DRAFT: GRPCRoute support

Makefile

@@ -17,6 +17,7 @@ TELEMETRY_ENDPOINT_INSECURE = false
 
 GW_API_VERSION = 1.0.0
 INSTALL_WEBHOOK = false
+ENABLE_EXPERIMENTAL = false
 NODE_VERSION = $(shell cat .nvmrc)
 
 # go build flags - should not be overridden by the user
@@ -193,13 +194,13 @@ install-ngf-local-build-with-plus: build-images-with-plus load-images-with-plus
 
 .PHONY: helm-install-local
 helm-install-local: ## Helm install NGF on configured kind cluster with local images. To build, load, and install with helm run make install-ngf-local-build.
-	./conformance/scripts/install-gateway.sh $(GW_API_VERSION) $(INSTALL_WEBHOOK)
-	helm install dev ./deploy/helm-chart --create-namespace --wait --set service.type=NodePort --set nginxGateway.image.repository=$(PREFIX) --set nginxGateway.image.tag=$(TAG) --set nginxGateway.image.pullPolicy=Never --set nginx.image.repository=$(NGINX_PREFIX) --set nginx.image.tag=$(TAG) --set nginx.image.pullPolicy=Never -n nginx-gateway
+	./conformance/scripts/install-gateway.sh $(GW_API_VERSION) $(INSTALL_WEBHOOK) $(ENABLE_EXPERIMENTAL)
+	helm install dev ./deploy/helm-chart --create-namespace --wait --set service.type=NodePort --set nginxGateway.image.repository=$(PREFIX) --set nginxGateway.image.tag=$(TAG) --set nginxGateway.image.pullPolicy=Never --set nginx.image.repository=$(NGINX_PREFIX) --set nginx.image.tag=$(TAG) --set nginx.image.pullPolicy=Never --set nginxGateway.gwAPIExperimentalFeatures.enable=$(ENABLE_EXPERIMENTAL) -n nginx-gateway
 
 .PHONY: helm-install-local-with-plus
 helm-install-local-with-plus: ## Helm install NGF with NGINX Plus on configured kind cluster with local images. To build, load, and install with helm run make install-ngf-local-build-with-plus.
-	./conformance/scripts/install-gateway.sh $(GW_API_VERSION) $(INSTALL_WEBHOOK)
-	helm install dev ./deploy/helm-chart --create-namespace --wait --set service.type=NodePort --set nginxGateway.image.repository=$(PREFIX) --set nginxGateway.image.tag=$(TAG) --set nginxGateway.image.pullPolicy=Never --set nginx.image.repository=$(NGINX_PLUS_PREFIX) --set nginx.image.tag=$(TAG) --set nginx.image.pullPolicy=Never --set nginx.plus=true -n nginx-gateway
+	./conformance/scripts/install-gateway.sh $(GW_API_VERSION) $(INSTALL_WEBHOOK) $(ENABLE_EXPERIMENTAL)
+	helm install dev ./deploy/helm-chart --create-namespace --wait --set service.type=NodePort --set nginxGateway.image.repository=$(PREFIX) --set nginxGateway.image.tag=$(TAG) --set nginxGateway.image.pullPolicy=Never --set nginx.image.repository=$(NGINX_PLUS_PREFIX) --set nginx.image.tag=$(TAG) --set nginx.image.pullPolicy=Never --set nginx.plus=true --set nginxGateway.gwAPIExperimentalFeatures.enable=$(ENABLE_EXPERIMENTAL) -n nginx-gateway
 
