Duration `yaml:"max_cache_freshness" json:"max_cache_freshness"`
	MaxQueriersPerTenant         int            `yaml:"max_queriers_per_tenant" json:"max_queriers_per_tenant"`

	// Ruler defaults and limits.
	RulerEvaluationDelay        model.Duration `yaml:"ruler_evaluation_delay_duration" json:"ruler_evaluation_delay_duration"`
	RulerTenantShardSize        int            `yaml:"ruler_tenant_shard_size" json:"ruler_tenant_shard_size"`
	RulerMaxRulesPerRuleGroup   int            `yaml:"ruler_max_rules_per_rule_group" json:"ruler_max_rules_per_rule_group"`
	RulerMaxRuleGroupsPerTenant int            `yaml:"ruler_max_rule_groups_per_tenant" json:"ruler_max_rule_groups_per_tenant"`

	// Store-gateway.
	StoreGatewayTenantShardSize int `yaml:"store_gateway_tenant_shard_size" json:"store_gateway_tenant_shard_size"`

	// Compactor.
	CompactorBlocksRetentionPeriod model.Duration `yaml:"compactor_blocks_retention_period" json:"compactor_blocks_retention_period"`

	// This config doesn't have a CLI flag registered here because they're registered in
	// their own original config struct.
	S3SSEType                 string `` /* 221-byte string literal not displayed */
	S3SSEKMSKeyID             string `` /* 156-byte string literal not displayed */
	S3SSEKMSEncryptionContext string `` /* 284-byte string literal not displayed */

	// Alertmanager.
	AlertmanagerReceiversBlockCIDRNetworks     flagext.CIDRSliceCSV `yaml:"alertmanager_receivers_firewall_block_cidr_networks" json:"alertmanager_receivers_firewall_block_cidr_networks"`
	AlertmanagerReceiversBlockPrivateAddresses bool                 `yaml:"alertmanager_receivers_firewall_block_private_addresses" json:"alertmanager_receivers_firewall_block_private_addresses"`

	NotificationRateLimit               float64                  `yaml:"alertmanager_notification_rate_limit" json:"alertmanager_notification_rate_limit"`
	NotificationRateLimitPerIntegration NotificationRateLimitMap `yaml:"alertmanager_notification_rate_limit_per_integration" json:"alertmanager_notification_rate_limit_per_integration"`

	AlertmanagerMaxConfigSizeBytes             int `yaml:"alertmanager_max_config_size_bytes" json:"alertmanager_max_config_size_bytes"`
	AlertmanagerMaxTemplatesCount              int `yaml:"alertmanager_max_templates_count" json:"alertmanager_max_templates_count"`
	AlertmanagerMaxTemplateSizeBytes           int `yaml:"alertmanager_max_template_size_bytes" json:"alertmanager_max_template_size_bytes"`
	AlertmanagerMaxDispatcherAggregationGroups int `yaml:"alertmanager_max_dispatcher_aggregation_groups" json:"alertmanager_max_dispatcher_aggregation_groups"`
	AlertmanagerMaxAlertsCount                 int `yaml:"alertmanager_max_alerts_count" json:"alertmanager_max_alerts_count"`
	AlertmanagerMaxAlertsSizeBytes             int `yaml:"alertmanager_max_alerts_size_bytes" json:"alertmanager_max_alerts_size_bytes"`
}

Limits describe all the limits for users; can be used to describe global default limits via flags, or per-user limits via yaml config.

func (*Limits) RegisterFlags 

func (l *Limits) RegisterFlags(f *flag.FlagSet)

RegisterFlags adds the flags required to config this to the given FlagSet

func (*Limits) UnmarshalJSON 

func (l *Limits) UnmarshalJSON(data []byte) error

UnmarshalJSON implements the json.Unmarshaler interface.

func (*Limits) UnmarshalYAML 

func (l *Limits) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML implements the yaml.Unmarshaler interface.

func (*Limits) Validate 

func (l *Limits) Validate(shardByAllLabels bool) error

Validate the limits config and returns an error if the validation doesn't pass

type NotificationRateLimitMap 

type NotificationRateLimitMap map[string]float64

func (NotificationRateLimitMap) MarshalYAML 

func (m NotificationRateLimitMap) MarshalYAML() (interface{}, error)

MarshalYAML implements yaml.Marshaler.

func (NotificationRateLimitMap) Set 

func (m NotificationRateLimitMap) Set(s string) error

Set implements flag.Value

func (NotificationRateLimitMap) String 

func (m NotificationRateLimitMap) String() string

String implements flag.Value

func (NotificationRateLimitMap) UnmarshalYAML 

func (m NotificationRateLimitMap) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML implements yaml.Unmarshaler.

