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This is a template documentation about scaling an es cluster to a single node without any errors and minimum downtime. Feel free to post recommendations using the comment section below. First, run this command to exclude node(s). You can use a comma-...

This is a template post but below steps tested on our clusters, so you can use as it is (By adapting the kubespray configurations in this article according to your own configuration, of course). Procedure 1. Upgrade k8s to v1.21.6 using kubespray v2....
