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Can one of the admins verify that this patch is reasonable to test? (reply "ok to test", or if you trust the user, reply "add to whitelist")

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Labelling this PR as size/XL

Can one of the admins verify that this patch is reasonable to test? (reply "ok to test", or if you trust the user, reply "add to whitelist")

If this message is too spammy, please complain to ixdy.

i signed it!

We found a Contributor License Agreement for you (the sender of this pull request), but were unable to find agreements for the commit author(s). If you authored these, maybe you used a different email address in the git commits than was used to sign the CLA (login here to double check)? If these were authored by someone else, then they will need to sign a CLA as well, and confirm that they're okay with these being contributed to Google.

I'm recommending you copy /cmd/kube-apiserver and /pkg/master/

I or @nikhiljindal can answer questions.

Labelling this PR as size/XXL

uber api server in new PR due to "copy /cmd/kube-apiserver and /pkg/master/" and CLA issue
#21190

client for clusters api in PR
TBD

cluster controller in PR
TBD