add PILOT_ENABLE_ALPHA_GATEWAY_API and fix gateway status update (#1421)

helm/core/templates/controller-deployment.yaml

@@ -69,6 +69,10 @@ spec:
                 fieldPath: spec.serviceAccountName
           - name: DOMAIN_SUFFIX
             value: {{ .Values.global.proxy.clusterDomain }}
+          - name: PILOT_ENABLE_ALPHA_GATEWAY_API
+            value: "true"
+          - name: GATEWAY_NAME
+            value: {{ include "gateway.name" . }}
           {{- if .Values.controller.env }}
           {{- range $key, $val := .Values.controller.env }}
           - name: {{ $key }}
@@ -218,6 +222,8 @@ spec:
           {{- if .Values.global.enableGatewayAPI }}
           - name: PILOT_ENABLE_GATEWAY_API
             value: "true"
+          - name: PILOT_ENABLE_ALPHA_GATEWAY_API
+            value: "true"
           - name: PILOT_ENABLE_GATEWAY_API_STATUS
             value: "true"
           - name: PILOT_ENABLE_GATEWAY_API_DEPLOYMENT_CONTROLLER

pkg/config/envs.go

@@ -19,6 +19,7 @@ import "istio.io/pkg/env"
 var (
 	PodNamespace = env.RegisterStringVar("POD_NAMESPACE", "higress-system", "").Get()
 	PodName      = env.RegisterStringVar("POD_NAME", "", "").Get()
+	GatewayName  = env.RegisterStringVar("GATEWAY_NAME", "higress-gateway", "").Get()
 	// Revision is the value of the Istio control plane revision, e.g. "canary",
 	// and is the value used by the "istio.io/rev" label.
 	Revision = env.Register("REVISION", "", "").Get()

pkg/ingress/kube/gateway/istio/conversion.go

@@ -25,6 +25,7 @@ import (
 	"strings"
 
 	higressconfig "github.com/alibaba/higress/pkg/config"
+	"github.com/alibaba/higress/pkg/ingress/kube/util"
 	istio "istio.io/api/networking/v1alpha3"
 	"istio.io/istio/pilot/pkg/features"
 	"istio.io/istio/pilot/pkg/model"
@@ -1880,7 +1881,7 @@ func extractGatewayServices(r GatewayResources, kgw *k8s.GatewaySpec, obj config
 		if len(name) > 0 {
 			return []string{fmt.Sprintf("%s.%s.svc.%v", name, obj.Namespace, r.Domain)}, false, nil
 		}
-		return []string{}, true, nil
+		return []string{fmt.Sprintf("%s.%s.svc.%s", higressconfig.GatewayName, higressconfig.PodNamespace, util.GetDomainSuffix())}, true, nil
 	}
 	gatewayServices := []string{}
 	skippedAddresses := []string{}

pkg/ingress/kube/gateway/istio/conversion_test.go

@@ -919,7 +919,7 @@ func TestExtractGatewayServices(t *testing.T) {
 					Namespace: "default",
 				},
 			},
-			gatewayServices:   []string{},
+			gatewayServices:   []string{"higress-gateway.higress-system.svc.cluster.local"},
 			useDefaultService: true,
 		},
 		{
@@ -1039,7 +1039,7 @@ func TestExtractGatewayServices(t *testing.T) {
 					Namespace: "default",
 				},
 			},
-			gatewayServices:   []string{},
+			gatewayServices:   []string{"higress-gateway.higress-system.svc.cluster.local"},
 			useDefaultService: true,
 		},
 	}