istio gateway vs kubernetes gateway

Sometimes I get confuse by the gateway resource in istio and kubernetes gateway api. They do almost the same thing but not exactly the same. :D

As you can see here, the API group and short name is different


$ kubectl api-resources

NAME       SHORTNAMES   APIGROUP                       NAMESPACED   KIND
gateways   gw           networking.istio.io/v1beta1    true         Gateway
gateways   gtw          networking.k8s.io/v1beta1      true         Gateway


And another clear distinction when working with these 2 resources

# Kubernetes Gateway

$ kubectl get gtw
NAME                        CLASS
multi-cluster-gateway       gke-l7-global-external-managed-mc

$ kubectl get gateway.networking.x-k8s.io
NAME                        CLASS
multi-cluster-gateway       gke-l7-global-external-managed-mc

# Istio Gateway
$ kubectl get gw
NAME               AGE
bookinfo-gateway   64m

$ kubectl get gateway.networking.istio.io
NAME               AGE
bookinfo-gateway   64m

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