 # Debug Targets
 .PHONY: debug-build

README.md

@@ -11,7 +11,7 @@
 
 NGINX Gateway Fabric is an open-source project that provides an implementation of
 the [Gateway API](https://gateway-api.sigs.k8s.io/) using [NGINX](https://nginx.org/) as the data plane. The goal of
-this project is to implement the core Gateway APIs -- `Gateway`, `GatewayClass`, `HTTPRoute`, `TCPRoute`, `TLSRoute`,
+this project is to implement the core Gateway APIs -- `Gateway`, `GatewayClass`, `HTTPRoute`, `GRPCRoute`, `TCPRoute`, `TLSRoute`,
 and `UDPRoute` -- to configure an HTTP or TCP/UDP load balancer, reverse-proxy, or API gateway for applications running
 on Kubernetes. NGINX Gateway Fabric supports a subset of the Gateway API.
 

conformance/Makefile

@@ -18,6 +18,10 @@ INSTALL_WEBHOOK ?= false
 ENABLE_EXPERIMENTAL ?= false
 .DEFAULT_GOAL := help
 
+ifeq ($(ENABLE_EXPERIMENTAL),true)
+    SUPPORTED_FEATURES +=,GRPCExactMethodMatching,GRPCRouteListenerHostnameMatching
+endif
+
 .PHONY: help
 help: Makefile ## Display this help
 	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "; printf "Usage:\n\n    make \033[36m<target>\033[0m\n\nTargets:\n\n"}; {printf "    \033[36m%-30s\033[0m %s\n", $$1, $$2}'

deploy/helm-chart/templates/rbac.yaml

@@ -92,6 +92,7 @@ rules:
   - referencegrants
 {{- if .Values.nginxGateway.gwAPIExperimentalFeatures.enable }}
   - backendtlspolicies
+  - grpcroutes
 {{- end }}
   verbs:
   - list
@@ -104,6 +105,7 @@ rules:
   - gatewayclasses/status
 {{- if .Values.nginxGateway.gwAPIExperimentalFeatures.enable }}
   - backendtlspolicies/status
+  - grpcroutes/status
 {{- end }}
   verbs:
   - update

deploy/manifests/nginx-gateway-experimental.yaml

@@ -77,6 +77,7 @@ rules:
   - httproutes
   - referencegrants
   - backendtlspolicies
+  - grpcroutes
   verbs:
   - list
   - watch
@@ -87,6 +88,7 @@ rules:
   - gateways/status
   - gatewayclasses/status
   - backendtlspolicies/status
+  - grpcroutes/status
   verbs:
   - update
 - apiGroups:

deploy/manifests/nginx-plus-gateway-experimental.yaml

@@ -83,6 +83,7 @@ rules:
   - httproutes
   - referencegrants
   - backendtlspolicies
+  - grpcroutes
   verbs:
   - list
   - watch
@@ -93,6 +94,7 @@ rules:
   - gateways/status
   - gatewayclasses/status
   - backendtlspolicies/status
+  - grpcroutes/status
   verbs:
   - update
 - apiGroups:

