promrelabel

package
v0.0.1 Latest Latest
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 Go to latest Published: Oct 31, 2024 License: Apache-2.0 Imports: 20 Imported by: 0

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Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func CleanLabels 

func CleanLabels(labels []prompbmarshal.Label)

CleanLabels sets label.Name and label.Value to an empty string for all the labels.

This should help GC cleaning up label.Name and label.Value strings.

func FinalizeLabels 

func FinalizeLabels(dst, src []prompbmarshal.Label) []prompbmarshal.Label

FinalizeLabels removes labels with "__" in the beginning (except of "__name__").

func GetLabelByName 

func GetLabelByName(labels []prompbmarshal.Label, name string) *prompbmarshal.Label

GetLabelByName returns label with the given name from labels.

func GetScrapeURL 

func GetScrapeURL(labels *promutils.Labels, extraParams map[string][]string) (string, string)

GetScrapeURL makes scrape url and __address_ labels for the given labels and extraParams.

func LabelsToString 

func LabelsToString(labels []prompbmarshal.Label) string

LabelsToString returns Prometheus string representation for the given labels.

Labels in the returned string are sorted by name, while the __name__ label is put in front of {} labels.

func RelabelDebugSteps 

func RelabelDebugSteps(targetURL, targetID, format string, dss []DebugStep, metric, relabelConfigs string, err error) string

func RelabelDebugStepsHTML 

func RelabelDebugStepsHTML(targetURL, targetID string, dss []DebugStep, metric, relabelConfigs string, err error) string

func RelabelDebugStepsJSON 

func RelabelDebugStepsJSON(targetURL, targetID string, dss []DebugStep, metric, relabelConfigs string, err error) string

func SanitizeLabelName 

func SanitizeLabelName(name string) string

SanitizeLabelName replaces unsupported by Prometheus chars in label names with _.

See https://prometheus.io/docs/concepts/data_model/#metric-names-and-labels

func SanitizeMetricName 

func SanitizeMetricName(value string) string

SanitizeMetricName replaces unsupported by Prometheus chars in metric names with _.

See https://prometheus.io/docs/concepts/data_model/#metric-names-and-labels

func SortLabels 

func SortLabels(labels []prompbmarshal.Label)

SortLabels sorts labels in alphabetical order.

func SplitMetricNameToTokens 

func SplitMetricNameToTokens(name string) []string

SplitMetricNameToTokens returns tokens generated from metric name divided by unsupported Prometheus characters

See https://prometheus.io/docs/concepts/data_model/#metric-names-and-labels

func StreamRelabelDebugSteps 

func StreamRelabelDebugSteps(qw422016 *qt422016.Writer, targetURL, targetID, format string, dss []DebugStep, metric, relabelConfigs string, err error)

func StreamRelabelDebugStepsHTML 

func StreamRelabelDebugStepsHTML(qw422016 *qt422016.Writer, targetURL, targetID string, dss []DebugStep, metric, relabelConfigs string, err error)

func StreamRelabelDebugStepsJSON 

func StreamRelabelDebugStepsJSON(qw422016 *qt422016.Writer, targetURL, targetID string, dss []DebugStep, metric, relabelConfigs string, err error)

func WriteMetricRelabelDebug 

func WriteMetricRelabelDebug(w io.Writer, targetID, metric, relabelConfigs, format string, err error)

WriteMetricRelabelDebug writes /metric-relabel-debug page to w with the corresponding args.

func WriteRelabelDebugSteps 

func WriteRelabelDebugSteps(qq422016 qtio422016.Writer, targetURL, targetID, format string, dss []DebugStep, metric, relabelConfigs string, err error)

func WriteRelabelDebugStepsHTML 

func WriteRelabelDebugStepsHTML(qq422016 qtio422016.Writer, targetURL, targetID string, dss []DebugStep, metric, relabelConfigs string, err error)

func WriteRelabelDebugStepsJSON 

func WriteRelabelDebugStepsJSON(qq422016 qtio422016.Writer, targetURL, targetID string, dss []DebugStep, metric, relabelConfigs string, err error)

func WriteTargetRelabelDebug 

func WriteTargetRelabelDebug(w io.Writer, targetID, metric, relabelConfigs, format string, err error)

WriteTargetRelabelDebug writes /target-relabel-debug page to w with the corresponding args.

Types

type DebugStep 

type DebugStep struct {
	// Rule contains string representation of the rule step
	Rule string

	// In contains the input labels before the execution of the rule step
	In string

	// Out contains the output labels after the execution of the rule step
	Out string
}

DebugStep contains debug information about a single relabeling rule step

func (DebugStep) String 

func (ds DebugStep) String() string

String returns human-readable representation for ds

type IfExpression 

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

IfExpression represents PromQL-like label filters such as `metric_name{filters...}`.

