Add HTTPUrlRewrite Filter in Gateway API

integration/k8s_conformance_test.go

@@ -219,8 +219,6 @@ func (s *K8sConformanceSuite) TestK8sGatewayAPIConformance() {
 		SkipTests: []string{
 			tests.HTTPRouteMethodMatching.ShortName,
 			tests.HTTPRouteQueryParamMatching.ShortName,
-			tests.HTTPRouteRewriteHost.ShortName,
-			tests.HTTPRouteRewritePath.ShortName,
 		},
 	}
 

pkg/config/dynamic/middlewares.go

@@ -43,6 +43,7 @@ type Middleware struct {
 	// Gateway API HTTPRoute filters middlewares.
 	RequestHeaderModifier *RequestHeaderModifier `json:"requestHeaderModifier,omitempty" toml:"-" yaml:"-" label:"-" file:"-" kv:"-" export:"true"`
 	RequestRedirect       *RequestRedirect       `json:"requestRedirect,omitempty" toml:"-" yaml:"-" label:"-" file:"-" kv:"-" export:"true"`
+	URLRewrite            *URLRewrite            `json:"URLRewrite,omitempty" toml:"-" yaml:"-" label:"-" file:"-" kv:"-" export:"true"`
 }
 
 // +k8s:deepcopy-gen=true
@@ -703,3 +704,12 @@ type RequestRedirect struct {
 	PathPrefix *string `json:"pathPrefix,omitempty"`
 	StatusCode int     `json:"statusCode,omitempty"`
 }
+
+// +k8s:deepcopy-gen=true
+
+// URLRewrite holds the URL rewrite middleware configuration.
+type URLRewrite struct {
+	Hostname   *string `json:"hostname,omitempty"`
+	Path       *string `json:"path,omitempty"`
+	PathPrefix *string `json:"pathPrefix,omitempty"`
+}

pkg/config/dynamic/zz_generated.deepcopy.go

@@ -869,6 +869,11 @@ func (in *Middleware) DeepCopyInto(out *Middleware) {
 		*out = new(RequestRedirect)
 		(*in).DeepCopyInto(*out)
 	}
+	if in.URLRewrite != nil {
+		in, out := &in.URLRewrite, &out.URLRewrite
+		*out = new(URLRewrite)
+		(*in).DeepCopyInto(*out)
+	}
 	return
 }
 
@@ -2205,6 +2210,37 @@ func (in *UDPWeightedRoundRobin) DeepCopy() *UDPWeightedRoundRobin {
 	return out
 }
 
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *URLRewrite) DeepCopyInto(out *URLRewrite) {
+	*out = *in
+	if in.Hostname != nil {
+		in, out := &in.Hostname, &out.Hostname
+		*out = new(string)
+		**out = **in
+	}
+	if in.Path != nil {
+		in, out := &in.Path, &out.Path
+		*out = new(string)
+		**out = **in
+	}
+	if in.PathPrefix != nil {
+		in, out := &in.PathPrefix, &out.PathPrefix
+		*out = new(string)
+		**out = **in
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new URLRewrite.
+func (in *URLRewrite) DeepCopy() *URLRewrite {
+	if in == nil {
+		return nil
+	}
+	out := new(URLRewrite)
+	in.DeepCopyInto(out)
+	return out
+}
+
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
 func (in Users) DeepCopyInto(out *Users) {
 	{

pkg/middlewares/gatewayapi/headermodifier/request_header_modifier.go

@@ -22,7 +22,7 @@ type requestHeaderModifier struct {
 }
 
 // NewRequestHeaderModifier creates a new request header modifier middleware.
-func NewRequestHeaderModifier(ctx context.Context, next http.Handler, config dynamic.RequestHeaderModifier, name string) (http.Handler, error) {
+func NewRequestHeaderModifier(ctx context.Context, next http.Handler, config dynamic.RequestHeaderModifier, name string) http.Handler {
 	logger := middlewares.GetLogger(ctx, name, typeName)
 	logger.Debug().Msg("Creating middleware")
 
@@ -32,7 +32,7 @@ func NewRequestHeaderModifier(ctx context.Context, next http.Handler, config dyn
 		set:    config.Set,
 		add:    config.Add,
 		remove: config.Remove,
-	}, nil
+	}
 }
 
 func (r *requestHeaderModifier) GetTracingInformation() (string, string, trace.SpanKind) {

pkg/middlewares/gatewayapi/headermodifier/request_header_modifier_test.go

@@ -7,7 +7,6 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
 	"github.com/traefik/traefik/v3/pkg/config/dynamic"
 	"github.com/traefik/traefik/v3/pkg/testhelpers"
 )
@@ -104,8 +103,7 @@ func TestRequestHeaderModifier(t *testing.T) {
 				gotHeaders = r.Header
 			})
 