go.mod

@@ -38,17 +38,17 @@ require (
 	github.com./cenkalti/backoff/v4 v4.3.0 // indirect
 	github.com./cespare/xxhash/v2 v2.2.0 // indirect
 	github.com./davecgh/go-spew v1.1.1 // indirect
-	github.com./emicklei/go-restful/v3 v3.11.0 // indirect
+	github.com./emicklei/go-restful/v3 v3.11.2 // indirect
 	github.com./evanphx/json-patch v5.7.0+incompatible // indirect
 	github.com./evanphx/json-patch/v5 v5.8.0 // indirect
 	github.com./fatih/color v1.16.0 // indirect
 	github.com./fsnotify/fsnotify v1.7.0 // indirect
 	github.com./go-logfmt/logfmt v0.5.1 // indirect
 	github.com./go-logr/stdr v1.2.2 // indirect
 	github.com./go-logr/zapr v1.3.0 // indirect
-	github.com./go-openapi/jsonpointer v0.20.0 // indirect
-	github.com./go-openapi/jsonreference v0.20.2 // indirect
-	github.com./go-openapi/swag v0.22.4 // indirect
+	github.com./go-openapi/jsonpointer v0.20.2 // indirect
+	github.com./go-openapi/jsonreference v0.20.4 // indirect
+	github.com./go-openapi/swag v0.22.7 // indirect
 	github.com./go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 // indirect
 	github.com./gobuffalo/flect v1.0.2 // indirect
 	github.com./gogo/protobuf v1.3.2 // indirect
@@ -58,7 +58,7 @@ require (
 	github.com./google/gofuzz v1.2.0 // indirect
 	github.com./google/pprof v0.0.0-20210720184732-4bb14d4b1be1 // indirect
 	github.com./google/uuid v1.6.0 // indirect
-	github.com./gorilla/websocket v1.5.0 // indirect
+	github.com./gorilla/websocket v1.5.1 // indirect
 	github.com./grpc-ecosystem/grpc-gateway/v2 v2.19.0 // indirect
 	github.com./imdario/mergo v0.3.16 // indirect
 	github.com./inconshreveable/mousetrap v1.1.0 // indirect
@@ -93,7 +93,7 @@ require (
 	golang.org/x/sys v0.18.0 // indirect
 	golang.org/x/term v0.18.0 // indirect
 	golang.org/x/text v0.14.0 // indirect
-	golang.org/x/time v0.3.0 // indirect
+	golang.org/x/time v0.5.0 // indirect
 	golang.org/x/tools v0.19.0 // indirect
 	gomodules.xyz/jsonpatch/v2 v2.4.0 // indirect
 	google.golang.org/appengine v1.6.8 // indirect
@@ -105,9 +105,9 @@ require (
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 	k8s.io/component-base v0.29.3 // indirect
-	k8s.io/klog/v2 v2.110.1 // indirect
-	k8s.io/kube-openapi v0.0.0-20231010175941-2dd684a91f00 // indirect
-	k8s.io/utils v0.0.0-20230726121419-3b25d923346b // indirect
+	k8s.io/klog/v2 v2.120.0 // indirect
+	k8s.io/kube-openapi v0.0.0-20240105020646-a37d4de58910 // indirect
+	k8s.io/utils v0.0.0-20240102154912-e7106e64919e // indirect
 	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
 	sigs.k8s.io/structured-merge-diff/v4 v4.4.1 // indirect
 )

