istio - gateway api

Install the required CRDS

kubectl kustomize "github.com/kubernetes-sigs/gateway-api/config/crd?ref=v0.6.1" | kubectl apply -f - 

To setup Gateway API, use the following command :-

istioctl install --set profile=minimal -y

Ensure your namespace is injectable 

kubectl label namespace default istio-injection=enabled

Run your httpbin from samples folder

kubectl apply -f samples/httpbin/httpbin.yaml

Setup your HttpRoute and Gateway for your host

Run the following command to create gateway

Run the following command to create httproutes

httproute start

httproute end

Next using curl to hit the page 

curl -s -I -HHost:httpbin.example.com "http://localhost/status/200"

Let's say we're setting for only a single hostname, then may be best the use the following yaml (removing the host name. 

apiVersion: gateway.networking.k8s.io/v1beta1

kind: Gateway

metadata:

  name: gateway

  namespace: istio-system

spec:

  gatewayClassName: istio

  listeners:

  - name: httproute

    port: 80

    protocol: HTTP

    allowedRoutes:

      namespaces:

        from: All

apiVersion: gateway.networking.k8s.io/v1beta1

kind: HTTPRoute

metadata:

  name: httpbin

spec:

  parentRefs:

  - name: httpbin-gateway

  #hostnames: ["httpbin.example.com"]

  rules:

  # - matches:

  #   - path:

  #       type: PathPrefix

  #       value: /status

  #   - path:

  #       type: PathPrefix

  #       value: /delay

    - backendRefs:

      - name: httpbin

        port: 8000