-			handler, err := NewRequestHeaderModifier(context.Background(), next, test.config, "foo-request-header-modifier")
-			require.NoError(t, err)
+			handler := NewRequestHeaderModifier(context.Background(), next, test.config, "foo-request-header-modifier")
 
 			req := testhelpers.MustNewRequest(http.MethodGet, "http://localhost", nil)
 			if test.requestHeaders != nil {

pkg/middlewares/gatewayapi/redirect/request_redirect.go

@@ -18,8 +18,9 @@ const (
 )
 
 type redirect struct {
-	name       string
-	next       http.Handler
+	name string
+	next http.Handler
+
 	scheme     *string
 	hostname   *string
 	port       *string

pkg/middlewares/gatewayapi/redirect/request_redirect_test.go

@@ -2,7 +2,6 @@ package redirect
 
 import (
 	"context"
-	"crypto/tls"
 	"net/http"
 	"net/http/httptest"
 	"testing"
@@ -15,15 +14,12 @@ import (
 
 func TestRequestRedirectHandler(t *testing.T) {
 	testCases := []struct {
-		desc           string
-		config         dynamic.RequestRedirect
-		method         string
-		url            string
-		headers        map[string]string
-		secured        bool
-		expectedURL    string
-		expectedStatus int
-		errorExpected  bool
+		desc       string
+		config     dynamic.RequestRedirect
+		url        string
+		wantURL    string
+		wantStatus int
+		wantErr    bool
 	}{
 		{
 			desc: "wrong status code",
@@ -31,44 +27,44 @@ func TestRequestRedirectHandler(t *testing.T) {
 				Path:       ptr.To("/baz"),
 				StatusCode: http.StatusOK,
 			},
-			url:           "http://foo.com:80/foo/bar",
-			errorExpected: true,
+			url:     "http://foo.com:80/foo/bar",
+			wantErr: true,
 		},
 		{
 			desc: "replace path",
 			config: dynamic.RequestRedirect{
 				Path: ptr.To("/baz"),
 			},
-			url:            "http://foo.com:80/foo/bar",
-			expectedURL:    "http://foo.com:80/baz",
-			expectedStatus: http.StatusFound,
+			url:        "http://foo.com:80/foo/bar",
+			wantURL:    "http://foo.com:80/baz",
+			wantStatus: http.StatusFound,
 		},
 		{
 			desc: "replace path without trailing slash",
 			config: dynamic.RequestRedirect{
 				Path: ptr.To("/baz"),
 			},
-			url:            "http://foo.com:80/foo/bar/",
-			expectedURL:    "http://foo.com:80/baz",
-			expectedStatus: http.StatusFound,
+			url:        "http://foo.com:80/foo/bar/",
+			wantURL:    "http://foo.com:80/baz",
+			wantStatus: http.StatusFound,
 		},
 		{
 			desc: "replace path with trailing slash",
 			config: dynamic.RequestRedirect{
 				Path: ptr.To("/baz/"),
 			},
-			url:            "http://foo.com:80/foo/bar",
-			expectedURL:    "http://foo.com:80/baz/",
-			expectedStatus: http.StatusFound,
+			url:        "http://foo.com:80/foo/bar",
+			wantURL:    "http://foo.com:80/baz/",
+			wantStatus: http.StatusFound,
 		},
 		{
 			desc: "only hostname",
 			config: dynamic.RequestRedirect{
 				Hostname: ptr.To("bar.com"),
 			},
-			url:            "http://foo.com:8080/foo/",
-			expectedURL:    "http://bar.com:8080/foo/",
-			expectedStatus: http.StatusFound,
+			url:        "http://foo.com:8080/foo/",
+			wantURL:    "http://bar.com:8080/foo/",
+			wantStatus: http.StatusFound,
 		},
 		{
 			desc: "replace prefix path",
@@ -76,9 +72,9 @@ func TestRequestRedirectHandler(t *testing.T) {
 				Path:       ptr.To("/baz"),
 				PathPrefix: ptr.To("/foo"),
 			},
-			url:            "http://foo.com:80/foo/bar",
-			expectedURL:    "http://foo.com:80/baz/bar",
-			expectedStatus: http.StatusFound,
+			url:        "http://foo.com:80/foo/bar",
+			wantURL:    "http://foo.com:80/baz/bar",
+			wantStatus: http.StatusFound,
 		},
 		{
 			desc: "replace prefix path with trailing slash",
@@ -86,9 +82,9 @@ func TestRequestRedirectHandler(t *testing.T) {
 				Path:       ptr.To("/baz"),
 				PathPrefix: ptr.To("/foo"),
 			},
-			url:            "http://foo.com:80/foo/bar/",
-			expectedURL:    "http://foo.com:80/baz/bar/",
-			expectedStatus: http.StatusFound,
+			url:        "http://foo.com:80/foo/bar/",
