BUG/MINOR: ingress rule default frontend

In ingress rule management loop,the frontends list is modified by certain types of rules. Instead of being transient, the modification is kept for next loops thus causing issue.

Author: ivanmatmati

controller/ingress/ingress.go

@@ -146,7 +146,8 @@ func (i *Ingress) HandleAnnotations(k store.K8s, cfg *configuration.ControllerCf
 		annList = i.resource.Annotations
 		ingressRule = true
 	}
-	frontends := []string{cfg.FrontHTTP, cfg.FrontHTTPS}
+	defaultFrontends := []string{cfg.FrontHTTP, cfg.FrontHTTPS}
+	frontends := defaultFrontends
 	for _, a := range annotations.Frontend(i.resource, &result, *cfg.MapFiles) {
 		err = a.Process(k, annList)
 		if err != nil {
@@ -169,6 +170,8 @@ func (i *Ingress) HandleAnnotations(k store.K8s, cfg *configuration.ControllerCf
 		case rules.REQ_RATELIMIT:
 			limitRule := rule.(*rules.ReqRateLimit)
 			cfg.RateLimitTables = append(cfg.RateLimitTables, limitRule.TableName)
+		default:
+			frontends = defaultFrontends
 		}
 		for _, frontend := range frontends {
 			logger.Error(cfg.HAProxyRules.AddRule(rule, ingressRule, frontend))