规则名称支持变量 (#1217)

* 规则名称支持变量

* parse rule_name

src/models/alert_cur_event.go

@@ -63,10 +63,11 @@ type AggrRule struct {
 	Value string
 }
 
-func (e *AlertCurEvent) ParseRuleNote() error {
+func (e *AlertCurEvent) ParseRule(field string) error {
-	e.RuleNote = strings.TrimSpace(e.RuleNote)
+	f := e.GetField(field)
+	f = strings.TrimSpace(f)
 
-	if e.RuleNote == "" {
+	if f == "" {
 		return nil
 	}
 
@@ -75,7 +76,7 @@ func (e *AlertCurEvent) ParseRuleNote() error {
 		"{{$value := .TriggerValue}}",
 	}
 
-	text := strings.Join(append(defs, e.RuleNote), "")
+	text := strings.Join(append(defs, f), "")
 	t, err := template.New(fmt.Sprint(e.RuleId)).Funcs(tplx.TemplateFuncMap).Parse(text)
 	if err != nil {
 		return err
@@ -87,7 +88,13 @@ func (e *AlertCurEvent) ParseRuleNote() error {
 		return err
 	}
 
-	e.RuleNote = body.String()
+	if field == "rule_name" {
+		e.RuleName = body.String()
+	}
+
+	if field == "rule_note" {
+		e.RuleNote = body.String()
+	}
 	return nil
 }
 
@@ -133,6 +140,8 @@ func (e *AlertCurEvent) GetField(field string) string {
 		return fmt.Sprint(e.RuleId)
 	case "rule_name":
 		return e.RuleName
+	case "rule_note":
+		return e.RuleNote
 	case "severity":
 		return fmt.Sprint(e.Severity)
 	case "runbook_url":

src/server/engine/consume.go

@@ -45,7 +45,11 @@ func consume(events []interface{}, sema *semaphore.Semaphore) {
 func consumeOne(event *models.AlertCurEvent) {
 	LogEvent(event, "consume")
 
-	if err := event.ParseRuleNote(); err != nil {
+	if err := event.ParseRule("rule_name"); err != nil {
+		event.RuleName = fmt.Sprintf("failed to parse rule name: %v", err)
+	}
+
+	if err := event.ParseRule("rule_note"); err != nil {
 		event.RuleNote = fmt.Sprintf("failed to parse rule note: %v", err)
 	}
 

src/server/router/router_event.go

@@ -46,7 +46,11 @@ func pushEventToQueue(c *gin.Context) {
 		return
 	}
 
-	if err := event.ParseRuleNote(); err != nil {
+	if err := event.ParseRule("rule_name"); err != nil {
+		event.RuleName = fmt.Sprintf("failed to parse rule name: %v", err)
+	}
+
+	if err := event.ParseRule("rule_note"); err != nil {
 		event.RuleNote = fmt.Sprintf("failed to parse rule note: %v", err)
 	}