TCPRoute doesn't attach to gateway (new Gateway API)

Networking
1

Hello. I’m trying to learn Istio with new Gateway API. It works well with HTTPRoute, but doesn’t with TCPRoute. All resources are successfully applied, but only HTTPRoute are attached to gateway and not TCPRoute.

Please help me understand if this is some kind of error in my resources or a bug in Istio

Gateway:

apiVersion: v1
kind: Namespace
metadata:
  name: global-gateway
  labels:
    istio-injection: enabled
---
apiVersion: gateway.networking.k8s.io/v1beta1
kind: Gateway
metadata:
  name: global-gateway
  namespace: global-gateway
spec:
  gatewayClassName: istio
  listeners:
  - name: global-http-gw
    port: 80
    protocol: HTTP
    allowedRoutes:
      namespaces:
        from: All
      kinds:
        - kind: HTTPRoute
  - name: postgres-tcp-gw
    port: 5432
    protocol: TCP
    allowedRoutes:
      namespaces:
        from: Selector
        selector:
          matchLabels:
            postgresql-namespace: "true"
      kinds:
        - kind: TCPRoute

TCPRoute itself:

apiVersion: v1
kind: Namespace
metadata:
  name: postgresql
  labels:
    istio-injection: enabled
    postgresql-namespace: "true"
---
apiVersion: gateway.networking.k8s.io/v1alpha2
kind: TCPRoute
metadata:
  name: postgres-route
  namespace: postgresql
spec:
  parentRefs:
    - name: global-gateway
      namespace: global-gateway
      sectionName: postgres-tcp-gw
  rules:
    - backendRefs:
        - name: postgres-svc
          port: 5432
1 Like
2

I also experienced the same case. HTTPRoute works normally, but TCPRoute does not attach.