Fixes commands not working without sudo

[vanou]

In doc of kubeadm installation, there are commands which wont work without sudo regarding to Ubuntu/Debian instruction.
However, other docs related to kubeadm under content/en/docs/setup/production-environment have commands with sudo.

This commit fixes this inconsistency.

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[sftim]

It seems a bit odd to document using sudo for just one of the OSs. If the change is good for Debian it seems like it'd be good for Fedora as well.

Separately, but I'm going to mention it, I don't like sudo. I'm personally wary of nudging readers towards a particular tool. That's my opinion and not an outright request to change. If other reviewers have similar feelings then that's worth taking into account.

[sftim]

Just the Debian tab? Line 77 has update-alternatives and that also requires superuser access.

[sftim]

You could add a comment saying that these commands need superuser access, eg sudo.
There are alternatives to sudo (and I use some of them).

[bradtopol]

Assigning @sftim since he's on top of this. Thanks Tim
/assign @sftim

[zparnold]

/approve
pending @sftim 's lgtm

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[neolit123]

i'm mostly -1 on adding sudo to the kubeadm docs. i don't think we have it the rest of our docs.
much better to add a note to execute commands as root.

[vanou]

Thanks @sftim , @bradtopol , @zparnold & @neolit123 !

My main concerns are

• inconsistency of using sudo across kubeadm doc (i.e. here&here with sudo but here without) and
• no indication of where root privilege is required. (or reader who is relatively new to *nix should try&error examples?)

For me, it's not matter to use sudo or not to use sudo with indication of privilege in doc. And I agree simple look of commands without sudo is nice.

So should I remove all sudo from docs related to kubeadm? Comments are very helpful.

[sftim]

Just a FYI, I don't have a lot of time to contribute to SIG Docs at the moment.
It sounds like other people are already taking part in a healthy discussion.

[neolit123]

@vanou

So should I remove all sudo from docs related to kubeadm? Comments are very helpful.

if you are up for it, please go ahead.
but some sections would require notes about using root.
or just having a note on top of a document "some commands require root".

[vanou]

Hi All,
I have made issue (#17181) related to this. Please share your ideas/comments around this.

[tengqm]

Adding 'sudo' wherever appropriate helps indicate the need of privilege and it hurts nobody.
/lgtm