Improve warning message when not using sudo

[aleksandaratanasov]

Summary

This feature is a direct result from #606 and the solution provided there. After the initial default installation (e.g. installing microk8s from the Ubuntu Server installer) if a user runs microk8s without sudo, they will automatically get the following message:

You can either try again with sudo or add the user <USER> to the 'microk8s' group:

sudo usermod -a -G microk8s <USER>

sudo chown -R <gin> ~/.kube

After this, reload the user groups either via a reboot or by running 'newgrp microk8s'.

As mentioned in #606 the first part of the solution is correct (adding the user to the group), however the second regarding ~/.kube is not, since for a default setup there is no such folder. Again as proposed in #606, a simple

su - ${USER}

would suffice.

Why is this important?

Allows users to easily remove the requirement for using sudo using correct step-by-step guide that is provided by microk8s itself.

[sachinkumarsingh092]

Hey @aleksandaratanasov, Are you proposing that instead of the current message, we instead show the message to use a superuser shell?

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[aleksandaratanasov]

Hey @aleksandaratanasov, Are you proposing that instead of the current message, we instead show the message to use a superuser shell?

Would be a possible solution I think. Needs to be evaluated by more people though.

PS: Sorry for the late reply. Completely forgot about this issue.