HTTPS redirect

For more information, see the Kubernetes Gateway API documentation.

Before you begin link

1. Follow the Get started guide to install Gloo Gateway, 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
     

Redirect HTTP traffic to HTTPS link

1. Create an HTTP route for the httpbin app that you set up as part of the Get started guide. In the following example, all HTTP requests are redirected to HTTPS, and a 301 HTTP response code is returned to the user.

     kubectl apply -f- <<EOF
   apiVersion: gateway.networking.k8s.io/v1
   kind: HTTPRoute
   metadata:
     name: httpbin-https-redirect
     namespace: httpbin
     labels:
       example: httpbin-route
   spec:
     parentRefs:
       - name: http
         namespace: gloo-system
     hostnames: 
       - redirect.example
     rules:
       - filters:
         - type: RequestRedirect
           requestRedirect:
             scheme: https
             statusCode: 301
   EOF  
     

   Setting	Description
   spec.parentRefs.name	The name and namespace of the gateway resource that serves the route. In this example, you use the gateway that you installed as part of the Get started guide.
   spec.hostnames	The hostname for which you want to apply the redirect.
   spec.rules.filters.type	The type of filter that you want to apply to incoming requests. In this example, the RequestRedirect is used.
   spec.rules.filters.requestRedirect.scheme	The type of redirect that you want to apply. The https scheme redirects all incoming traffic to HTTPS.
   spec.rules.filters.requestRedirect.statusCode	The HTTP status code that you want to return to the client in case of a redirect. For a permanent redirect, use the 301 HTTP status code.

2. Send a request to the httpbin app on the redirect.example domain. Verify that you get back a 301 HTTP response code and that your redirect location shows https://redirect.example:8080/status/200.

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

     curl -vik localhost:8080/status/200 -H "host: redirect.example"
     

   Example output:

     * Mark bundle as not supporting multiuse
   < HTTP/1.1 301 Moved Permanently
   HTTP/1.1 301 Moved Permanently
   < location: https://redirect.example:8080/status/200
   location: https://redirect.example:8080/status/200
   < date: Mon, 06 Nov 2023 01:48:12 GMT
   date: Mon, 06 Nov 2023 01:48:12 GMT
   < server: envoy
   server: envoy
   < content-length: 0
   content-length: 0
     

Cleanup link

You can optionally delete the HTTP route that you created as part of this guide.

  kubectl delete httproute httpbin-https-redirect -n httpbin