[Feature] Improve apiserver error codes

[Jeffwan]

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• I had searched in the issues and found no similar feature requirement.

Description

We use grpc-gateway to expose HTTP service. Currently, for any errors, it returns HTTP 500 code and user may need to unpack the error message and parse .code to understand the detail problem. This brings challenges to system integration, we would like to keep our self-define code there. At the same time, it's better for us to expose common used codes like 401, 404, 405 directly for upstream system to interact with.

Should be 404

Should be 401

Use case

Use for system integration

Related issues

No response

Are you willing to submit a PR?

• Yes I am willing to submit a PR!