I'm running a Fedora Cloud Base 27 instance in openstack and ssh using the
'fedora' user works fine, and I can sudo without a password. However, if I add a
new user 'foobar' and add this user to the wheel group, this user needs a password
in order to use sudo. This makes sense based on the config in /etc/sudoers which has
'%wheel ALL=(ALL) ALL'. But I'm wondering how is the 'fedora'
user configured so that it's in the same wheel group and can sudo without a password?