type Overrides 

type Overrides struct {
	// contains filtered or unexported fields
}

Overrides periodically fetch a set of per-user overrides, and provides convenience functions for fetching the correct value.

func NewOverrides 

func NewOverrides(defaults Limits, tenantLimits TenantLimits) (*Overrides, error)

NewOverrides makes a new Overrides.

func (*Overrides) AcceptHASamples 

func (o *Overrides) AcceptHASamples(userID string) bool

AcceptHASamples returns whether the distributor should track and accept samples from HA replicas for this user.

func (*Overrides) AlertmanagerMaxAlertsCount 

func (o *Overrides) AlertmanagerMaxAlertsCount(userID string) int

func (*Overrides) AlertmanagerMaxAlertsSizeBytes 

func (o *Overrides) AlertmanagerMaxAlertsSizeBytes(userID string) int

func (*Overrides) AlertmanagerMaxConfigSize 

func (o *Overrides) AlertmanagerMaxConfigSize(userID string) int

func (*Overrides) AlertmanagerMaxDispatcherAggregationGroups 

func (o *Overrides) AlertmanagerMaxDispatcherAggregationGroups(userID string) int

func (*Overrides) AlertmanagerMaxTemplateSize 

func (o *Overrides) AlertmanagerMaxTemplateSize(userID string) int

func (*Overrides) AlertmanagerMaxTemplatesCount 

func (o *Overrides) AlertmanagerMaxTemplatesCount(userID string) int

func (*Overrides) AlertmanagerReceiversBlockCIDRNetworks 

func (o *Overrides) AlertmanagerReceiversBlockCIDRNetworks(user string) []flagext.CIDR

AlertmanagerReceiversBlockCIDRNetworks returns the list of network CIDRs that should be blocked in the Alertmanager receivers for the given user.

func (*Overrides) AlertmanagerReceiversBlockPrivateAddresses 

func (o *Overrides) AlertmanagerReceiversBlockPrivateAddresses(user string) bool

AlertmanagerReceiversBlockPrivateAddresses returns true if private addresses should be blocked in the Alertmanager receivers for the given user.

func (*Overrides) CardinalityLimit 

func (o *Overrides) CardinalityLimit(userID string) int

CardinalityLimit returns the maximum number of timeseries allowed in a query.

func (*Overrides) CompactorBlocksRetentionPeriod 

func (o *Overrides) CompactorBlocksRetentionPeriod(userID string) time.Duration

CompactorBlocksRetentionPeriod returns the retention period for a given user.

func (*Overrides) CreationGracePeriod 

func (o *Overrides) CreationGracePeriod(userID string) time.Duration

CreationGracePeriod is misnamed, and actually returns how far into the future we should accept samples.

func (*Overrides) DropLabels 

func (o *Overrides) DropLabels(userID string) flagext.StringSlice

DropLabels returns the list of labels to be dropped when ingesting HA samples for the user.

func (*Overrides) EnforceMetadataMetricName 

func (o *Overrides) EnforceMetadataMetricName(userID string) bool

EnforceMetadataMetricName whether to enforce the presence of a metric name on metadata.

func (*Overrides) EnforceMetricName 

func (o *Overrides) EnforceMetricName(userID string) bool

EnforceMetricName whether to enforce the presence of a metric name.

func (*Overrides) EvaluationDelay 

func (o *Overrides) EvaluationDelay(userID string) time.Duration

EvaluationDelay returns the rules evaluation delay for a given user.

func (*Overrides) HAClusterLabel 

func (o *Overrides) HAClusterLabel(userID string) string

HAClusterLabel returns the cluster label to look for when deciding whether to accept a sample from a Prometheus HA replica.

func (*Overrides) HAReplicaLabel 

func (o *Overrides) HAReplicaLabel(userID string) string

HAReplicaLabel returns the replica label to look for when deciding whether to accept a sample from a Prometheus HA replica.

func (*Overrides) IngestionBurstSize 

func (o *Overrides) IngestionBurstSize(userID string) int

IngestionBurstSize returns the burst size for ingestion rate.

func (*Overrides) IngestionRate 

func (o *Overrides) IngestionRate(userID string) float64

IngestionRate returns the limit on ingester rate (samples per second).

func (*Overrides) IngestionRateStrategy 

func (o *Overrides) IngestionRateStrategy() string

IngestionRateStrategy returns whether the ingestion rate limit should be individually applied to each distributor instance (local) or evenly shared across the cluster (global).

