feat(alerting): reduce states. Make exeuction result configurable.

ref #6444

pkg/services/alerting/eval_context.go

@@ -31,6 +31,17 @@ type EvalContext struct {
 	Ctx context.Context
 }
 
+func NewEvalContext(alertCtx context.Context, rule *Rule) *EvalContext {
+	return &EvalContext{
+		Ctx:         alertCtx,
+		StartTime:   time.Now(),
+		Rule:        rule,
+		Logs:        make([]*ResultLogEntry, 0),
+		EvalMatches: make([]*EvalMatch, 0),
+		log:         log.New("alerting.evalContext"),
+	}
+}
+
 type StateDescription struct {
 	Color string
 	Text  string
@@ -49,11 +60,6 @@ func (c *EvalContext) GetStateModel() *StateDescription {
 			Color: "#888888",
 			Text:  "No Data",
 		}
-	case m.AlertStateExecError:
-		return &StateDescription{
-			Color: "#000",
-			Text:  "Execution Error",
-		}
 	case m.AlertStateAlerting:
 		return &StateDescription{
 			Color: "#D63232",
@@ -73,25 +79,7 @@ func (c *EvalContext) ShouldSendNotification() bool {
 		return false
 	}
 
-	alertState := c.Rule.State
-
-	if c.NoDataFound {
-		if c.Rule.NoDataState == m.NoDataKeepState {
-			return false
-		}
-
-		alertState = c.Rule.NoDataState.ToAlertState()
-	}
-
-	if c.Error != nil {
-		if c.Rule.ExecutionErrorState == m.NoDataKeepState {
-			return false
-		}
-
-		alertState = c.Rule.ExecutionErrorState.ToAlertState()
-	}
-
-	return alertState != c.PrevAlertState
+	return true
 }
 
 func (a *EvalContext) GetDurationMs() float64 {
@@ -128,14 +116,3 @@ func (c *EvalContext) GetRuleUrl() (string, error) {
 		return ruleUrl, nil
 	}
 }
-
-func NewEvalContext(alertCtx context.Context, rule *Rule) *EvalContext {
-	return &EvalContext{
-		Ctx:         alertCtx,
-		StartTime:   time.Now(),
-		Rule:        rule,
-		Logs:        make([]*ResultLogEntry, 0),
-		EvalMatches: make([]*EvalMatch, 0),
-		log:         log.New("alerting.evalContext"),
-	}
-}