Fix upgrade script to delete coredns config for all the CPs #2699
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…grade Signed-off-by: Rahul Ganesh <[email protected]>
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Dec 1, 2023
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Coredns config map needs to be deleted from all the CP nodes (not just the first CP) before running kubeadm upgrade as coredns tag mismatch can lead to kubeadm upgrade failure. Before upgrading each of the CP backup coredns config and restore it once the upgrade is successful.
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