func (*Overrides) IngestionTenantShardSize 

func (o *Overrides) IngestionTenantShardSize(userID string) int

IngestionTenantShardSize returns the ingesters shard size for a given user.

func (*Overrides) MaxCacheFreshness 

func (o *Overrides) MaxCacheFreshness(userID string) time.Duration

MaxCacheFreshness returns the period after which results are cacheable, to prevent caching of very recent results.

func (*Overrides) MaxChunksPerQuery 

func (o *Overrides) MaxChunksPerQuery(userID string) int

func (*Overrides) MaxChunksPerQueryFromStore 

func (o *Overrides) MaxChunksPerQueryFromStore(userID string) int

MaxChunksPerQueryFromStore returns the maximum number of chunks allowed per query when fetching chunks from the long-term storage.

func (*Overrides) MaxFetchedChunkBytesPerQuery 

func (o *Overrides) MaxFetchedChunkBytesPerQuery(userID string) int

MaxFetchedChunkBytesPerQuery returns the maximum number of bytes for chunks allowed per query when fetching chunks from ingesters and blocks storage.

func (*Overrides) MaxFetchedSeriesPerQuery 

func (o *Overrides) MaxFetchedSeriesPerQuery(userID string) int

MaxFetchedSeriesPerQuery returns the maximum number of series allowed per query when fetching chunks from ingesters and blocks storage.

func (*Overrides) MaxGlobalMetadataPerMetric 

func (o *Overrides) MaxGlobalMetadataPerMetric(userID string) int

MaxGlobalMetadataPerMetric returns the maximum number of metadata allowed per metric across the cluster.

func (*Overrides) MaxGlobalMetricsWithMetadataPerUser 

func (o *Overrides) MaxGlobalMetricsWithMetadataPerUser(userID string) int

MaxGlobalMetricsWithMetadataPerUser returns the maximum number of metrics with metadata a user is allowed to store across the cluster.

func (*Overrides) MaxGlobalSeriesPerMetric 

func (o *Overrides) MaxGlobalSeriesPerMetric(userID string) int

MaxGlobalSeriesPerMetric returns the maximum number of series allowed per metric across the cluster.

func (*Overrides) MaxGlobalSeriesPerUser 

func (o *Overrides) MaxGlobalSeriesPerUser(userID string) int

MaxGlobalSeriesPerUser returns the maximum number of series a user is allowed to store across the cluster.

func (*Overrides) MaxHAClusters 

func (o *Overrides) MaxHAClusters(user string) int

MaxHAClusters returns maximum number of clusters that HA tracker will track for a user.

func (*Overrides) MaxLabelNameLength 

func (o *Overrides) MaxLabelNameLength(userID string) int

MaxLabelNameLength returns maximum length a label name can be.

func (*Overrides) MaxLabelNamesPerSeries 

func (o *Overrides) MaxLabelNamesPerSeries(userID string) int

MaxLabelNamesPerSeries returns maximum number of label/value pairs timeseries.

func (*Overrides) MaxLabelValueLength 

func (o *Overrides) MaxLabelValueLength(userID string) int

MaxLabelValueLength returns maximum length a label value can be. This also is the maximum length of a metric name.

func (*Overrides) MaxLocalMetadataPerMetric 

func (o *Overrides) MaxLocalMetadataPerMetric(userID string) int

MaxLocalMetadataPerMetric returns the maximum number of metadata allowed per metric in a single ingester.

func (*Overrides) MaxLocalMetricsWithMetadataPerUser 

func (o *Overrides) MaxLocalMetricsWithMetadataPerUser(userID string) int

MaxLocalMetricsWithMetadataPerUser returns the maximum number of metrics with metadata a user is allowed to store in a single ingester.

func (*Overrides) MaxLocalSeriesPerMetric 

func (o *Overrides) MaxLocalSeriesPerMetric(userID string) int

MaxLocalSeriesPerMetric returns the maximum number of series allowed per metric in a single ingester.

func (*Overrides) MaxLocalSeriesPerUser 

func (o *Overrides) MaxLocalSeriesPerUser(userID string) int

MaxLocalSeriesPerUser returns the maximum number of series a user is allowed to store in a single ingester.

func (*Overrides) MaxMetadataLength 

func (o *Overrides) MaxMetadataLength(userID string) int

MaxMetadataLength returns maximum length metadata can be. Metadata refers to the Metric Name, HELP and UNIT.

func (*Overrides) MaxQueriersPerUser 

func (o *Overrides) MaxQueriersPerUser(userID string) int

MaxQueriersPerUser returns the maximum number of queriers that can handle requests for this user.

