Fix configmap update

The update of the configmap with NGINX customization was not handled
properly by the Ingress Controller:
- If the user had more than one Ingress resource with TLS termination
conifgured, the Ingress Controller would crash.
- If the user had more than one Ingress resource without TLS
termination, the Ingress Controller would update the config for only
one Ingress resource.

The bug appeared in a552bd0.

This commit fixes the bug.

Author: pleshakov

internal/controller/controller.go

@@ -427,8 +427,8 @@ func (lbc *LoadBalancerController) GetManagedIngresses() ([]extensions.Ingress,
 
 func (lbc *LoadBalancerController) ingressesToIngressExes(ings []extensions.Ingress) []*nginx.IngressEx {
 	var ingExes []*nginx.IngressEx
-	for _, ing := range ings {
-		ingEx, err := lbc.createIngress(&ing)
+	for i := range ings {
+		ingEx, err := lbc.createIngress(&ings[i])
 		if err != nil {
 			continue
 		}