Make the IngressRoute kind optional

docs/content/reference/dynamic-configuration/kubernetes-crd-definition-v1.yml

@@ -57,6 +57,7 @@ spec:
                       description: |-
                         Kind defines the kind of the route.
                         Rule is the only supported kind.
+                        If not defined, defaults to Rule.
                       enum:
                       - Rule
                       type: string
@@ -280,7 +281,6 @@ spec:
                         More info: https://doc.traefik.io/traefik/v3.2/routing/routers/#rulesyntax
                       type: string
                   required:
-                  - kind
                   - match
                   type: object
                 type: array

docs/content/reference/dynamic-configuration/traefik.io_ingressroutes.yaml

@@ -57,6 +57,7 @@ spec:
                       description: |-
                         Kind defines the kind of the route.
                         Rule is the only supported kind.
+                        If not defined, defaults to Rule.
                       enum:
                       - Rule
                       type: string
@@ -280,7 +281,6 @@ spec:
                         More info: https://doc.traefik.io/traefik/v3.2/routing/routers/#rulesyntax
                       type: string
                   required:
-                  - kind
                   - match
                   type: object
                 type: array

integration/fixtures/k8s/01-traefik-crd.yml

@@ -57,6 +57,7 @@ spec:
                       description: |-
                         Kind defines the kind of the route.
                         Rule is the only supported kind.
+                        If not defined, defaults to Rule.
                       enum:
                       - Rule
                       type: string
@@ -280,7 +281,6 @@ spec:
                         More info: https://doc.traefik.io/traefik/v3.2/routing/routers/#rulesyntax
                       type: string
                   required:
-                  - kind
                   - match
                   type: object
                 type: array

pkg/provider/kubernetes/crd/kubernetes_http.go

@@ -60,7 +60,7 @@ func (p *Provider) loadIngressRouteConfiguration(ctx context.Context, client Cli
 		}
 
 		for _, route := range ingressRoute.Spec.Routes {
-			if route.Kind != "Rule" {
+			if len(route.Kind) > 0 && route.Kind != "Rule" {
 				logger.Error().Msgf("Unsupported match kind: %s. Only \"Rule\" is supported for now.", route.Kind)
 				continue
 			}

pkg/provider/kubernetes/crd/kubernetes_test.go

@@ -3114,8 +3114,8 @@ func TestLoadIngressRoutes(t *testing.T) {
 			},
 		},
 		{
-			desc:  "Route with kind not of a rule type (empty kind) is ignored",
-			paths: []string{"services.yml", "with_wrong_rule_kind.yml"},
+			desc:  "Route with empty kind is allowed",
+			paths: []string{"services.yml", "with_empty_rule_kind.yml"},
 			expected: &dynamic.Configuration{
 				UDP: &dynamic.UDPConfiguration{
 					Routers:  map[string]*dynamic.UDPRouter{},
@@ -3129,9 +3129,33 @@ func TestLoadIngressRoutes(t *testing.T) {
 					ServersTransports: map[string]*dynamic.TCPServersTransport{},
 				},
 				HTTP: &dynamic.HTTPConfiguration{
-					Routers:           map[string]*dynamic.Router{},
+					Routers: map[string]*dynamic.Router{
+						"default-test-route-02719a68b11e915a4b23": {
+							EntryPoints: []string{"web"},
+							Service:     "default-test-route-02719a68b11e915a4b23",
+							Rule:        "/prefix",
+							Priority:    12,
+						},
+					},
 					Middlewares: map[string]*dynamic.Middleware{},
-					Services:          map[string]*dynamic.Service{},
+					Services: map[string]*dynamic.Service{
+						"default-test-route-02719a68b11e915a4b23": {
+							LoadBalancer: &dynamic.ServersLoadBalancer{
+								Servers: []dynamic.Server{
+									{
+										URL: "http://10.10.0.1:80",
+									},
+									{
+										URL: "http://10.10.0.2:80",
+									},
+								},
+								PassHostHeader: Bool(true),
+								ResponseForwarding: &dynamic.ResponseForwarding{
+									FlushInterval: ptypes.Duration(100 * time.Millisecond),
+								},
+							},
+						},
+					},
 					ServersTransports: map[string]*dynamic.ServersTransport{},
 				},
 			},

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

@@ -28,8 +28,9 @@ type Route struct {
 	Match string `json:"match"`
 	// Kind defines the kind of the route.
 	// Rule is the only supported kind.
+	// If not defined, defaults to Rule.
 	// +kubebuilder:validation:Enum=Rule
-	Kind string `json:"kind"`
+	Kind string `json:"kind,omitempty"`
 	// Priority defines the router's priority.
 	// More info: https://doc.traefik.io/traefik/v3.2/routing/routers/#priority
 	Priority int `json:"priority,omitempty"`