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Introduce TSDB service (#31520)

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* Introduce TSDB service

Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>

Co-authored-by: Erik Sundell <erik.sundell87@gmail.com>
Co-authored-by: Will Browne <will.browne@grafana.com>
Co-authored-by: Torkel Ödegaard <torkel@grafana.org>
Co-authored-by: Will Browne <wbrowne@users.noreply.github.com>
Co-authored-by: Zoltán Bedi <zoltan.bedi@gmail.com>
This commit is contained in:
Arve Knudsen
2021-03-08 07:02:49 +01:00
committed by GitHub
co-authored by Erik Sundell Will Browne Torkel Ödegaard Will Browne Zoltán Bedi
parent c899bf3592
commit b79e61656a
203 changed files with 5269 additions and 4776 deletions
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pkg/services/ngalert/eval/eval.go
+8 -4
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@@ -8,6 +8,7 @@ import (
"time"
"github.com/grafana/grafana/pkg/setting"
"github.com/grafana/grafana/pkg/tsdb"
"github.com/grafana/grafana-plugin-sdk-go/backend"
"github.com/grafana/grafana-plugin-sdk-go/data"
@@ -100,7 +101,7 @@ type AlertExecCtx struct {
}
// execute runs the Condition's expressions or queries.
func (c *Condition) execute(ctx AlertExecCtx, now time.Time) (*ExecutionResults, error) {
func (c *Condition) execute(ctx AlertExecCtx, now time.Time, dataService *tsdb.Service) (*ExecutionResults, error) {
result := ExecutionResults{}
if !c.IsValid() {
return nil, fmt.Errorf("invalid conditions")
@@ -140,7 +141,10 @@ func (c *Condition) execute(ctx AlertExecCtx, now time.Time) (*ExecutionResults,
})
}
exprService := expr.Service{Cfg: &setting.Cfg{ExpressionsEnabled: ctx.ExpressionsEnabled}}
exprService := expr.Service{
Cfg: &setting.Cfg{ExpressionsEnabled: ctx.ExpressionsEnabled},
DataService: dataService,
}
pbRes, err := exprService.TransformData(ctx.Ctx, queryDataReq)
if err != nil {
return &result, err
@@ -218,13 +222,13 @@ func (evalResults Results) AsDataFrame() data.Frame {
}
// ConditionEval executes conditions and evaluates the result.
func (e *Evaluator) ConditionEval(condition *Condition, now time.Time) (Results, error) {
func (e *Evaluator) ConditionEval(condition *Condition, now time.Time, dataService *tsdb.Service) (Results, error) {
alertCtx, cancelFn := context.WithTimeout(context.Background(), alertingEvaluationTimeout)
defer cancelFn()
alertExecCtx := AlertExecCtx{OrgID: condition.OrgID, Ctx: alertCtx, ExpressionsEnabled: e.Cfg.ExpressionsEnabled}
execResult, err := condition.execute(alertExecCtx, now)
execResult, err := condition.execute(alertExecCtx, now, dataService)
if err != nil {
return nil, fmt.Errorf("failed to execute conditions: %w", err)
}