Use Deprecated API metrics in 1.19

Pluto has been a great tool in identifying deploy-time usage of deprecated APIs. However, we still have a bit of a blind spot when it comes to runtime usage of deprecated APIs -- e.g. controllers, etc.

Kube 1.19 introduces metrics indicating deprecated API usage, as well as an annotation on audit events. Would it be possible to tap into one or both of these new information sources with another subcommand in Pluto?

[sudermanjr]

@davidnortonjr-sps Thanks for the suggestion, I think it's definitely something we should consider looking into.

[stale]

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