1. Create a gateway resource with an HTTP listener.

      kubectl apply -f- <<EOF
apiVersion: gateway.networking.k8s.io/v1
kind: Gateway
metadata:
  name: my-http-gateway
  namespace: gloo-system
  labels:
    example: httpbin-mydomain
spec:
  gatewayClassName: gloo-gateway
  listeners:
  - protocol: HTTP
    port: 8080
    hostname: mydomain.com
    name: http
    allowedRoutes:
      namespaces:
        from: All
EOF
    SettingDescription
    spec.gatewayClassNameThe name of the Kubernetes gateway class that you want to use to configure the gateway. When you set up Gloo Gateway, a default gateway class is set up for you. To view the gateway class configuration, see Gateway classes and types.
    spec.listenersConfigure the listeners for this gateway. In this example, you configure an HTTP gateway that listens for incoming traffic for the mydomain.com domain on port 8080. The gateway can serve HTTP routes from any namespace.

  2. Check the status of the gateway to make sure that your configuration is accepted and no conflicts exist in your cluster.

      kubectl get gateway my-http-gateway -n gloo-system -o yaml

  3. Create an HTTPRoute resource for the httpbin app that is served by the gateway that you created.

      kubectl apply -f- <<EOF
apiVersion: gateway.networking.k8s.io/v1
kind: HTTPRoute
metadata:
  name: httpbin-mydomain
  namespace: httpbin
  labels:
    example: httpbin-mydomain
spec:
  parentRefs:
    - name: my-http-gateway
      namespace: gloo-system
  rules:
    - backendRefs:
        - name: httpbin
          port: 8000
EOF

  4. Verify that the HTTPRoute is applied successfully.

      kubectl get httproute/httpbin-mydomain -n httpbin -o yaml

  5. Get the external address of the gateway and save it in an environment variable.

      export INGRESS_GW_ADDRESS=$(kubectl get svc -n gloo-system gloo-proxy-my-http-gateway -o jsonpath="{.status.loadBalancer.ingress[0]['hostname','ip']}")
echo $INGRESS_GW_ADDRESS   
  
      kubectl port-forward deployment/gloo-proxy-my-http-gateway -n gloo-system 8080:8080

  6. Send a request to the httpbin app and verify that you get back a 200 HTTP response code.

      curl -vik http://$INGRESS_GW_ADDRESS:8080/status/200 -H "host: mydomain.com:8080" 
  
      curl -vik localhost:8080/status/200 -H "host: mydomain.com"

    Example output:

      * Mark bundle as not supporting multiuse
< HTTP/1.1 200 OK
HTTP/1.1 200 OK
< access-control-allow-credentials: true
access-control-allow-credentials: true
< access-control-allow-origin: *
access-control-allow-origin: *
< date: Fri, 03 Nov 2023 20:02:48 GMT
date: Fri, 03 Nov 2023 20:02:48 GMT
< content-length: 0
content-length: 0
< x-envoy-upstream-service-time: 1
x-envoy-upstream-service-time: 1
< server: envoy
server: envoy

  7. Optional: If you no longer need the HTTP listener, clean up the resources that you created.

      kubectl delete -A gateways,httproutes -l example=httpbin-mydomain