+			wantURL:    "http://foo.com:80/baz/bar/",
+			wantStatus: http.StatusFound,
 		},
 		{
 			desc: "replace prefix path without slash prefix",
@@ -96,9 +92,9 @@ func TestRequestRedirectHandler(t *testing.T) {
 				Path:       ptr.To("baz"),
 				PathPrefix: ptr.To("/foo"),
 			},
-			url:            "http://foo.com:80/foo/bar",
-			expectedURL:    "http://foo.com:80/baz/bar",
-			expectedStatus: http.StatusFound,
+			url:        "http://foo.com:80/foo/bar",
+			wantURL:    "http://foo.com:80/baz/bar",
+			wantStatus: http.StatusFound,
 		},
 		{
 			desc: "replace prefix path without slash prefix",
@@ -106,9 +102,9 @@ func TestRequestRedirectHandler(t *testing.T) {
 				Path:       ptr.To("/baz"),
 				PathPrefix: ptr.To("/foo/"),
 			},
-			url:            "http://foo.com:80/foo/bar",
-			expectedURL:    "http://foo.com:80/baz/bar",
-			expectedStatus: http.StatusFound,
+			url:        "http://foo.com:80/foo/bar",
+			wantURL:    "http://foo.com:80/baz/bar",
+			wantStatus: http.StatusFound,
 		},
 		{
 			desc: "simple redirection",
@@ -117,9 +113,9 @@ func TestRequestRedirectHandler(t *testing.T) {
 				Hostname: ptr.To("foobar.com"),
 				Port:     ptr.To("443"),
 			},
-			url:            "http://foo.com:80",
-			expectedURL:    "https://foobar.com:443",
-			expectedStatus: http.StatusFound,
+			url:        "http://foo.com:80",
+			wantURL:    "https://foobar.com:443",
+			wantStatus: http.StatusFound,
 		},
 		{
 			desc: "HTTP to HTTPS permanent",
@@ -127,9 +123,9 @@ func TestRequestRedirectHandler(t *testing.T) {
 				Scheme:     ptr.To("https"),
 				StatusCode: http.StatusMovedPermanently,
 			},
-			url:            "http://foo",
-			expectedURL:    "https://foo",
-			expectedStatus: http.StatusMovedPermanently,
+			url:        "http://foo",
+			wantURL:    "https://foo",
+			wantStatus: http.StatusMovedPermanently,
 		},
 		{
 			desc: "HTTPS to HTTP permanent",
@@ -137,10 +133,9 @@ func TestRequestRedirectHandler(t *testing.T) {
 				Scheme:     ptr.To("http"),
 				StatusCode: http.StatusMovedPermanently,
 			},
-			secured:        true,
-			url:            "https://foo",
-			expectedURL:    "http://foo",
-			expectedStatus: http.StatusMovedPermanently,
+			url:        "https://foo",
+			wantURL:    "http://foo",
+			wantStatus: http.StatusMovedPermanently,
 		},
 		{
 			desc: "HTTP to HTTPS",
@@ -148,9 +143,9 @@ func TestRequestRedirectHandler(t *testing.T) {
 				Scheme: ptr.To("https"),
 				Port:   ptr.To("443"),
 			},
-			url:            "http://foo:80",
-			expectedURL:    "https://foo:443",
-			expectedStatus: http.StatusFound,
+			url:        "http://foo:80",
+			wantURL:    "https://foo:443",
+			wantStatus: http.StatusFound,
 		},
 		{
 			desc: "HTTP to HTTPS, with X-Forwarded-Proto",
@@ -158,12 +153,9 @@ func TestRequestRedirectHandler(t *testing.T) {
 				Scheme: ptr.To("https"),
 				Port:   ptr.To("443"),
 			},
-			url: "http://foo:80",
-			headers: map[string]string{
-				"X-Forwarded-Proto": "https",
-			},
-			expectedURL:    "https://foo:443",
-			expectedStatus: http.StatusFound,
+			url:        "http://foo:80",
+			wantURL:    "https://foo:443",
+			wantStatus: http.StatusFound,
 		},
 		{
 			desc: "HTTPS to HTTP",
@@ -171,10 +163,9 @@ func TestRequestRedirectHandler(t *testing.T) {
 				Scheme: ptr.To("http"),
 				Port:   ptr.To("80"),
 			},
-			secured:        true,
-			url:            "https://foo:443",
-			expectedURL:    "http://foo:80",
-			expectedStatus: http.StatusFound,
+			url:        "https://foo:443",
+			wantURL:    "http://foo:80",
+			wantStatus: http.StatusFound,
 		},
 		{
 			desc: "HTTP to HTTP",
@@ -182,9 +173,9 @@ func TestRequestRedirectHandler(t *testing.T) {
 				Scheme: ptr.To("http"),
 				Port:   ptr.To("88"),
 			},
-			url:            "http://foo:80",
-			expectedURL:    "http://foo:88",
-			expectedStatus: http.StatusFound,
+			url:        "http://foo:80",
+			wantURL:    "http://foo:88",
+			wantStatus: http.StatusFound,
 		},
 	}
 
