VictoriaMetrics/app/vmalert/rule.go
Nikolay 15609ee447
changes vmalert Querier with per rule querier (#1249)
* changes vmalert Querier with per rule querier
it allows to changes some parametrs based on rule setting
for instance - alert type, tenant for cluster version or event endpoint url.
2021-04-28 21:41:15 +01:00

29 lines
885 B
Go

package main
import (
"context"
"errors"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompbmarshal"
)
// Rule represents alerting or recording rule
// that has unique ID, can be Executed and
// updated with other Rule.
type Rule interface {
// Returns unique ID that may be used for
// identifying this Rule among others.
ID() uint64
// Exec executes the rule with given context
// and Querier. If returnSeries is true, Exec
// may return TimeSeries as result of execution
Exec(ctx context.Context, returnSeries bool) ([]prompbmarshal.TimeSeries, error)
// UpdateWith performs modification of current Rule
// with fields of the given Rule.
UpdateWith(Rule) error
// Close performs the shutdown procedures for rule
// such as metrics unregister
Close()
}
var errDuplicate = errors.New("result contains metrics with the same labelset after applying rule labels")