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35bf5bf688
* vmalert: add support for `sortByLabel` template function * vmalert: update API according to Prometheus conformance program The changes to the API, field names and URL path has been made according to the Prometheus specification for `alert_generator` https://github.com/prometheus/compliance/blob/main/alert_generator/specification.md * vmalert: fix the timestamp of the evaluated rules The timestamp used for alert's `EndsAt` was calculated before sending the notification. While the correct way is to use the timestamp taken right before rules evaluation. * vmalert: add `-datasource.queryTimeAlignment` flag The flag is supposed to provide ability to disable `time` param alignment when executing rules. By default, this flag is enabled, so it remains backward compatible. The flag was introduced to achieve better compatibility with Prometheus behaviour according to https://github.com/prometheus/compliance/blob/main/alert_generator/specification.md Signed-off-by: hagen1778 <roman@victoriametrics.com>
32 lines
980 B
Go
32 lines
980 B
Go
package main
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import (
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"context"
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"errors"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
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"time"
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)
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// Rule represents alerting or recording rule
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// that has unique ID, can be Executed and
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// updated with other Rule.
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type Rule interface {
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// ID returns unique ID that may be used for
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// identifying this Rule among others.
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ID() uint64
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// Exec executes the rule with given context
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Exec(ctx context.Context) ([]prompbmarshal.TimeSeries, error)
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// ExecRange executes the rule on the given time range
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ExecRange(ctx context.Context, start, end time.Time) ([]prompbmarshal.TimeSeries, error)
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// UpdateWith performs modification of current Rule
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// with fields of the given Rule.
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UpdateWith(Rule) error
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// ToAPI converts Rule into APIRule
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ToAPI() APIRule
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// Close performs the shutdown procedures for rule
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// such as metrics unregister
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Close()
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}
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var errDuplicate = errors.New("result contains metrics with the same labelset after applying rule labels")
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