Predefined `server-snippet` that can only be reference and used in ingress about ingress-nginx

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[longwuyuan]

There is no interest in the project to keep adding new annotations on-demand. The reason is that the volume of unique important use-cases is too large to cater to all expectations. Meaning if annotations are created for all requirements, then it becomes a combination of limited use of huge maintenance effort, of non-generic annotations or other features.

Secondly, the planning and execution of the Gateway API is already underway. The Gateway API will impact many expectations and alter designs. So adding annotations is not a improvement.

Thank you for your other contribution of gRPC_timeout annotation. That timeout annotation exists for HTTP but not for gRPC. So its a generic use-case for all gRPC deployments and hence its a improvement.

Wait for comments from others.

[Anddd7]

sure, i don't want to add annotations directly in this repo, that will bring chaos (like you said). 😄

i just want a mechanism that support custom annotations at runtime, like https://docs.nginx.com/nginx-ingress-controller/configuration/ingress-resources/custom-annotations/.

• the nginx.tmpl can be mounted to controller
• the annotations can be added to ingress, and only effect when it has been defined in nginx.tmpl

so, we don't need to create a full set of codes for annotation, just expose a map of variables for tmpl.

（let's see others 👍 ）

[longwuyuan]

I don't think this project's controller has the design & architecture for supporting anything resembling dynamic runtime annotations.

Wait for other comments.