Aleksei Sviridkin f4a000ef11 fix(gateway): pin identical allowedRoutes.kinds on port 443 listeners (cilium#45559) (#3084)
## What this PR does

Cilium collapses all listeners that share a port when their
`allowedRoutes.kinds` sets differ
([cilium#45559](https://github.com/cilium/cilium/issues/45559)). In the
default `TLSPassthroughServices` configuration both HTTPS-terminate
listeners (kinds: `[HTTPRoute]`) and TLS-passthrough listeners (kinds:
`[TLSRoute]`) land on port 443. The divergent kinds trigger the
collapse, which then drops the HTTPRoutes that were accepted by the
HTTPS listener.

**Fix (Option B — security intact):** give every port-443 listener the
same kinds set `[HTTPRoute, TLSRoute]`.

- Introduces a shared `port443Kinds` slice in `renderGateway` and
assigns it to both `httpsAllowedRoutes.Kinds` and
`passthroughAllowed.Kinds`.
- GRPCRoute / TCPRoute / UDPRoute are still excluded, so the Layer 7 VAP
(`cozystack-route-hostname-policy`) continues to gate exactly the two
expected route types. Gateway API itself rejects any HTTPRoute that
references a Passthrough `sectionName` at attach time, so the expanded
kinds on passthrough listeners add no actual attach surface.
- Adds regression test `TestReconcile_Port443ListenersShareKinds` that
reconciles a TenantGateway with both an attached HTTPRoute and a
TLS-passthrough service, then asserts every port-443 listener carries a
non-empty, identical `{HTTPRoute, TLSRoute}` kinds set.
- Updates two pre-existing tests
(`TestReconcile_TLSPassthroughListenersRendered`,
`TestReconcile_HTTPSListenersRestrictRouteKindsToHTTPRoute`) that pinned
the old single-kind behavior.

### Release note

```release-note
fix(gateway): all port-443 listeners now carry identical allowedRoutes.kinds=[HTTPRoute,TLSRoute] to prevent Cilium (cilium#45559) from collapsing HTTPS-terminate and TLS-passthrough listeners and silently dropping HTTPRoutes
```

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **Bug Fixes**
* Updated port 443 gateway listeners to use a consistent set of allowed
route types.
* HTTPS (TLS-terminate) and TLS-passthrough listeners now both allow
**HTTPRoute** and **TLSRoute**, avoiding configuration discrepancies.
* **Tests**
* Added regression coverage to verify all port 443 listeners share the
same allowed route-kind set and exclude unsupported route types.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Closes #3070
2026-06-26 18:28:37 +03:00
2025-10-08 09:43:34 +05:00
2025-04-01 18:48:14 +02:00
2024-02-08 12:04:32 +01:00
2026-03-17 02:57:52 +05:00

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