KIC creates multiple Kong Routes per path + method in an HTTPRoute

[chilledornaments]

Is there an existing issue for this?

• I have searched the existing issues

Does this enhancement require public documentation?

• I have added an Acceptance Criteria item for adding and/or adjusting public documentation (if applicable)

Problem Statement

When a user creates an HTTPRoute with multiple matches for the same path but with different methods, KIC creates one Kong Route per path+method combination. While this is expected based on the httpRouteMatchMeta.getKey() method, this behavior is counterintuitive to how decK, the Terraform provider, and Kong Manager function; a user is able to configure multiple methods on a single route. This isn't a problem operationally, but does lead to some route bloat.

Here's an example manifest. KIC will create two Kong Routes from this - one that accepts GET on example.com/foo and another that accepts POST on example.com/foo:

---
apiVersion: gateway.networking.k8s.io/v1
kind: HTTPRoute
metadata:
  name: foo
  namespace: default
spec:
  parentRefs:
    - group: gateway.networking.k8s.io
      kind: Gateway
      name: kong
      namespace: kong
  hostnames:
    - example.com
  rules:
    - matches:
        - path:
            type: PathPrefix
            value: /foo
          method: "OPTIONS"
        - path:
            type: PathPrefix
            value: /foo
          method: "POST"
      backendRefs:
        - kind: Service
          group: ""
          name: foo-blah
          port: 8888

Proposed Solution

Ideally, KIC would allow merging multiple HTTPRouteMatch with the same path but different method into a single Kong Route.

Additional information

No response

Acceptance Criteria

No response