@@ -193,45 +184,32 @@ func TestRequestRedirectHandler(t *testing.T) {
 			t.Parallel()
 
 			next := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {})
-			handler, err := NewRequestRedirect(context.Background(), next, test.config, "traefikTest")
 
-			if test.errorExpected {
+			handler, err := NewRequestRedirect(context.Background(), next, test.config, "traefikTest")
+			if test.wantErr {
 				require.Error(t, err)
 				require.Nil(t, handler)
-			} else {
+				return
+			}
+
+			require.NoError(t, err)
+			require.NotNil(t, handler)
+
+			recorder := httptest.NewRecorder()
+			req := httptest.NewRequest(http.MethodGet, test.url, nil)
+
+			handler.ServeHTTP(recorder, req)
+
+			assert.Equal(t, test.wantStatus, recorder.Code)
+			switch test.wantStatus {
+			case http.StatusMovedPermanently, http.StatusFound:
+				location, err := recorder.Result().Location()
 				require.NoError(t, err)
-				require.NotNil(t, handler)
 
-				recorder := httptest.NewRecorder()
-
-				method := http.MethodGet
-				if test.method != "" {
-					method = test.method
-				}
-
-				req := httptest.NewRequest(method, test.url, nil)
-				if test.secured {
-					req.TLS = &tls.ConnectionState{}
-				}
-
-				for k, v := range test.headers {
-					req.Header.Set(k, v)
-				}
-
-				req.Header.Set("X-Foo", "bar")
-				handler.ServeHTTP(recorder, req)
-
-				assert.Equal(t, test.expectedStatus, recorder.Code)
-				switch test.expectedStatus {
-				case http.StatusMovedPermanently, http.StatusFound:
-					location, err := recorder.Result().Location()
-					require.NoError(t, err)
-
-					assert.Equal(t, test.expectedURL, location.String())
-				default:
-					location, err := recorder.Result().Location()
-					require.Errorf(t, err, "Location %v", location)
-				}
+				assert.Equal(t, test.wantURL, location.String())
+			default:
+				location, err := recorder.Result().Location()
+				require.Errorf(t, err, "Location %v", location)
 			}
 		})
 	}

pkg/middlewares/gatewayapi/urlrewrite/url_rewrite.go

@@ -0,0 +1,68 @@
+package urlrewrite
+
+import (
+	"context"
+	"net/http"
+	"path"
+	"strings"
+
+	"github.com/traefik/traefik/v3/pkg/config/dynamic"
+	"github.com/traefik/traefik/v3/pkg/middlewares"
+	"go.opentelemetry.io/otel/trace"
+)
+
+const (
+	typeName = "URLRewrite"
+)
+
+type urlRewrite struct {
+	name string
+	next http.Handler
+
+	hostname   *string
+	path       *string
+	pathPrefix *string
+}
+
+// NewURLRewrite creates a URL rewrite middleware.
+func NewURLRewrite(ctx context.Context, next http.Handler, conf dynamic.URLRewrite, name string) http.Handler {
+	logger := middlewares.GetLogger(ctx, name, typeName)
+	logger.Debug().Msg("Creating middleware")
+
+	return urlRewrite{
+		name:       name,
+		next:       next,
+		hostname:   conf.Hostname,
+		path:       conf.Path,
+		pathPrefix: conf.PathPrefix,
+	}
+}
+
+func (u urlRewrite) GetTracingInformation() (string, string, trace.SpanKind) {
+	return u.name, typeName, trace.SpanKindInternal
+}
+
+func (u urlRewrite) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
+	newPath := req.URL.Path
+	if u.path != nil && u.pathPrefix == nil {
+		newPath = *u.path
+	}
+	if u.path != nil && u.pathPrefix != nil {
+		newPath = path.Join(*u.path, strings.TrimPrefix(req.URL.Path, *u.pathPrefix))
+
+		// add the trailing slash if needed, as path.Join removes trailing slashes.
+		if strings.HasSuffix(req.URL.Path, "/") && !strings.HasSuffix(newPath, "/") {
+			newPath += "/"
+		}
+	}
+
+	req.URL.Path = newPath
+	req.URL.RawPath = req.URL.EscapedPath()
+	req.RequestURI = req.URL.RequestURI()
+
+	if u.hostname != nil {
+		req.Host = *u.hostname
+	}
+
+	u.next.ServeHTTP(rw, req)
+}

pkg/middlewares/gatewayapi/urlrewrite/url_rewrite_test.go

@@ -0,0 +1,126 @@
+package urlrewrite
+
+import (
+	"context"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/traefik/traefik/v3/pkg/config/dynamic"
+	"k8s.io/utils/ptr"
+)
+
+func TestURLRewriteHandler(t *testing.T) {
+	testCases := []struct {
+		desc     string
+		config   dynamic.URLRewrite
+		url      string
+		wantURL  string
+		wantHost string
+	}{
+		{
+			desc: "replace path",
+			config: dynamic.URLRewrite{
+				Path: ptr.To("/baz"),
+			},
+			url:      "http://foo.com/foo/bar",
+			wantURL:  "http://foo.com/baz",
+			wantHost: "foo.com",
+		},
+		{
+			desc: "replace path without trailing slash",
+			config: dynamic.URLRewrite{
+				Path: ptr.To("/baz"),
+			},
+			url:      "http://foo.com/foo/bar/",
+			wantURL:  "http://foo.com/baz",
+			wantHost: "foo.com",
+		},
+		{
+			desc: "replace path with trailing slash",
+			config: dynamic.URLRewrite{
+				Path: ptr.To("/baz/"),
+			},
+			url:      "http://foo.com/foo/bar",
+			wantURL:  "http://foo.com/baz/",
+			wantHost: "foo.com",
+		},
+		{
+			desc: "only host",
+			config: dynamic.URLRewrite{
+				Hostname: ptr.To("bar.com"),
+			},
+			url:      "http://foo.com/foo/",
+			wantURL:  "http://foo.com/foo/",
+			wantHost: "bar.com",
+		},
+		{
+			desc: "host and path",
+			config: dynamic.URLRewrite{
+				Hostname: ptr.To("bar.com"),
+				Path:     ptr.To("/baz/"),
+			},
+			url:      "http://foo.com/foo/",
+			wantURL:  "http://foo.com/baz/",
+			wantHost: "bar.com",
+		},
+		{
+			desc: "replace prefix path",
+			config: dynamic.URLRewrite{
+				Path:       ptr.To("/baz"),
+				PathPrefix: ptr.To("/foo"),
+			},
+			url:      "http://foo.com/foo/bar",
+			wantURL:  "http://foo.com/baz/bar",
+			wantHost: "foo.com",
+		},
+		{
+			desc: "replace prefix path with trailing slash",
+			config: dynamic.URLRewrite{
+				Path:       ptr.To("/baz"),
+				PathPrefix: ptr.To("/foo"),
+			},
+			url:      "http://foo.com/foo/bar/",
+			wantURL:  "http://foo.com/baz/bar/",
+			wantHost: "foo.com",
+		},
+		{
+			desc: "replace prefix path without slash prefix",
+			config: dynamic.URLRewrite{
+				Path:       ptr.To("baz"),
+				PathPrefix: ptr.To("/foo"),
+			},
+			url:      "http://foo.com/foo/bar",
+			wantURL:  "http://foo.com/baz/bar",
+			wantHost: "foo.com",
+		},
+		{
+			desc: "replace prefix path without slash prefix",
+			config: dynamic.URLRewrite{
+				Path:       ptr.To("/baz"),
+				PathPrefix: ptr.To("/foo/"),
+			},
+			url:      "http://foo.com/foo/bar",
+			wantURL:  "http://foo.com/baz/bar",
+			wantHost: "foo.com",
+		},
+	}
+
+	for _, test := range testCases {
+		t.Run(test.desc, func(t *testing.T) {
+			t.Parallel()
+
+			next := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {})
+
+			handler := NewURLRewrite(context.Background(), next, test.config, "traefikTest")
+
+			recorder := httptest.NewRecorder()
+			req := httptest.NewRequest(http.MethodGet, test.url, nil)
+			handler.ServeHTTP(recorder, req)
+
+			assert.Equal(t, test.wantURL, req.URL.String())
+			assert.Equal(t, test.wantHost, req.Host)
+		})
+	}
+}