go.sum

@@ -12,14 +12,13 @@ github.com./chzyer/logex v1.2.0/go.mod h1:9+9sk7u7pGNWYMkh0hdiL++6OeibzJccyQU4p4M
 github.com./chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
 github.com./chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
 github.com./cpuguy83/go-md2man/v2 v2.0.3/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
-github.com./creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com./davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com./davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com./davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com./dgryski/go-gk v0.0.0-20200319235926-a69029f61654 h1:XOPLOMn/zT4jIgxfxSsoXPxkrzz0FaCHwp33x5POJ+Q=
 github.com./dgryski/go-gk v0.0.0-20200319235926-a69029f61654/go.mod h1:qm+vckxRlDt0aOla0RYJJVeqHZlWfOm2UIxHaqPB46E=
-github.com./emicklei/go-restful/v3 v3.11.0 h1:rAQeMHw1c7zTmncogyy8VvRZwtkmkZ4FxERmMY4rD+g=
-github.com./emicklei/go-restful/v3 v3.11.0/go.mod h1:6n3XBCmQQb25CM2LCACGz8ukIrRry+4bhvbpWn3mrbc=
+github.com./emicklei/go-restful/v3 v3.11.2 h1:1onLa9DcsMYO9P+CXaL0dStDqQ2EHHXLiz+BtnqkLAU=
+github.com./emicklei/go-restful/v3 v3.11.2/go.mod h1:6n3XBCmQQb25CM2LCACGz8ukIrRry+4bhvbpWn3mrbc=
 github.com./evanphx/json-patch v5.7.0+incompatible h1:vgGkfT/9f8zE6tvSCe74nfpAVDQ2tG6yudJd8LBksgI=
 github.com./evanphx/json-patch v5.7.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk=
 github.com./evanphx/json-patch/v5 v5.8.0 h1:lRj6N9Nci7MvzrXuX6HFzU8XjmhPiXPlsKEy1u0KQro=
@@ -33,21 +32,18 @@ github.com./go-kit/log v0.2.1/go.mod h1:NwTd00d/i8cPZ3xOwwiv2PO5MOcx78fFErGNcVmBj
 github.com./go-logfmt/logfmt v0.5.1 h1:otpy5pqBCBZ1ng9RQ0dPu4PN7ba75Y/aA+UpowDyNVA=
 github.com./go-logfmt/logfmt v0.5.1/go.mod h1:WYhtIu8zTZfxdn5+rREduYbwxfcBr/Vr6KEVveWlfTs=
 github.com./go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
-github.com./go-logr/logr v1.3.0/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
 github.com./go-logr/logr v1.4.1 h1:pKouT5E8xu9zeFC39JXRDukb6JFQPXM5p5I91188VAQ=
 github.com./go-logr/logr v1.4.1/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
 github.com./go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
 github.com./go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
 github.com./go-logr/zapr v1.3.0 h1:XGdV8XW8zdwFiwOA2Dryh1gj2KRQyOOoNmBy4EplIcQ=
 github.com./go-logr/zapr v1.3.0/go.mod h1:YKepepNBd1u/oyhd/yQmtjVXmm9uML4IXUgMOwR8/Gg=
-github.com./go-openapi/jsonpointer v0.19.6/go.mod h1:osyAmYz/mB/C3I+WsTTSgw1ONzaLJoLCyoi6/zppojs=
-github.com./go-openapi/jsonpointer v0.20.0 h1:ESKJdU9ASRfaPNOPRx12IUyA1vn3R9GiE3KYD14BXdQ=
-github.com./go-openapi/jsonpointer v0.20.0/go.mod h1:6PGzBjjIIumbLYysB73Klnms1mwnU4G3YHOECG3CedA=
-github.com./go-openapi/jsonreference v0.20.2 h1:3sVjiK66+uXK/6oQ8xgcRKcFgQ5KXa2KvnJRumpMGbE=
-github.com./go-openapi/jsonreference v0.20.2/go.mod h1:Bl1zwGIM8/wsvqjsOQLJ/SH+En5Ap4rVB5KVcIDZG2k=
-github.com./go-openapi/swag v0.22.3/go.mod h1:UzaqsxGiab7freDnrUUra0MwWfN/q7tE4j+VcZ0yl14=
-github.com./go-openapi/swag v0.22.4 h1:QLMzNJnMGPRNDCbySlcj1x01tzU8/9LTTL9hZZZogBU=
