Verify HTTPRoute rule can have up to 64 matches

[kate-osborn]

Recently, a change was merged that increases the limit on the number of matches in a rule to 64 from 8. However, the total number of matches across all rules in a route remains limited to 128.

As part of this change, the CEL rules for HTTPRoute have been updated to enforce these limitations. However, we need to check that NGF can support rules with up to 64 matches.

A/C:

• Manually create an HTTPRoute with a rule with 64 matches and make sure the route is accepted and configured properly.

Note: in order to test, we will have to install the latest version of the Gateway API CRDS (ref=main)

[mpstefan]

Blocked by #2656

[salonichf5]

Verified HTTPRoute rule can have up to 64 matches with no problems or changes needed on the NGF side

Sample HTTPRoute

apiVersion: gateway.networking.k8s.io/v1beta1
kind: HTTPRoute
metadata:
  name: route
spec:
  parentRefs:
  - name: gateway
    sectionName: listener
  hostnames:
  - "cafe.example.com"
  rules:
  - matches:
    - path:
        type: PathPrefix
        value: /match-1
    - path:
        type: PathPrefix
        value: /match-2
    - path:
        type: PathPrefix
        value: /match-3
    - path:
        type: PathPrefix
        value: /match-4
    - path:
        type: PathPrefix
        value: /match-5
    - path:
        type: PathPrefix
        value: /match-6
    - path:
        type: PathPrefix
        value: /match-7
    - path:
        type: PathPrefix
        value: /match-8
    - path:
        type: PathPrefix
        value: /match-9
    - path:
        type: PathPrefix
        value: /match-10
    - path:
        type: PathPrefix
        value: /match-11
    - path:
        type: PathPrefix
        value: /match-12
    - path:
        type: PathPrefix
        value: /match-13
    - path:
        type: PathPrefix
        value: /match-14
    - path:
        type: PathPrefix
        value: /match-15
    - path:
        type: PathPrefix
        value: /match-16
    - path:
        type: PathPrefix
        value: /match-17
    - path:
        type: PathPrefix
        value: /match-18
    - path:
        type: PathPrefix
        value: /match-19
    - path:
        type: PathPrefix
        value: /match-20
    - path:
        type: PathPrefix
        value: /match-21
    - path:
        type: PathPrefix
        value: /match-22
    - path:
        type: PathPrefix
        value: /match-23
    - path:
        type: PathPrefix
        value: /match-24
    - path:
        type: PathPrefix
        value: /match-25
    - path:
        type: PathPrefix
        value: /match-26
    - path:
        type: PathPrefix
        value: /match-27
    - path:
        type: PathPrefix
        value: /match-28
    - path:
        type: PathPrefix
        value: /match-29
    - path:
        type: PathPrefix
        value: /match-30
    - path:
        type: PathPrefix
        value: /match-31
    - path:
        type: PathPrefix
        value: /match-32
    - path:
        type: PathPrefix
        value: /match-33
    - path:
        type: PathPrefix
        value: /match-34
    - path:
        type: PathPrefix
        value: /match-35
    - path:
        type: PathPrefix
        value: /match-36
    - path:
        type: PathPrefix
        value: /match-37
    - path:
        type: PathPrefix
        value: /match-38
    - path:
        type: PathPrefix
        value: /match-39
    - path:
        type: PathPrefix
        value: /match-40
    - path:
        type: PathPrefix
        value: /match-41
    - path:
        type: PathPrefix
        value: /match-42
    - path:
        type: PathPrefix
        value: /match-43
    - path:
        type: PathPrefix
        value: /match-44
    - path:
        type: PathPrefix
        value: /match-45
    - path:
        type: PathPrefix
        value: /match-46
    - path:
        type: PathPrefix
        value: /match-47
    - path:
        type: PathPrefix
        value: /match-48
    - path:
        type: PathPrefix
        value: /match-49
    - path:
        type: PathPrefix
        value: /match-50
    - path:
        type: PathPrefix
        value: /match-51
    - path:
        type: PathPrefix
        value: /match-52
    - path:
        type: PathPrefix
        value: /match-53
    - path:
        type: PathPrefix
        value: /match-54
    - path:
        type: PathPrefix
        value: /match-55
    - path:
        type: PathPrefix
        value: /match-56
    - path:
        type: PathPrefix
        value: /match-57
    - path:
        type: PathPrefix
        value: /match-58
    - path:
        type: PathPrefix
        value: /match-59
    - path:
        type: PathPrefix
        value: /match-60
    - path:
        type: PathPrefix
        value: /match-61
    - path:
        type: PathPrefix
        value: /match-62
    - path:
        type: PathPrefix
        value: /match-63
    - path:
        type: PathPrefix
        value: /match-64
    backendRefs:
    - name: backend
      port: 80

Successful curl request to one of the paths

curl -v --resolve cafe.example.com:$GW_PORT:$GW_IP http://cafe.example.com:$GW_PORT/match-1

* Added cafe.example.com:8080:127.0.0.1 to DNS cache
* Hostname cafe.example.com was found in DNS cache
*   Trying 127.0.0.1:8080...
* Connected to cafe.example.com (127.0.0.1) port 8080
> GET /match-1 HTTP/1.1
> Host: cafe.example.com:8080
> User-Agent: curl/8.4.0
> Accept: */*
>
Handling connection for 8080
< HTTP/1.1 200 OK
< Server: nginx
< Date: Thu, 17 Oct 2024 19:43:32 GMT
< Content-Type: text/plain
< Content-Length: 8
< Connection: keep-alive
<
backend
* Connection #0 to host cafe.example.com left intact