pkg/provider/kubernetes/gateway/fixtures/httproute/filter_url_rewrite_combined.yml

@@ -0,0 +1,58 @@
+---
+kind: GatewayClass
+apiVersion: gateway.networking.k8s.io/v1
+metadata:
+  name: my-gateway-class
+spec:
+  controllerName: traefik.io/gateway-controller
+
+---
+kind: Gateway
+apiVersion: gateway.networking.k8s.io/v1
+metadata:
+  name: my-gateway
+  namespace: default
+spec:
+  gatewayClassName: my-gateway-class
+  listeners: # Use GatewayClass defaults for listener definition.
+    - name: http
+      protocol: HTTP
+      port: 80
+      allowedRoutes:
+        kinds:
+          - kind: HTTPRoute
+            group: gateway.networking.k8s.io
+        namespaces:
+          from: Same
+
+---
+kind: HTTPRoute
+apiVersion: gateway.networking.k8s.io/v1
+metadata:
+  name: http-app-1
+  namespace: default
+spec:
+  parentRefs:
+    - name: my-gateway
+      kind: Gateway
+      group: gateway.networking.k8s.io
+  hostnames:
+    - "example.com"
+  rules:
+    - matches:
+      - path:
+          type: PathPrefix
+          value: /foo
+      backendRefs:
+        - name: whoami
+          port: 80
+          weight: 1
+          kind: Service
+          group: ""
+      filters:
+        - type: URLRewrite
+          urlRewrite:
+            hostname: www.foo.bar
+            path:
+              type: ReplacePrefixMatch
+              replacePrefixMatch: /xyz

pkg/provider/kubernetes/gateway/fixtures/httproute/filter_url_rewrite_fullpath.yml

@@ -0,0 +1,57 @@
+---
+kind: GatewayClass
+apiVersion: gateway.networking.k8s.io/v1
+metadata:
+  name: my-gateway-class
+spec:
+  controllerName: traefik.io/gateway-controller
+
+---
+kind: Gateway
+apiVersion: gateway.networking.k8s.io/v1
+metadata:
+  name: my-gateway
+  namespace: default
+spec:
+  gatewayClassName: my-gateway-class
+  listeners: # Use GatewayClass defaults for listener definition.
+    - name: http
+      protocol: HTTP
+      port: 80
+      allowedRoutes:
+        kinds:
+          - kind: HTTPRoute
+            group: gateway.networking.k8s.io
+        namespaces:
+          from: Same
+
+---
+kind: HTTPRoute
+apiVersion: gateway.networking.k8s.io/v1
+metadata:
+  name: http-app-1
+  namespace: default
+spec:
+  parentRefs:
+    - name: my-gateway
+      kind: Gateway
+      group: gateway.networking.k8s.io
+  hostnames:
+    - "example.com"
+  rules:
+    - matches:
+      - path:
+          type: PathPrefix
+          value: /foo
+      backendRefs:
+        - name: whoami
+          port: 80
+          weight: 1
+          kind: Service
+          group: ""
+      filters:
+        - type: URLRewrite
+          urlRewrite:
+            path:
+              type: ReplaceFullPath
+              replaceFullPath: /bar

pkg/provider/kubernetes/gateway/fixtures/httproute/filter_url_rewrite_hostname.yml

