AGC gateway api example (#4076)

* AGC gateway api example

Signed-off-by: Sneha Chhabria <[email protected]>

* remove extra line

Signed-off-by: Sneha Chhabria <[email protected]>

---------

Signed-off-by: Sneha Chhabria <[email protected]>

Author: snehachhabria

ray-operator/config/samples/ray-cluster-agc-gatewayapi.yaml

@@ -0,0 +1,28 @@
+apiVersion: gateway.networking.k8s.io/v1
+kind: Gateway
+metadata:
+  name: ray-cluster-gateway
+  annotations:
+    alb.networking.azure.io/alb-namespace: alb-test-infra # namespace for alb customer resource
+    alb.networking.azure.io/alb-name: alb-test # name of alb customer resource
+spec:
+  gatewayClassName: azure-alb-external
+  listeners:
+  - name: http
+    port: 80
+    protocol: HTTP
+    allowedRoutes:
+      namespaces:
+        from: Same
+---
+apiVersion: gateway.networking.k8s.io/v1
+kind: HTTPRoute
+metadata:
+  name: ray-cluster-http-route
+spec:
+  parentRefs:
+  - name: ray-cluster-gateway
+  rules:
+  - backendRefs:
+    - name: raycluster-kuberay-head-svc # Your head pod service
+      port: 8265