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You can specify uid/gid when creating etcd user and group, that's an exercise for the reader. They must both be named

etcd

iirc

that's an exercise for the reader.

ok

...so unless you want to break expectations, I wouldn't advise changing it.

ok, thank you for this. I will continue my investigations regarding point 2.

I think another reason that UID/GID isn't specified is because they don't need to match between master nodes as they'd be writing to local and not shared file systems.

Hello @rapid-helmet-86074 I'm agree with this. But wouldn't it be easier to define it equally over the nodes to set the securitycontext ? For me the answer is "yes". There's no problem currently, it just takes more time to understand/fix this point (the first time).

If you don't know the knowledge level of the user following the instructions, you might either confuse people about needing to check available UID/GID numbers or when someone has one conflicting with what's arbitrarily chosen for the docs. So leaving it off avoids the questions while still suggesting to anyone who cares that the UID/GID numbers don't matter and can be set as what they want.