@@ -0,0 +1,55 @@
+---
+kind: GatewayClass
+apiVersion: gateway.networking.k8s.io/v1
+metadata:
+  name: my-gateway-class
+spec:
+  controllerName: traefik.io/gateway-controller
+
+---
+kind: Gateway
+apiVersion: gateway.networking.k8s.io/v1
+metadata:
+  name: my-gateway
+  namespace: default
+spec:
+  gatewayClassName: my-gateway-class
+  listeners: # Use GatewayClass defaults for listener definition.
+    - name: http
+      protocol: HTTP
+      port: 80
+      allowedRoutes:
+        kinds:
+          - kind: HTTPRoute
+            group: gateway.networking.k8s.io
+        namespaces:
+          from: Same
+
+---
+kind: HTTPRoute
+apiVersion: gateway.networking.k8s.io/v1
+metadata:
+  name: http-app-1
+  namespace: default
+spec:
+  parentRefs:
+    - name: my-gateway
+      kind: Gateway
+      group: gateway.networking.k8s.io
+  hostnames:
+    - "example.com"
+  rules:
+    - matches:
+      - path:
+          type: PathPrefix
+          value: /foo
+      backendRefs:
+        - name: whoami
+          port: 80
+          weight: 1
+          kind: Service
+          group: ""
+      filters:
+        - type: URLRewrite
+          urlRewrite:
+            hostname: www.foo.bar

pkg/provider/kubernetes/gateway/httproute.go

@@ -301,15 +301,19 @@ func (p *Provider) loadHTTPBackendRef(namespace string, backendRef gatev1.HTTPBa
 }
 
 func (p *Provider) loadMiddlewares(conf *dynamic.Configuration, namespace, routerName string, filters []gatev1.HTTPRouteFilter, pathMatch *gatev1.HTTPPathMatch) ([]string, error) {
+	pm := ptr.Deref(pathMatch, gatev1.HTTPPathMatch{
+		Type:  ptr.To(gatev1.PathMatchPathPrefix),
+		Value: ptr.To("/"),
+	})
+
 	middlewares := make(map[string]*dynamic.Middleware)
 	for i, filter := range filters {
+		name := fmt.Sprintf("%s-%s-%d", routerName, strings.ToLower(string(filter.Type)), i)
 		switch filter.Type {
 		case gatev1.HTTPRouteFilterRequestRedirect:
-			name := fmt.Sprintf("%s-%s-%d", routerName, strings.ToLower(string(filter.Type)), i)
-			middlewares[name] = createRequestRedirect(filter.RequestRedirect, pathMatch)
+			middlewares[name] = createRequestRedirect(filter.RequestRedirect, pm)
 
 		case gatev1.HTTPRouteFilterRequestHeaderModifier:
-			name := fmt.Sprintf("%s-%s-%d", routerName, strings.ToLower(string(filter.Type)), i)
 			middlewares[name] = createRequestHeaderModifier(filter.RequestHeaderModifier)
 
 		case gatev1.HTTPRouteFilterExtensionRef:
@@ -320,6 +324,14 @@ func (p *Provider) loadMiddlewares(conf *dynamic.Configuration, namespace, route
 
 			middlewares[name] = middleware
 
+		case gatev1.HTTPRouteFilterURLRewrite:
+			var err error
+			middleware, err := createURLRewrite(filter.URLRewrite, pm)
+			if err != nil {
+				return nil, fmt.Errorf("invalid filter %s: %w", filter.Type, err)
+			}
+			middlewares[name] = middleware
+
 		default:
 			// As per the spec: https://gateway-api.sigs.k8s.io/api-types/httproute/#filters-optional
 			// In all cases where incompatible or unsupported filters are
@@ -560,7 +572,7 @@ func createRequestHeaderModifier(filter *gatev1.HTTPHeaderFilter) *dynamic.Middl
 	}
 }
 
-func createRequestRedirect(filter *gatev1.HTTPRequestRedirectFilter, pathMatch *gatev1.HTTPPathMatch) *dynamic.Middleware {
+func createRequestRedirect(filter *gatev1.HTTPRequestRedirectFilter, pathMatch gatev1.HTTPPathMatch) *dynamic.Middleware {
 	var hostname *string
 	if filter.Hostname != nil {
 		hostname = ptr.To(string(*filter.Hostname))
@@ -599,6 +611,37 @@ func createRequestRedirect(filter *gatev1.HTTPRequestRedirectFilter, pathMatch *
 	}
 }
 
+func createURLRewrite(filter *gatev1.HTTPURLRewriteFilter, pathMatch gatev1.HTTPPathMatch) (*dynamic.Middleware, error) {
+	if filter.Path == nil && filter.Hostname == nil {
+		return nil, errors.New("empty configuration")
+	}
+
+	var host *string
+	if filter.Hostname != nil {
+		host = ptr.To(string(*filter.Hostname))
+	}
+
+	var path *string
+	var pathPrefix *string
+	if filter.Path != nil {
+		switch filter.Path.Type {
+		case gatev1.FullPathHTTPPathModifier:
+			path = filter.Path.ReplaceFullPath
+		case gatev1.PrefixMatchHTTPPathModifier:
+			path = filter.Path.ReplacePrefixMatch
+			pathPrefix = pathMatch.Value
+		}
+	}
+
+	return &dynamic.Middleware{
+		URLRewrite: &dynamic.URLRewrite{
+			Hostname:   host,
+			Path:       path,
+			PathPrefix: pathPrefix,
+		},
+	}, nil
+}
+
 func getProtocol(portSpec corev1.ServicePort) string {
 	protocol := "http"
 	if portSpec.Port == 443 || strings.HasPrefix(portSpec.Name, "https") {