-github.com./go-openapi/swag v0.22.4/go.mod h1:UzaqsxGiab7freDnrUUra0MwWfN/q7tE4j+VcZ0yl14=
+github.com./go-openapi/jsonpointer v0.20.2 h1:mQc3nmndL8ZBzStEo3JYF8wzmeWffDH4VbXz58sAx6Q=
+github.com./go-openapi/jsonpointer v0.20.2/go.mod h1:bHen+N0u1KEO3YlmqOjTT9Adn1RfD91Ar825/PuiRVs=
+github.com./go-openapi/jsonreference v0.20.4 h1:bKlDxQxQJgwpUSgOENiMPzCTBVuc7vTdXSSgNeAhojU=
+github.com./go-openapi/jsonreference v0.20.4/go.mod h1:5pZJyJP2MnYCpoeoMAql78cCHauHj0V9Lhc506VOpw4=
+github.com./go-openapi/swag v0.22.7 h1:JWrc1uc/P9cSomxfnsFSVWoE1FW6bNbrVPmpQYpCcR8=
+github.com./go-openapi/swag v0.22.7/go.mod h1:Gl91UqO+btAM0plGGxHqJcQZ1ZTy6jbmridBTsDy8A0=
 github.com./go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 h1:tfuBGBXKqDEevZMzYi5KSi8KkcZtzBcTgAUUtapy0OI=
 github.com./go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572/go.mod h1:9Pwr4B2jHnOSGXyyzV8ROjYa2ojvAY6HCGYYfMoC3Ls=
 github.com./gobuffalo/flect v1.0.2 h1:eqjPGSo2WmjgY2XlpGwo2NXgL3RucAKo4k4qQMNA5sA=
@@ -75,8 +71,8 @@ github.com./google/pprof v0.0.0-20210720184732-4bb14d4b1be1/go.mod h1:kpwsk12EmLe
 github.com./google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com./google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com./gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
-github.com./gorilla/websocket v1.5.0 h1:PPwGk2jz7EePpoHN/+ClbZu8SPxiqlu12wZP/3sWmnc=
-github.com./gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
+github.com./gorilla/websocket v1.5.1 h1:gmztn0JnHVt9JZquRuzLw3g4wouNVzKL15iLr/zn/QY=
+github.com./gorilla/websocket v1.5.1/go.mod h1:x3kM2JMyaluk02fnUJpQuwD2dCS5NDG2ZHL0uE0tcaY=
 github.com./grpc-ecosystem/grpc-gateway/v2 v2.19.0 h1:Wqo399gCIufwto+VfwCSvsnfGpF/w5E9CNxSwbpD6No=
 github.com./grpc-ecosystem/grpc-gateway/v2 v2.19.0/go.mod h1:qmOFXW2epJhM0qSnUUYpldc7gVz2KMQwJ/QYCDIa7XU=
 github.com./ianlancetaylor/demangle v0.0.0-20200824232613-28f6c0f3b639/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
@@ -92,11 +88,8 @@ github.com./json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnr
 github.com./json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
 github.com./kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
 github.com./kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
-github.com./kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
 github.com./kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com./kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
-github.com./kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
-github.com./kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com./kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com./kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com./mailru/easyjson v0.7.7 h1:UGYAvKxe3sBsEDzO8ZeWOSlIQfWFlxbzLZe7hwFURr0=
@@ -145,8 +138,8 @@ github.com./prometheus/common v0.52.3 h1:5f8uj6ZwHSscOGNdIQg6OiZv/ybiK2CO2q2drVZA
 github.com./prometheus/common v0.52.3/go.mod h1:BrxBKv3FWBIGXw89Mg1AeBq7FSyRzXWI3l3e7W3RN5U=
 github.com./prometheus/procfs v0.12.0 h1:jluTpSng7V9hY0O2R9DzzJHYb2xULk9VTR1V1R/k6Bo=
