Correct Kubernetes Ingress and IngressRoute port heuristic for choosing HTTPS

pkg/provider/kubernetes/ingress/fixtures/Ingress-with-a-basic-rule-on-one-path-with-https-(port-==-443)_endpoint.yml

@@ -8,8 +8,8 @@ subsets:
 - addresses:
   - ip: 10.10.0.1
   ports:
-  - port: 443
+  - port: 8443
 - addresses:
   - ip: 10.21.0.1
   ports:
-  - port: 443
+  - port: 8443

pkg/provider/kubernetes/ingress/fixtures/Ingress-with-a-basic-rule-on-one-path-with-https-(port-==-443)_service.yml

@@ -7,4 +7,5 @@ metadata:
 spec:
   ports:
   - port: 443
+    targetPort: 8443
   clusterIp: 10.0.0.1

pkg/provider/kubernetes/ingress/kubernetes.go

@@ -216,7 +216,7 @@ func loadService(client Client, namespace string, backend v1beta1.IngressBackend
 			}
 
 			protocol := "http"
-			if port == 443 || strings.HasPrefix(portName, "https") {
+			if portSpec.Port == 443 || strings.HasPrefix(portName, "https") {
 				protocol = "https"
 			}
 

pkg/provider/kubernetes/ingress/kubernetes_test.go

@@ -732,10 +732,10 @@ func TestLoadConfigurationFromIngresses(t *testing.T) {
 								PassHostHeader: true,
 								Servers: []dynamic.Server{
 									{
-										URL: "https://10.10.0.1:443",
+										URL: "https://10.10.0.1:8443",
 									},
 									{
-										URL: "https://10.21.0.1:443",
+										URL: "https://10.21.0.1:8443",
 									},
 								},
 							},