Why not generate defaulters in generate-groups.sh?

[grantr]

I'm writing a CRD that uses defaulters. The documentation for generate-groups.sh states that it can generate defaulters (the generators comma separated to run (deepcopy,defaulter,client,lister,informer) or "all".) but it doesn't actually.

Is this intentional? Defaulters do get generated for internal types, but I haven't seen a clear definition of internal versus external so I don't know what types should be internal, or why defaulters (and conversions) only apply to internal types.

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[whypro]

I have the same question. Is this a mistake?
@sttts could you please take a look?

[sttts]

Defaulters are only used in aggregated API servers. Those use internal versions. For CRDs (and hence generator-groups.sh defaulters don't work. If you want defaults, look at the "OpenAPI default" feature in 1.15 (still alpha, will be beta in 1.16).