Unconditionally renew certificates when upgrading the cluster #990
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: xmudrii The full list of commands accepted by this bot can be found here. The pull request process is described here
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Jul 17, 2020
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LGTM label has been added. Git tree hash: 8b98d6698138dabe91afcbc1bf980ad1576faab2
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What this PR does / why we need it:
Unconditionally renew certificates when upgrading the cluster.
Due to an upstream bug, kubeadm wasn't automatically renewing the certificates as the
--certificate-renewalflag was set to false by default. In v1.17 that bug has been fixed, but as we still support older versions, we unconditionally set this flag to true to ensure that certificates will be renewed.kubernetes/kubeadm#1818
Does this PR introduce a user-facing change?:
/assign @kron4eg