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Add constants for instance/address labels and hidden prefix. #110

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Apr 21, 2015
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Add constants for instance/address labels and hidden prefix. #110

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12 changes: 12 additions & 0 deletions model/labelname.go
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Original file line number Diff line number Diff line change
Expand Up @@ -26,14 +26,26 @@ const (
// timeseries.
MetricNameLabel LabelName = "__name__"

// AddressLabel is the name of the label that holds the address of
// a scrape target.
AddressLabel LabelName = "__address__"

// ReservedLabelPrefix is a prefix which is not legal in user-supplied
// label names.
ReservedLabelPrefix = "__"

// HiddenLabelPrefix is a prefix which is legal in user-supplied label names
// but will not appear in the eventual metrics.
// Reserved labels may be excepted from that rule.
HiddenLabelPrefix = "_"

// JobLabel is the label name indicating the job from which a timeseries
// was scraped.
JobLabel LabelName = "job"

// InstanceLabel is the label name used for the instance label.
InstanceLabel LabelName = "instance"

// BucketLabel is used for the label that defines the upper bound of a
// bucket of a histogram ("le" -> "less or equal").
BucketLabel = "le"
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