func (*Overrides) MaxQueryLength 

func (o *Overrides) MaxQueryLength(userID string) time.Duration

MaxQueryLength returns the limit of the length (in time) of a query.

func (*Overrides) MaxQueryLookback 

func (o *Overrides) MaxQueryLookback(userID string) time.Duration

MaxQueryLookback returns the max lookback period of queries.

func (*Overrides) MaxQueryParallelism 

func (o *Overrides) MaxQueryParallelism(userID string) int

MaxQueryParallelism returns the limit to the number of split queries the frontend will process in parallel.

func (*Overrides) MaxSamplesPerQuery 

func (o *Overrides) MaxSamplesPerQuery(userID string) int

MaxSamplesPerQuery returns the maximum number of samples in a query (from the ingester).

func (*Overrides) MaxSeriesPerQuery 

func (o *Overrides) MaxSeriesPerQuery(userID string) int

MaxSeriesPerQuery returns the maximum number of series a query is allowed to hit.

func (*Overrides) MetricRelabelConfigs 

func (o *Overrides) MetricRelabelConfigs(userID string) []*relabel.Config

MetricRelabelConfigs returns the metric relabel configs for a given user.

func (*Overrides) MinChunkLength 

func (o *Overrides) MinChunkLength(userID string) int

MinChunkLength returns the minimum size of chunk that will be saved by ingesters

func (*Overrides) NotificationBurstSize 

func (o *Overrides) NotificationBurstSize(user string, integration string) int

func (*Overrides) NotificationRateLimit 

func (o *Overrides) NotificationRateLimit(user string, integration string) rate.Limit

func (*Overrides) RejectOldSamples 

func (o *Overrides) RejectOldSamples(userID string) bool

RejectOldSamples returns true when we should reject samples older than certain age.

func (*Overrides) RejectOldSamplesMaxAge 

func (o *Overrides) RejectOldSamplesMaxAge(userID string) time.Duration

RejectOldSamplesMaxAge returns the age at which samples should be rejected.

func (*Overrides) RulerMaxRuleGroupsPerTenant 

func (o *Overrides) RulerMaxRuleGroupsPerTenant(userID string) int

RulerMaxRuleGroupsPerTenant returns the maximum number of rule groups for a given user.

func (*Overrides) RulerMaxRulesPerRuleGroup 

func (o *Overrides) RulerMaxRulesPerRuleGroup(userID string) int

RulerMaxRulesPerRuleGroup returns the maximum number of rules per rule group for a given user.

func (*Overrides) RulerTenantShardSize 

func (o *Overrides) RulerTenantShardSize(userID string) int

RulerTenantShardSize returns shard size (number of rulers) used by this tenant when using shuffle-sharding strategy.

func (*Overrides) S3SSEKMSEncryptionContext 

func (o *Overrides) S3SSEKMSEncryptionContext(user string) string

S3SSEKMSEncryptionContext returns the per-tenant S3 KMS-SSE encryption context.

func (*Overrides) S3SSEKMSKeyID 

func (o *Overrides) S3SSEKMSKeyID(user string) string

S3SSEKMSKeyID returns the per-tenant S3 KMS-SSE key id.

func (*Overrides) S3SSEType 

func (o *Overrides) S3SSEType(user string) string

S3SSEType returns the per-tenant S3 SSE type.

func (*Overrides) StoreGatewayTenantShardSize 

func (o *Overrides) StoreGatewayTenantShardSize(userID string) int

StoreGatewayTenantShardSize returns the store-gateway shard size for a given user.

type OverridesExporter 

type OverridesExporter struct {
	// contains filtered or unexported fields
}

OverridesExporter exposes per-tenant resource limit overrides as Prometheus metrics

func NewOverridesExporter 

func NewOverridesExporter(tenantLimits TenantLimits) *OverridesExporter

NewOverridesExporter creates an OverridesExporter that reads updates to per-tenant limits using the provided function.

func (*OverridesExporter) Collect 

func (oe *OverridesExporter) Collect(ch chan<- prometheus.Metric)

func (*OverridesExporter) Describe 

func (oe *OverridesExporter) Describe(ch chan<- *prometheus.Desc)

type TenantLimits 

type TenantLimits interface {
	// ByUserID gets limits specific to a particular tenant or nil if there are none
	ByUserID(userID string) *Limits

	// AllByUserID gets a mapping of all tenant IDs and limits for that user
	AllByUserID() map[string]*Limits
}

TenantLimits exposes per-tenant limit overrides to various resource usage limits

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