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Documentation
Traffic management
Request matching
Path

Path

Match the targeted path of an incoming request against specific path criteria.

For more information, see the Kubernetes Gateway API documentation.

Before you begin

  1. Follow the Get started guide to install K8sGateway, set up a gateway resource, and deploy the httpbin sample app.

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

Set up URI path matching

  1. Create an HTTPRoute resource for the match.example domain that matches incoming requests on the /status/200 path.

    kubectl apply -f- <<EOF
apiVersion: gateway.networking.k8s.io/v1beta1
kind: HTTPRoute
metadata:
  name: httpbin-match
  namespace: httpbin
spec:
  parentRefs:
    - name: http
      namespace: gloo-system
  hostnames:
    - match.example
  rules:
    - matches:
      - path:
          type: Exact
          value: /status/200
      backendRefs:
        - name: httpbin
          port: 8000
EOF

  2. Send a request to the /status/200 path of the httpbin app on the match.example domain. Verify that you get back a 200 HTTP response code.

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

    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: Sat, 04 Nov 2023 03:19:26 GMT
date: Sat, 04 Nov 2023 03:19:26 GMT
< content-length: 0
content-length: 0
< x-envoy-upstream-service-time: 1
x-envoy-upstream-service-time: 1
< server: envoy
server: envoy

  3. Send another request to the httpbin app. This time, use the /headers path. Because this path is not specified in the HTTPRoute, the request fails and a 404 HTTP response code is returned. 

    curl -vik http://$INGRESS_GW_ADDRESS:8080/headers -H "host: match.example:8080"
    curl -vik localhost:8080/headers -H "host: match.example"

    Example output:

    * Mark bundle as not supporting multiuse
< HTTP/1.1 404 Not Found
HTTP/1.1 404 Not Found
< date: Tue, 23 Apr 2024 18:52:01 GMT
date: Tue, 23 Apr 2024 18:52:01 GMT
< server: envoy
server: envoy
< content-length: 0
content-length: 0

Cleanup

You can remove the resources that you created in this guide. 
kubectl delete httproute httpbin-match -n httpbin
Header