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[Proposal] Add docker engine upgrade document in swarm mode cluster #33869
Yes, this is something that needs more documentation; I see there's an issue tracking this in the docs repository docker/docker.github.io#2439, perhaps you can add a comment there?
The recommended approach is to first upgrade manager nodes (one at a time, so that you don't loose quorum); after manager nodes are upgraded, upgrade your worker nodes.
Depending on your situation, you may want to drain nodes before upgrading (
I'll close the issue here, because docker/docker.github.io#2439 is tracking this, and this is a documentation issue, but feel free to comment after I closed