pkg/provider/kubernetes/gateway/kubernetes_test.go

@@ -1734,6 +1734,212 @@ func TestLoadHTTPRoutes(t *testing.T) {
 				TLS: &dynamic.TLSConfiguration{},
 			},
 		},
+		{
+			desc:  "Simple HTTPRoute URL rewrite FullPath",
+			paths: []string{"services.yml", "httproute/filter_url_rewrite_fullpath.yml"},
+			entryPoints: map[string]Entrypoint{"web": {
+				Address: ":80",
+			}},
+			expected: &dynamic.Configuration{
+				UDP: &dynamic.UDPConfiguration{
+					Routers:  map[string]*dynamic.UDPRouter{},
+					Services: map[string]*dynamic.UDPService{},
+				},
+				TCP: &dynamic.TCPConfiguration{
+					Routers:           map[string]*dynamic.TCPRouter{},
+					Middlewares:       map[string]*dynamic.TCPMiddleware{},
+					Services:          map[string]*dynamic.TCPService{},
+					ServersTransports: map[string]*dynamic.TCPServersTransport{},
+				},
+				HTTP: &dynamic.HTTPConfiguration{
+					Routers: map[string]*dynamic.Router{
+						"default-http-app-1-my-gateway-web-0-7f90cf546b15efadf2f8": {
+							EntryPoints: []string{"web"},
+							Service:     "default-http-app-1-my-gateway-web-0-wrr",
+							Rule:        "Host(`example.com`) && (Path(`/foo`) || PathPrefix(`/foo/`))",
+							RuleSyntax:  "v3",
+							Priority:    10412,
+							Middlewares: []string{"default-http-app-1-my-gateway-web-0-7f90cf546b15efadf2f8-urlrewrite-0"},
+						},
+					},
+					Middlewares: map[string]*dynamic.Middleware{
+						"default-http-app-1-my-gateway-web-0-7f90cf546b15efadf2f8-urlrewrite-0": {
+							URLRewrite: &dynamic.URLRewrite{
+								Path: ptr.To("/bar"),
+							},
+						},
+					},
+					Services: map[string]*dynamic.Service{
+						"default-http-app-1-my-gateway-web-0-wrr": {
+							Weighted: &dynamic.WeightedRoundRobin{
+								Services: []dynamic.WRRService{
+									{
+										Name:   "default-whoami-80",
+										Weight: func(i int) *int { return &i }(1),
+									},
+								},
+							},
+						},
+						"default-whoami-80": {
+							LoadBalancer: &dynamic.ServersLoadBalancer{
+								Servers: []dynamic.Server{
+									{
+										URL: "http://10.10.0.1:80",
+									},
+									{
+										URL: "http://10.10.0.2:80",
+									},
+								},
+								PassHostHeader: ptr.To(true),
+								ResponseForwarding: &dynamic.ResponseForwarding{
+									FlushInterval: ptypes.Duration(100 * time.Millisecond),
+								},
+							},
+						},
+					},
+					ServersTransports: map[string]*dynamic.ServersTransport{},
+				},
+				TLS: &dynamic.TLSConfiguration{},
+			},
+		},
+		{
+			desc:  "Simple HTTPRoute URL rewrite Hostname",
+			paths: []string{"services.yml", "httproute/filter_url_rewrite_hostname.yml"},
+			entryPoints: map[string]Entrypoint{"web": {
+				Address: ":80",
+			}},
+			expected: &dynamic.Configuration{
+				UDP: &dynamic.UDPConfiguration{
+					Routers:  map[string]*dynamic.UDPRouter{},
+					Services: map[string]*dynamic.UDPService{},
+				},
+				TCP: &dynamic.TCPConfiguration{
+					Routers:           map[string]*dynamic.TCPRouter{},
+					Middlewares:       map[string]*dynamic.TCPMiddleware{},
+					Services:          map[string]*dynamic.TCPService{},
+					ServersTransports: map[string]*dynamic.TCPServersTransport{},
+				},
+				HTTP: &dynamic.HTTPConfiguration{
+					Routers: map[string]*dynamic.Router{
+						"default-http-app-1-my-gateway-web-0-7f90cf546b15efadf2f8": {
+							EntryPoints: []string{"web"},
+							Service:     "default-http-app-1-my-gateway-web-0-wrr",
+							Rule:        "Host(`example.com`) && (Path(`/foo`) || PathPrefix(`/foo/`))",
+							RuleSyntax:  "v3",
+							Priority:    10412,
+							Middlewares: []string{"default-http-app-1-my-gateway-web-0-7f90cf546b15efadf2f8-urlrewrite-0"},
+						},
+					},
+					Middlewares: map[string]*dynamic.Middleware{
+						"default-http-app-1-my-gateway-web-0-7f90cf546b15efadf2f8-urlrewrite-0": {
+							URLRewrite: &dynamic.URLRewrite{
+								Hostname: ptr.To("www.foo.bar"),
+							},
+						},
+					},
+					Services: map[string]*dynamic.Service{
+						"default-http-app-1-my-gateway-web-0-wrr": {
+							Weighted: &dynamic.WeightedRoundRobin{
+								Services: []dynamic.WRRService{
+									{
+										Name:   "default-whoami-80",
+										Weight: func(i int) *int { return &i }(1),
+									},
+								},
+							},
+						},
+						"default-whoami-80": {
+							LoadBalancer: &dynamic.ServersLoadBalancer{
+								Servers: []dynamic.Server{
+									{
+										URL: "http://10.10.0.1:80",
+									},
+									{
+										URL: "http://10.10.0.2:80",
+									},
+								},
+								PassHostHeader: ptr.To(true),
+								ResponseForwarding: &dynamic.ResponseForwarding{
+									FlushInterval: ptypes.Duration(100 * time.Millisecond),
+								},
+							},
+						},
+					},
+					ServersTransports: map[string]*dynamic.ServersTransport{},
+				},
+				TLS: &dynamic.TLSConfiguration{},
+			},
+		},
+		{
+			desc:  "Simple HTTPRoute URL rewrite Combined",
+			paths: []string{"services.yml", "httproute/filter_url_rewrite_combined.yml"},
+			entryPoints: map[string]Entrypoint{"web": {
+				Address: ":80",
+			}},
+			expected: &dynamic.Configuration{
+				UDP: &dynamic.UDPConfiguration{
+					Routers:  map[string]*dynamic.UDPRouter{},
+					Services: map[string]*dynamic.UDPService{},
+				},
+				TCP: &dynamic.TCPConfiguration{
+					Routers:           map[string]*dynamic.TCPRouter{},
+					Middlewares:       map[string]*dynamic.TCPMiddleware{},
+					Services:          map[string]*dynamic.TCPService{},
+					ServersTransports: map[string]*dynamic.TCPServersTransport{},
+				},
+				HTTP: &dynamic.HTTPConfiguration{
+					Routers: map[string]*dynamic.Router{
+						"default-http-app-1-my-gateway-web-0-7f90cf546b15efadf2f8": {
+							EntryPoints: []string{"web"},
+							Service:     "default-http-app-1-my-gateway-web-0-wrr",
+							Rule:        "Host(`example.com`) && (Path(`/foo`) || PathPrefix(`/foo/`))",
+							RuleSyntax:  "v3",
+							Priority:    10412,
+							Middlewares: []string{"default-http-app-1-my-gateway-web-0-7f90cf546b15efadf2f8-urlrewrite-0"},
+						},
+					},
+					Middlewares: map[string]*dynamic.Middleware{
+						"default-http-app-1-my-gateway-web-0-7f90cf546b15efadf2f8-urlrewrite-0": {
+							URLRewrite: &dynamic.URLRewrite{
+								Hostname:   ptr.To("www.foo.bar"),
+								Path:       ptr.To("/xyz"),
+								PathPrefix: ptr.To("/foo"),
+							},
+						},
+					},
+					Services: map[string]*dynamic.Service{
+						"default-http-app-1-my-gateway-web-0-wrr": {
+							Weighted: &dynamic.WeightedRoundRobin{
+								Services: []dynamic.WRRService{
+									{
+										Name:   "default-whoami-80",
+										Weight: func(i int) *int { return &i }(1),
+									},
+								},
+							},
+						},
+						"default-whoami-80": {
+							LoadBalancer: &dynamic.ServersLoadBalancer{
+								Servers: []dynamic.Server{
+									{
+										URL: "http://10.10.0.1:80",
+									},
+									{
+										URL: "http://10.10.0.2:80",
+									},
+								},
+								PassHostHeader: ptr.To(true),
+								ResponseForwarding: &dynamic.ResponseForwarding{
+									FlushInterval: ptypes.Duration(100 * time.Millisecond),
+								},
+							},
+						},
+					},
+					ServersTransports: map[string]*dynamic.ServersTransport{},
+				},
+				TLS: &dynamic.TLSConfiguration{},
+			},
+		},
 	}
 