It may contain either a single filter or multiple filters, which are executed with `or` operator.

Examples:

if: 'foo{bar="baz"}'

if: - 'foo{bar="baz"}' - '{x=~"y"}'

func (*IfExpression) MarshalJSON 

func (ie *IfExpression) MarshalJSON() ([]byte, error)

MarshalJSON marshals ie to JSON.

func (*IfExpression) MarshalYAML 

func (ie *IfExpression) MarshalYAML() (any, error)

MarshalYAML marshals ie to YAML

func (*IfExpression) Match 

func (ie *IfExpression) Match(labels []prompbmarshal.Label) bool

Match returns true if labels match at least a single label filter inside ie.

Match returns true for empty ie.

func (*IfExpression) Parse 

func (ie *IfExpression) Parse(s string) error

Parse parses ie from s.

func (*IfExpression) String 

func (ie *IfExpression) String() string

String returns string representation of ie.

func (*IfExpression) UnmarshalJSON 

func (ie *IfExpression) UnmarshalJSON(data []byte) error

UnmarshalJSON unmarshals ie from JSON data.

func (*IfExpression) UnmarshalYAML 

func (ie *IfExpression) UnmarshalYAML(f func(any) error) error

UnmarshalYAML unmarshals ie from YAML passed to f.

type MultiLineRegex 

type MultiLineRegex struct {
	S string
}

MultiLineRegex contains a regex, which can be split into multiple lines.

These lines are joined with "|" then. For example:

regex: - foo - bar

is equivalent to:

regex: "foo|bar"

func (*MultiLineRegex) MarshalYAML 

func (mlr *MultiLineRegex) MarshalYAML() (any, error)

MarshalYAML marshals mlr to YAML.

func (*MultiLineRegex) UnmarshalYAML 

func (mlr *MultiLineRegex) UnmarshalYAML(f func(any) error) error

UnmarshalYAML unmarshals mlr from YAML passed to f.

type ParsedConfigs 

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

ParsedConfigs represents parsed relabel configs.

func LoadRelabelConfigs 

func LoadRelabelConfigs(path string) (*ParsedConfigs, error)

LoadRelabelConfigs loads relabel configs from the given path.

func ParseRelabelConfigs 

func ParseRelabelConfigs(rcs []RelabelConfig) (*ParsedConfigs, error)

ParseRelabelConfigs parses rcs to dst.

func ParseRelabelConfigsData 

func ParseRelabelConfigsData(data []byte) (*ParsedConfigs, error)

ParseRelabelConfigsData parses relabel configs from the given data.

func (*ParsedConfigs) Apply 

func (pcs *ParsedConfigs) Apply(labels []prompbmarshal.Label, labelsOffset int) []prompbmarshal.Label

Apply applies pcs to labels starting from the labelsOffset.

This function may add additional labels after the len(labels), so make sure it doesn't corrupt in-use labels stored between len(labels) and cap(labels).

func (*ParsedConfigs) ApplyDebug 

func (pcs *ParsedConfigs) ApplyDebug(labels []prompbmarshal.Label) ([]prompbmarshal.Label, []DebugStep)

ApplyDebug applies pcs to labels in debug mode.

It returns DebugStep list - one entry per each applied relabeling step.

func (*ParsedConfigs) Len 

func (pcs *ParsedConfigs) Len() int

Len returns the number of relabel configs in pcs.

func (*ParsedConfigs) String 

func (pcs *ParsedConfigs) String() string

String returns human-readabale representation for pcs.

type RelabelConfig 

type RelabelConfig struct {
	If           *IfExpression   `yaml:"if,omitempty"`
	Action       string          `yaml:"action,omitempty"`
	SourceLabels []string        `yaml:"source_labels,flow,omitempty"`
	Separator    *string         `yaml:"separator,omitempty"`
	TargetLabel  string          `yaml:"target_label,omitempty"`
	Regex        *MultiLineRegex `yaml:"regex,omitempty"`
	Modulus      uint64          `yaml:"modulus,omitempty"`
	Replacement  *string         `yaml:"replacement,omitempty"`

	// Match is used together with Labels for `action: graphite`. For example:
	// - action: graphite
	//   match: 'foo.*.*.bar'
	//   labels:
	//     job: '$1'
	//     instance: '${2}:8080'
	Match string `yaml:"match,omitempty"`

	// Labels is used together with Match for `action: graphite`. For example:
	// - action: graphite
	//   match: 'foo.*.*.bar'
	//   labels:
	//     job: '$1'
	//     instance: '${2}:8080'
	Labels map[string]string `yaml:"labels,omitempty"`
}

RelabelConfig represents relabel config.

See https://prometheus.io/docs/prometheus/latest/configuration/configuration/#relabel_config

Source Files

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