[SPIKE] What extension points should each functionality group utilize?

[mpstefan]

Once the groups of NGINX functionality are organized, we need to determine the best way to utilize extension points and attachment to apply the configuration to NGINX in a Gateway API oriented way.

1. What attachment or extension points should each group of NGINX functionality use?
2. What resources does each group affect?
3. Where can we document the results of this spike?

When we answer the above questions, we want an enhancement proposal to be created that describes the outcome of the functionality grouping.

[mpstefan]

Some useful links:

Extension Points
Policy Attachment
Last extension point - TLS options in a Listener of the Gateway

[pleshakov]

One more extension point - per Gateway Infrastructure field -- https://gateway-api.sigs.k8s.io/reference/spec/#gateway.networking.k8s.io/v1.GatewayInfrastructure. (currently, experimental)