https://issues.redhat.com//browse/OCPBUGS-42671 introduced strict validation.
that should help identify and correct many "broken" config.

Feedback said that the new "unknown field" and "duplicate field" checks don't provide enough context; `unknown field \"tolerations\"` r.g. isn't always enough, especially that `tolerations` can occur in many places.

this is a limitation of Go "encoding/json" v1, tried to enrich the context in vain https://go-review.googlesource.com/c/go/+/648055/comments/aedcc220_a137107a?tab=comments

https://github.com/kubernetes-sigs/json is an enhanced Go "encoding/json" v1 that provides more context and has also a case-sensitive check (which is another limitation of Go "encoding/json" v1 https://pkg.go.dev/encoding/json#Unmarshal)

This case-sensitive unmarshalling will be helpful for the transition towards CRD based config, as CRD validation is itself case-sensitive.

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- [ ] Prepare for this in 4.18



    

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