 github.com./prometheus/procfs v0.12.0/go.mod h1:pcuDEFsWDnvcgNzo4EEweacyhjeA9Zk3cnaOZAZEfOo=
-github.com./rogpeppe/go-internal v1.10.0 h1:TMyTOH3F/DB16zRVcYyreMH6GnZZrwQVAoYjRBZyWFQ=
-github.com./rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncjaFoBhdsK/akog=
+github.com./rogpeppe/go-internal v1.11.0 h1:cWPaGQEPrBb5/AsnsZesgZZ9yb1OQ+GOISoDNXVBh4M=
+github.com./rogpeppe/go-internal v1.11.0/go.mod h1:ddIwULY96R17DhadqLgMfk9H9tvdUzkipdSkR5nkCZA=
 github.com./rs/dnscache v0.0.0-20211102005908-e0241e321417 h1:Lt9DzQALzHoDwMBGJ6v8ObDPR0dzr2a6sXTB1Fq7IHs=
 github.com./rs/dnscache v0.0.0-20211102005908-e0241e321417/go.mod h1:qe5TWALJ8/a1Lqznoc5BDHpYX/8HU60Hm2AwRmqzxqA=
 github.com./russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
@@ -243,8 +236,8 @@ golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ=
 golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
 golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
-golang.org/x/time v0.3.0 h1:rg5rLMjNzMS1RkNLzCG38eapWhnYLFYXDXj2gOlr8j4=
-golang.org/x/time v0.3.0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
+golang.org/x/time v0.5.0 h1:o7cqy6amK/52YcAKIPlM3a+Fpj35zvRj2TP+e1xFSfk=
+golang.org/x/time v0.5.0/go.mod h1:3BpzKBy/shNhVucY/MWOyx10tF3SFh9QdLuxbVysPQM=
 golang.org/x/tools v0.0.0-20180525024113-a5b4c53f6e8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
@@ -299,12 +292,12 @@ k8s.io/client-go v0.29.3 h1:R/zaZbEAxqComZ9FHeQwOh3Y1ZUs7FaHKZdQtIc2WZg=
 k8s.io/client-go v0.29.3/go.mod h1:tkDisCvgPfiRpxGnOORfkljmS+UrW+WtXAy2fTvXJB0=
 k8s.io/component-base v0.29.3 h1:Oq9/nddUxlnrCuuR2K/jp6aflVvc0uDvxMzAWxnGzAo=
 k8s.io/component-base v0.29.3/go.mod h1:Yuj33XXjuOk2BAaHsIGHhCKZQAgYKhqIxIjIr2UXYio=
-k8s.io/klog/v2 v2.110.1 h1:U/Af64HJf7FcwMcXyKm2RPM22WZzyR7OSpYj5tg3cL0=
-k8s.io/klog/v2 v2.110.1/go.mod h1:YGtd1984u+GgbuZ7e08/yBuAfKLSO0+uR1Fhi6ExXjo=
-k8s.io/kube-openapi v0.0.0-20231010175941-2dd684a91f00 h1:aVUu9fTY98ivBPKR9Y5w/AuzbMm96cd3YHRTU83I780=
-k8s.io/kube-openapi v0.0.0-20231010175941-2dd684a91f00/go.mod h1:AsvuZPBlUDVuCdzJ87iajxtXuR9oktsTctW/R9wwouA=
-k8s.io/utils v0.0.0-20230726121419-3b25d923346b h1:sgn3ZU783SCgtaSJjpcVVlRqd6GSnlTLKgpAAttJvpI=
-k8s.io/utils v0.0.0-20230726121419-3b25d923346b/go.mod h1:OLgZIPagt7ERELqWJFomSt595RzquPNLL48iOWgYOg0=
+k8s.io/klog/v2 v2.120.0 h1:z+q5mfovBj1fKFxiRzsa2DsJLPIVMk/KFL81LMOfK+8=
+k8s.io/klog/v2 v2.120.0/go.mod h1:3Jpz1GvMt720eyJH1ckRHK1EDfpxISzJ7I9OYgaDtPE=
+k8s.io/kube-openapi v0.0.0-20240105020646-a37d4de58910 h1:1Rp/XEKP5uxPs6QrsngEHAxBjaAR78iJRiJq5Fi7LSU=
+k8s.io/kube-openapi v0.0.0-20240105020646-a37d4de58910/go.mod h1:Pa1PvrP7ACSkuX6I7KYomY6cmMA0Tx86waBhDUgoKPw=
+k8s.io/utils v0.0.0-20240102154912-e7106e64919e h1:eQ/4ljkx21sObifjzXwlPKpdGLrCfRziVtos3ofG/sQ=
+k8s.io/utils v0.0.0-20240102154912-e7106e64919e/go.mod h1:OLgZIPagt7ERELqWJFomSt595RzquPNLL48iOWgYOg0=
 pgregory.net/rapid v1.1.0 h1:CMa0sjHSru3puNx+J0MIAuiiEV4N0qj8/cMWGBBCsjw=
 pgregory.net/rapid v1.1.0/go.mod h1:PY5XlDGj0+V1FCq0o192FdRhpKHGTRIWBgqjDBTrq04=
 sigs.k8s.io/controller-runtime v0.17.3 h1:65QmN7r3FWgTxDMz9fvGnO1kbf2nu+acg9p2R9oYYYk=

