Respect service.nativelb=false annotation when nativeLBByDefault is enabled

pkg/provider/kubernetes/ingress/fixtures/Ingress-with-native-lb-by-default-but-service-has-disabled-nativelb.yml

@@ -0,0 +1,53 @@
+kind: Ingress
+apiVersion: networking.k8s.io/v1
+metadata:
+  name: global-native-lb
+  namespace: default
+spec:
+  rules:
+  - host: traefik.tchouk
+    http:
+      paths:
+      - path: /bar
+        backend:
+          service:
+            name: native-disabled-svc
+            port:
+              name: web
+              number: 8080
+        pathType: Prefix
+
+---
+kind: Service
+apiVersion: v1
+metadata:
+  name: native-disabled-svc
+  namespace: default
+  annotations:
+    traefik.ingress.kubernetes.io/service.nativelb: "false"
+spec:
+  ports:
+    - name: web
+      port: 8080
+  clusterIP: 10.0.0.1
+  type: ClusterIP
+  externalName: traefik.wtf
+
+---
+kind: EndpointSlice
+apiVersion: discovery.k8s.io/v1
+metadata:
+  name: native-disabled-svc-abc
+  namespace: default
+  labels:
+    kubernetes.io/service-name: native-disabled-svc
+addressType: IPv4
+ports:
+  - name: web
+    port: 8080
+endpoints:
+  - addresses:
+      - 10.10.0.20
+      - 10.10.0.21
+    conditions:
+      ready: true

pkg/provider/kubernetes/ingress/kubernetes_test.go

@@ -2139,6 +2139,37 @@ func TestLoadConfigurationFromIngressesWithNativeLBByDefault(t *testing.T) {
 				},
 			},
 		},
+		{
+			desc: "Ingress with native lb by default but service has disabled nativelb",
+			expected: &dynamic.Configuration{
+				HTTP: &dynamic.HTTPConfiguration{
+					Middlewares: map[string]*dynamic.Middleware{},
+					Routers: map[string]*dynamic.Router{
+						"default-global-native-lb-traefik-tchouk-bar": {
+							Rule:    "Host(`traefik.tchouk`) && PathPrefix(`/bar`)",
+							Service: "default-native-disabled-svc-web",
+						},
+					},
+					Services: map[string]*dynamic.Service{
+						"default-native-disabled-svc-web": {
+							LoadBalancer: &dynamic.ServersLoadBalancer{
+								Strategy:           dynamic.BalancerStrategyWRR,
+								ResponseForwarding: &dynamic.ResponseForwarding{FlushInterval: dynamic.DefaultFlushInterval},
+								PassHostHeader:     pointer(true),
+								Servers: []dynamic.Server{
+									{
+										URL: "http://10.10.0.20:8080",
+									},
+									{
+										URL: "http://10.10.0.21:8080",
+									},
+								},
+							},
+						},
+					},
+				},
+			},
+		},
 	}
 
 	for _, test := range testCases {