Add ability to have dynamic `invalidRouteResponseBody`

[kevin-shelaga]

Version

1.11.x

Is your feature request related to a problem? Please describe.

It would be useful to have invalid config/replaced routes return information about the route being replaced.

https://docs.solo.io/gloo-edge/latest/guides/traffic_management/configuration_validation/invalid_route_replacement/

 gloo:
    invalidConfigPolicy:
      invalidRouteResponseBody: Gloo Edge has invalid configuration. Administrators
        should run `glooctl check` to find and fix config errors.
      invalidRouteResponseCode: 404
      replaceInvalidRoutes: true

Describe the solution you'd like

Perhaps something like:

 gloo:
    invalidConfigPolicy:
      invalidRouteResponseBody: Gloo Edge has invalid configuration. Administrators
        should run `glooctl check` to find and fix config errors.
      invalidRouteResponseCode: 404

      replaceInvalidRoutes: true

Describe alternatives you've considered

Perhaps something like:

 gloo:
    invalidConfigPolicy:
      invalidRouteResponseBody: Gloo Edge has invalid configuration. Administrators
        should run `glooctl check` to find and fix config errors.
      invalidRouteResponseCode: 404
      replaceInvalidRoutes: true
      dynamicErrorDetails: true <------

Then the response body could contain more details like:

ErrorCode: 0001 - Upstream couldn't find the service or ErrorCode: 0002 - Invalid Route Table, no Auth configuration found

Additional Context

No response

[github-actions[bot]]

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