internal/framework/gatewayclass/validate.go

@@ -22,6 +22,7 @@ var gatewayCRDs = map[string]apiVersion{
 	"httproutes.gateway.networking.k8s.io":         {},
 	"referencegrants.gateway.networking.k8s.io":    {},
 	"backendtlspolicies.gateway.networking.k8s.io": {},
+	"grpcroutes.gateway.networking.k8s.io":         {},
 }
 
 type apiVersion struct {

internal/framework/status/httproute.go → internal/framework/status/route.go

@@ -3,22 +3,50 @@ package status
 import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	v1 "sigs.k8s.io/gateway-api/apis/v1"
+	"sigs.k8s.io/gateway-api/apis/v1alpha2"
 )
 
 // prepareHTTPRouteStatus prepares the status for an HTTPRoute resource.
 func prepareHTTPRouteStatus(
 	oldStatus v1.HTTPRouteStatus,
-	status HTTPRouteStatus,
+	status RouteStatus,
 	gatewayCtlrName string,
 	transitionTime metav1.Time,
 ) v1.HTTPRouteStatus {
+	return v1.HTTPRouteStatus{
+		RouteStatus: v1.RouteStatus{
+			Parents: buildRouteParentStatuses(oldStatus.Parents, status, gatewayCtlrName, transitionTime),
+		},
+	}
+}
+
+// prepareGRPCRouteStatus prepares the status for a GRPCRoute resource.
+func prepareGRPCRouteStatus(
+	oldStatus v1alpha2.GRPCRouteStatus,
+	status RouteStatus,
+	gatewayCtlrName string,
+	transitionTime metav1.Time,
+) v1alpha2.GRPCRouteStatus {
+	return v1alpha2.GRPCRouteStatus{
+		RouteStatus: v1.RouteStatus{
+			Parents: buildRouteParentStatuses(oldStatus.Parents, status, gatewayCtlrName, transitionTime),
+		},
+	}
+}
+
+func buildRouteParentStatuses(
+	oldParents []v1.RouteParentStatus,
+	status RouteStatus,
+	gatewayCtlrName string,
+	transitionTime metav1.Time,
+) []v1.RouteParentStatus {
 	// maxParents is the max number of parent statuses which is the sum of all new parent statuses and all old parent
 	// statuses.
-	maxParents := len(status.ParentStatuses) + len(oldStatus.Parents)
+	maxParents := len(status.ParentStatuses) + len(oldParents)
 	parents := make([]v1.RouteParentStatus, 0, maxParents)
 
 	// keep all the parent statuses that belong to other controllers
-	for _, os := range oldStatus.Parents {
+	for _, os := range oldParents {
 		if string(os.ControllerName) != gatewayCtlrName {
 			parents = append(parents, os)
 		}
@@ -38,10 +66,5 @@ func prepareHTTPRouteStatus(
 		}
 		parents = append(parents, p)
 	}
-
-	return v1.HTTPRouteStatus{
-		RouteStatus: v1.RouteStatus{
-			Parents: parents,
-		},
-	}
+	return parents
 }

internal/framework/status/httproute_test.go → internal/framework/status/route_test.go

@@ -16,7 +16,7 @@ func TestPrepareHTTPRouteStatus(t *testing.T) {
 	gwNsName1 := types.NamespacedName{Namespace: "test", Name: "gateway-1"}
 	gwNsName2 := types.NamespacedName{Namespace: "test", Name: "gateway-2"}
 
-	status := HTTPRouteStatus{
+	status := RouteStatus{
 		ObservedGeneration: 1,
 		ParentStatuses: []ParentStatus{
 			{