 	for _, test := range testCases {

pkg/server/middleware/middlewares.go

@@ -22,6 +22,7 @@ import (
 	"github.com/traefik/traefik/v3/pkg/middlewares/customerrors"
 	"github.com/traefik/traefik/v3/pkg/middlewares/gatewayapi/headermodifier"
 	gapiredirect "github.com/traefik/traefik/v3/pkg/middlewares/gatewayapi/redirect"
+	"github.com/traefik/traefik/v3/pkg/middlewares/gatewayapi/urlrewrite"
 	"github.com/traefik/traefik/v3/pkg/middlewares/grpcweb"
 	"github.com/traefik/traefik/v3/pkg/middlewares/headers"
 	"github.com/traefik/traefik/v3/pkg/middlewares/inflightreq"
@@ -392,7 +393,7 @@ func (b *Builder) buildConstructor(ctx context.Context, middlewareName string) (
 			return nil, badConf
 		}
 		middleware = func(next http.Handler) (http.Handler, error) {
-			return headermodifier.NewRequestHeaderModifier(ctx, next, *config.RequestHeaderModifier, middlewareName)
+			return headermodifier.NewRequestHeaderModifier(ctx, next, *config.RequestHeaderModifier, middlewareName), nil
 		}
 	}
 
@@ -405,6 +406,15 @@ func (b *Builder) buildConstructor(ctx context.Context, middlewareName string) (
 		}
 	}
 
+	if config.URLRewrite != nil {
+		if middleware != nil {
+			return nil, badConf
+		}
+		middleware = func(next http.Handler) (http.Handler, error) {
+			return urlrewrite.NewURLRewrite(ctx, next, *config.URLRewrite, middlewareName), nil
+		}
+	}
+
 	if middleware == nil {
 		return nil, fmt.Errorf("invalid middleware %q configuration: invalid middleware type or middleware does not exist", middlewareName)
 	}