Looking for some second opinions on upgrading a 3 node cluster.
Looking at the documentation, it looks pretty easy. I have a three node cluster w/ consul backend. We are upgrading from 1.5.7 to 1.7.X. Is there anything that i am missing?
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Shutdown standby node A
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replace binary w/ new version on node A
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Start node A
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do a vault login w/ root token to make sure node A is a follower
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Do the exact same steps for Node B above
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Finally shut down the Node C, which is the leader. Shutting it down will cause Node A or B to become leader. Replace binary on Node C and bring back up.
Is there anything else i should do?