Add cross namespace verification in Kubernetes CRD

pkg/provider/kubernetes/crd/fixtures/tcp/with_tls_options_cross_namespace.yml

@@ -0,0 +1,30 @@
+apiVersion: traefik.containo.us/v1alpha1
+kind: IngressRouteTCP
+metadata:
+  name: test.route
+  namespace: default
+
+spec:
+  entryPoints:
+    - foo
+
+  routes:
+  - match: HostSNI(`foo.com`)
+    services:
+    - name: whoamitcp
+      port: 8000
+
+  tls:
+    options:
+      name: tls-options-cn
+      namespace: cross-ns
+
+---
+apiVersion: traefik.containo.us/v1alpha1
+kind: TLSOption
+metadata:
+  name: tls-options-cn
+  namespace: cross-ns
+
+spec:
+  minVersion: VersionTLS12

pkg/provider/kubernetes/crd/fixtures/with_cross_namespace.yml

@@ -33,7 +33,7 @@ spec:
         - name: whoami-svc
           namespace: cross-ns
           port: 80
-          serversTransport: test
+          serversTransport: foo-test@kubernetescrd
 
 ---
 apiVersion: traefik.containo.us/v1alpha1

pkg/provider/kubernetes/crd/fixtures/with_servers_transport.yml

@@ -142,7 +142,4 @@ spec:
         - name: whoamitls
           port: 443
           serversTransport: default-test
-        - name: whoami3
-          port: 8443
-          serversTransport: foo-test@kubernetescrd
 

pkg/provider/kubernetes/crd/fixtures/with_servers_transport_cross_namespace.yml

@@ -0,0 +1,29 @@
+apiVersion: traefik.containo.us/v1alpha1
+kind: IngressRoute
+metadata:
+  name: test.route
+  namespace: default
+
+spec:
+  entryPoints:
+    - foo
+
+  routes:
+  - match: Host(`foo.com`) && PathPrefix(`/bar`)
+    kind: Rule
+    priority: 12
+    services:
+    - name: whoami
+      port: 80
+      serversTransport: cross-ns-st-cross-ns@kubernetescrd
+
+---
+apiVersion: traefik.containo.us/v1alpha1
+kind: ServersTransport
+metadata:
+  name: st-cross-ns
+  namespace: cross-ns
+
+spec:
+  disableHTTP2: true
+

pkg/provider/kubernetes/crd/fixtures/with_tls_options_cross_namespace.yml

@@ -0,0 +1,31 @@
+apiVersion: traefik.containo.us/v1alpha1
+kind: IngressRoute
+metadata:
+  name: test.route
+  namespace: default
+
+spec:
+  entryPoints:
+    - foo
+
+  routes:
+  - match: Host(`foo.com`) && PathPrefix(`/bar`)
+    kind: Rule
+    priority: 12
+    services:
+    - name: whoami
+      port: 80
+  tls:
+    options:
+      name: tls-options-cn
+      namespace: cross-ns
+
+---
+apiVersion: traefik.containo.us/v1alpha1
+kind: TLSOption
+metadata:
+  name: tls-options-cn
+  namespace: cross-ns
+
+spec:
+  minVersion: VersionTLS12