[chef] Adding user via 'users' removed vagrant from sudo list

[Anthony Kong < >]

I wonder what is the best way to add an additional user to a VM box.

I have added a dependency on 'users' to my cookbook and this 

include_recipe "users"

to my default.rb in my cookbook.

I have also created a data bag to hold the user details.

When I run kitcken converge, it stuck at 

-----> Chef Omnibus installation detected (install only if missing)

for a long time.

When I do 'kitichen login' to check, I find that user vagrant can no longer do sudo without prompting for password.

How can i add a user without destroying existing configuration?

Cheers, Tony