Manage observability at entrypoint and router level

Co-authored-by: Kevin Pollet <pollet.kevin@gmail.com>

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

@@ -12,6 +12,10 @@ spec:
   - match: Host(`foo.com`) && PathPrefix(`/bar`)
     kind: Rule
     priority: 12
+    observability:
+      accessLogs: true
+      tracing: true
+      metrics: true
     services:
     - name: whoami
       port: 80

pkg/provider/kubernetes/crd/kubernetes_http.go

@@ -114,12 +114,13 @@ func (p *Provider) loadIngressRouteConfiguration(ctx context.Context, client Cli
 			}
 
 			r := &dynamic.Router{
-				Middlewares: mds,
-				Priority:    route.Priority,
-				RuleSyntax:  route.Syntax,
-				EntryPoints: ingressRoute.Spec.EntryPoints,
-				Rule:        route.Match,
-				Service:     serviceName,
+				Middlewares:   mds,
+				Priority:      route.Priority,
+				RuleSyntax:    route.Syntax,
+				EntryPoints:   ingressRoute.Spec.EntryPoints,
+				Rule:          route.Match,
+				Service:       serviceName,
+				Observability: route.Observability,
 			}
 
 			if ingressRoute.Spec.TLS != nil {

pkg/provider/kubernetes/crd/kubernetes_test.go

@@ -1688,6 +1688,11 @@ func TestLoadIngressRoutes(t *testing.T) {
 							Service:     "default-test-route-6b204d94623b3df4370c",
 							Rule:        "Host(`foo.com`) && PathPrefix(`/bar`)",
 							Priority:    12,
+							Observability: &dynamic.RouterObservabilityConfig{
+								AccessLogs: pointer(true),
+								Tracing:    pointer(true),
+								Metrics:    pointer(true),
+							},
 						},
 					},
 					Middlewares: map[string]*dynamic.Middleware{},

pkg/provider/kubernetes/crd/traefikio/v1alpha1/ingressroute.go

@@ -43,6 +43,9 @@ type Route struct {
 	// Middlewares defines the list of references to Middleware resources.
 	// More info: https://doc.traefik.io/traefik/v3.2/routing/providers/kubernetes-crd/#kind-middleware
 	Middlewares []MiddlewareRef `json:"middlewares,omitempty"`
+	// Observability defines the observability configuration for a router.
+	// More info: https://doc.traefik.io/traefik/v3.2/routing/routers/#observability
+	Observability *dynamic.RouterObservabilityConfig `json:"observability,omitempty"`
 }
 
 // TLS holds the TLS configuration.

pkg/provider/kubernetes/crd/traefikio/v1alpha1/zz_generated.deepcopy.go

@@ -1102,6 +1102,11 @@ func (in *Route) DeepCopyInto(out *Route) {
 		*out = make([]MiddlewareRef, len(*in))
 		copy(*out, *in)
 	}
+	if in.Observability != nil {
+		in, out := &in.Observability, &out.Observability
+		*out = new(dynamic.RouterObservabilityConfig)
+		(*in).DeepCopyInto(*out)
+	}
 	return
 }